Tektronix P6701B User's Manual
Contents
1. 7 1 174 1497 00 1 CA ASSY FBR OPT SINGLE MODE 2M L 80009 174 1497 00 FC PC TO DIAMOND 2 5 174 1385 00 1 CA ASSY FBR OPT SGL MODE 2M L FC PC 80009 174 1385 00 DIAMOND3 5 174 1386 00 1 CA ASSY FBR OPT SINGLE MODE 2M L FC PC ST 80009 174 1386 00 174 1387 00 1 CA ASSY FBR OPT SGL MODE 2M L FC PC FC PC 80009 174 1387 00 174 1388 00 1 CA ASSY FBR OPT SGL MODE 2M 80009 174 1388 00 L FC PC BICONIC 174 2322 00 1 CABLE FIBER OPT JUMPER 2 METER 62 5 62712 174 2322 00 MICRON FC PC TO FC PC 174 2323 00 1 CABLE FIBER OPT JUMPER 2 METER 62 5 62712 174 2322 00 MICRON FC PC TO BICONIC 174 2324 00 1 CABLE FIBER OPT JUMPER 2 METER 62 5 62712 PC SK 20 002A MICRON FC PC TO SMA 906 2 174 3737 00 1 FIBER OPTIC COUPLER 1 X 2 SPLITTER 0C5R7 3 0102 10 B UFC 0 WAVELENGTH INDEPENDENT 90 10 RATIO ATT 1 UFC 01 0 1 DB REFLE 3 011 0049 01 1 TERMN COAXIAL 50 OHM 2W BNC 24931 28A123 1 4 012 0482 00 1 CA ASSY RF COAXIAL RFD 50 TK2469 012 0482 00 OHM 175 1455 00 36 L BNC MALE STR BOTH ENDS W STRAIN RELIEF BO 5 015 0554 00 1 ADPTR SMA ELEC FEMALE BNC TO MALE SMA 24931 29JP170 1 6 119 5118 00 1 ATTEN OPTICAL 30MM L10DBFOR 1310 1550NM FC OLK97 FA100 35 10 HP CONN FA100 35 10 HP CTS710 7 020 2209 00 1 ACCESSORY KIT CONNECTOR OPTICAL DIN TO FC 80009 020 2209 00 SQUARE MOUNT ADAPTER Bo 0 1 1103 TekProbe Power Supply 80009 Order by Description Qo 0 0 1 FS156 or FS622 SDH SONET filters 80009 Order by Description 24 P6701B P6703B and P6723 Service Manua2. ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES Service Assurance If you have not already purchased Service Assurance for this product you may do so at any time during the product s warranty period Service Assurance provides Repair Protection and Calibration Services to meet your needs Repair Protection extends priority repair services beyond the product s warranty period you may purchase up to three years of Repair Protection Calibration Services provide annual calibration of your product standards compliance and required audit documentation recall assurance and reminder notification of scheduled calibration Coverage begins upon registration you may purchase up to five years of Calibration Services Service Assurance Advantages m Priced well below the cost of a single repair or calibration W Avoid delays for service by eliminating the need for separate purchase authorizations from your company m Eliminates unexpected service expenses For Information and Ordering For more information or to order Service Assurance contact your Tektronix representative and provide the information below Service Assurance may not be available in locations outside the United States of America Name VISA or Master Card number and expiration Company date or purchase order number Address Repair Protection 1 2 or 3 years City Stat
3. lt 200 uWp p P6701B P6703B and P6723 Service Manual P6701B and P6703B Specifications P6701B Normalized to 780nm at1V imW Relative Conversion Gain 400 500 600 700 Wavelength nm P6703B 12 800 900 1000 1 0 14 0 9 at 1550 nm 0 8 Normalized to 1310nm at 1 V imW 0 7 0 6 Relative Conversion Gain 0 5 0 4 0 3 0 2 1000 1200 1400 Wavelength nm 1600 Figure 1 Typical wavelength dependent gain 25 C ambient P6701B P6703B and P6723 Service Manual P6701B and P6703B Specifications Nominal Characteristics Nominal characteristics Table 3 describe guaranteed traits but the traits do not have tolerance limits Table 3 P6701B and P6703B nominal electrical characteristics Optical input coupling Accepts up to 62 5 um core diameter Numerical Aperture lt 0 29 Optical fiber dressing 1 inch bend radius not to exceed a bend radius of 1 inch to maintain performance Absolute non destructive fiber bend 0 5 inch bend radius DC conversion gain linearity lt 3 deviation in DC conversion gain from 50 uW to 1000 uW average optical input relative to conversion gain with 500 uW average optical power input Output zero drift lt 1 5 mV with output load requirement met for ideally stable optical input 0 25 C Output load requirement 50 Q x 196 P6701B P67
4. step Use isopropyl alcohol lint free lense paper and clean compressed air to clean the fiber ferrule ends Refer to page 17 for the recommended cleaning procedure 1 Using the fiber jumpers connect the 1310 nm digital optical source to the optical attenuator input Connect the output of the optical attenuator to the power meter 2 With the 1310 nm digital optical source transmitting at 155 Mbits sec OC3 adjust the optical attenuator so that the power meter indicates 20 dBm 3 Disconnect the jumper end from the output of the attenuator and connect the optical input connector of the P6723 to the output of the attenuator 4 Connect the output of the P6723 to the input of the TDS784 5 Setthe TDS784 to 5 ns div 200 mV div triggered on the signal and use the horizontal cursors to measure the peak to peak amplitude 6 Check that the peak to peak output steady state on to steady state off is lt 1 1 V and 0 69 V 14 P6701B P6703B and P6723 Service Manual P6723 Performance Verification Test record Probe Model Serial Number Temperature Date of Calibration Certificate Number RH 96 Technician Minimum Incoming Outgoing Maximum TON pV Performance test Output Amplitude P6701B P6703B and P6723 Service Manual 15 P6723 Performance Verification 16 P6701B P6703B and P6723 Service Manual Maintenance To keep the P6701B P6703B and P6723 O E Converters in good operating condition
5. 03B and P6723 Service Manual P6723 Specifications The specifications in Tables 4 through 6 apply to a P6723 O E converter The converter must have a warm up period of at least 20 minutes and be in an environment that does not exceed the limits described in Table 4 Specifications for the P6723 O E converter fall into three categories warranted typical and nominal characteristics Warranted Characteristics Warranted characteristics Table 4 describes guaranteed performance within tolerance limits or certain type tested requirements Warranted characteristics that have checks in the Performance Verification section of the service manual 070 9892 XX are marked with the symbol Table 4 P6723 warranted electrical characteristics Optical sensitivity Output rise time and fall time Output amplitude Output impedance Output VSWR Temperature Humidity Altitude 8 0 dBm maximum average optical power 28 dBm minimum average optical power lt 455 ps Minimum 690 mVp p Maximum lt 1 1 Vp p 50 10 lt 1 5 1 from 10 MHz to 1 GHz lt 2 0 1 from 1 GHz to 2 GHz Operating 0 to 50 C Nonoperating 40 to 71 C Operating 0 90 RH tested at 30to 50 C Nonoperating 0 90 RH tested at 30 to 60 C Operating 4 572 m 15 000 ft Nonoperating 15 240 m 50 000 ft 1 Measured with an optical input using 223 1 pseudorandom word having a 50 duty cycle P6701B P6703B and P6723 Se
6. 3 9200 select option 1 Service support 1 800 833 9200 select option 2 Technical support Email techsupport tektronix com 1 800 833 9200 select option 3 6 00 a m 5 00 p m Pacific time This phone number is toll free in North America After office hours please leave a voice mail message Outside North America contact a Tektronix sales office or distributor see the Tektronix web site for a list of offices P6701B P6703B and P6723 Service Manual V Preface vi P6701B P6703B and P6723 Service Manual ENG GENESIS EUN P6701B and P6703B Specifications The specifications in Tables 1 through 3 apply to a P6701B or P6703B O E converter The converter must have a warm up period of at least 20 minutes and be in an environment that does not exceed the limits described in Table 1 Specifications for the P6701B and P6703B O E converters fall into three categories warranted typical and nominal characteristics Warranted Characteristics Warranted characteristics Table 1 describes guaranteed performance within tolerance limits or certain type tested requirements Warranted characteristics that have checks in the Performance Verification section of the service manual 070 9892 XX are marked with the symbol Table 1 P6701B and P6703B warranted electrical characteristics DC optical input dynamic range Absolute maximum non destructive optical input DC conversion gain AC conversion gain Output zero Noi
7. 7 Cleaning the Optical Connectors 0 ee eee eee eee eee 17 Cleaning the External Parts 0 eee eee eee ee eee 18 Handling cn dana REA s Pere e e ui ee Ec ee Ce 18 Replacing TekProbe Interface Pins lleeeeeeseeeeeeeeeeeeeen 19 Removing and Replacing the TekProbe Interface Collar s 20 Options ose erm tton e ie dotes eren Meere N NES 21 Replaceable Parts Ee UE ERR ea ree Rm Wo e 23 P6701B P6703B and P6723 Service Manual i Table of Contents ii P6701B P6703B and P6723 Service Manual ee a General Safety Summary To Avoid Fire or Personal Injury Symbols and Terms A A Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified Only qualified personnel should perform service procedures Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Do Not Operate Without Covers Do not operate this product with covers or panels removed Wear Eye Protection Wear eye protection if exposure to high intensity rays or laser radiation exists Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Operate in Wet Damp Conditio
8. Service Manual Tektronix P6701B P6703B amp P6723 O E Converters 070 9892 03 Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summaries prior to performing service UNTO A OND OOIT ON N TIT TIT 070989203 Copyright Tektronix Inc All rights reserved Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix Inc WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If a product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center des
9. aser to attenuator NOTE The longer wavelengths of 1310 nm and especially 1550 nm are more sensitive to loss in fiber due to bending of the fiber than the short wavelength The fiber bend radius of the P670XB fiber input should lay with gt 1 inch bend radius along the fiber 5 entire length Although this precaution must be maintained throughout the entire PV procedure it is especially important for this step in order to accurately adjust and measure DC conversion gain of the P670XB 2 Connect FC connector of the optical attenuator to the FC receptacle of the optical power meter using optical cable use the appropriate optical power meter sensing head with calibrated measurement for a wavelength span including 1310 nm and 1550 nm Be sure the optical power meter wave length setting is at 1310 nm 3 Adjust the attenuator or optical source so that the power meter reads 100 uW 4 Move the FC fiber end the one now adjusted to 100 uW average power from the optical power meter and connect to the P670XB input under test by using the FC FC inline female female optical adapter 5 Attach voltmeter with 50 ohm termination to 1103 powered P670XB output 6 Check for 100 mV reading on voltmeter 8 The 1310 nm Conversion Gain is 1 00 V mW 1 Connect the probe under test to the 11K series oscilloscope and to the cal source m Ifthe unit under test is a P6701B connect the 850 nm modulated laser source to the optical attenuator inp
10. bs with the slots Gently press the two pieces together See Figure 4 Slot Figure 4 Replacing the TekProbe collar 20 P6701B P6703B and P6723 Service Manual REE SENS ry Options Option 95 documents the measurements taken during calibration Option FR documents the frequency response of the O E converter P6701B P6703B and P6723 Service Manual 21 Options 22 P6701B P6703B and P6723 Service Manual E Replaceable Parts AB jjj with dashed lines are not AC EZ lt SY lt replaceable P E Nn NOTE Parts illustrated Figure 7 Optional accessories P6701B P6703B and P6723 Service Manual 23 Replaceable Parts Replaceable parts list Fig amp index Tektronix Serialno Serial no number partnumber effective discontd Qty Name amp description Mfr code Mfr part number 5 1 131 3627 01 1 CONTACT ELEC GOLD PLATED TIP 18359 P 6158 1 2 131 6353 00 1 CONTACT ELEC GOLD PLATED TIP 18359 P 6158 2 3 205 0191 00 1 SHELL ELEC CONN BNC ABS DOVE GRAY 80009 205 0191 00 Standard accessories 6 1 131 6252 00 1 CONN FC TO FC SQUARE MOUNT 0C5R7 C092290 ADAPTER W ZIRCONIA CERAMIC SLEEVE 2 131 6250 00 1 CONN FC TO ST ADAPTER W ZIRCONIA CERAMIC 0C5R7 C032980 SLEEVE 3 131 6251 00 1 CONN SC TO FC SQUARE FLANGE ADAPTER 0C5R7 C002453 W ZIRCONIA CERAMIC SLEEVE 070 9890 XX 1 MANUAL TECH INSTRUCTIONS 4 LANGUAGES 80009 070 9890 XX 070 9892 XX 1 MANUAL TECH SERVICE ENGLISH 80009 070 9892 XX Optional accessories
11. e Postal code Calibration Services eoe Or 5 years Country Instrument model and serial number Phone Instrument purchase date ESSEN AEN Table of Contents General Safety Summary cc cece cece cece eee e ee cees iii Preface eects cae Mie rer are A X Van e a eq P TU RH Ue v Related Manuals 52 eee dicet ore dee cete oc e sae edo E oe Ag v Contacting Tektronix seeleeeeee II v P6701B and P6703B Specifications eere 1 Warranted Characteristics 0 0 cc ee 1 Typical Characteristics 5 22 date des ead ra leas ua 2 Nominal Characteristics 2 0 cee een tenn e nee 4 P6723 Specifications 1 0 ccc cece cece cece n nnn 5 Warranted Characteristics 2e utes AGRE ses Rol Sats RUE ND AS 5 Aypical Characteristics aroi eta des Ode BAe ae Ae ian a 6 Nominal Characteristics ub sak Son WADE e RAGE sO REE BA 6 P6701B and P6703B Performance Verification 7 Equipment Required 0 0 cece ee eee een eens 7 Noise Equivalent Power 0 0 cece eee eee urre een eee 8 Outp t Zero c neesow ez ee ow reete wl eee UR eee a whats e DU Race QR HD 9 DC Conversion Gain lleeeeeeeee tent nee nee 9 AC Conversion Gain 2 0 ec cece ence ras 10 P6723 Performance Verification ccccccccccccccecces 13 Equipment Required s cesiones eseun denia hee ia cee een e eens 13 Output Amplitde kisene respete bx deb RR S b Roe Rd 14 Maintenance sua RE RLEE ME IIR CORE ROUES E EA EAN cob 1
12. er of suppliers Cleaning the External Parts Handling 18 A Remove dirt with a soft cloth dampened in a mild detergent and water solution or isopropyl alcohol CAUTION To avoid damaging the probe use only a mild detergent and water solution or isopropyl alcohol do not use any other solvents or abrasive cleaners Do not immerse the probe Even though the fiber optic cable of the P6701B P6703B or P6723 O E Converter is protected by a jacket and strain relief the fiber optic cable should be handled carefully at all times CAUTION To avoid damaging the P6701B P6703B and P6723 OJE Converters take the following precautions Do not crush crimp or sharply bend the fiber optic cable Do not pull or yank the fiber optic cable Do not drop the converter assembly since damage and misalignment of the photodiode optical assembly can result Store the converter in a secure location when not in use Replace the protective cap on the connector when the converter is not in use The P6701B P6703B and P6723 O E Converters can connect to optical fibers with a core diameter of up to 62 5 um through one of the FC ST SC or DIN adapters Adapter cables that aid in connecting many other popular optical connectors are also available Refer to Optional accessories on page 24 P6701B P6703B and P6723 Service Manual Maintenance CAUTION To maintain the high performance low return loss of the O E A N conv
13. erter connect an adapter and cable between the input of the O E converter and the device under test When you make connections to other devices leave the adapter and cable in place to protect the optical connector of the O E converter from wear If you connect fiber cores larger than 62 5 um the O E converters may still couple light but the mismatch in core diameter will cause lower conversion gain and high insertion loss Replacing TekProbe Interface Pins 1 To remove the interface pin grasp the pin with a pair of needle nose pliers and gently pull the pin out See Figure 2 2 To replace the pin insert the new pin into the socket and press it in against a hard surface Figure 2 Replacing TekProbe interface pins 3 The pin installed in the position shown in Figure 3 is 0 020 inch shorter than the other pins Be sure to install the correct pin in this position instruments with the TekProbe interface may report errors if a longer pin is in this position See the Replaceable Parts List that begins on page 23 for ordering information P6701B P6703B and P6723 Service Manual 19 Maintenance ya Speci Figure 3 Location of short interface pin O Og Removing and Replacing the TekProbe Interface Collar 1 To remove the collar firmly pull the collar off by hand 2 To replace the collar align the smaller group of pins with the smaller of the two holes in the interface collar and align the ta
14. ignated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR
15. is step Use isopropyl alcohol lint free lense paper and clean compressed air to clean the fiber ferrule ends Refer to page 17 for the recommended cleaning procedure 1 Connect 780 nm laser to attenuator NOTE The fiber bend radius of the P670XB fiber input should lay with 1 inch bend radius along the fiber s entire length Although this precaution must be maintained throughout the entire PV procedure it is especially important for this step in order to accurately adjust and measure DC conversion gain of the P670XB 2 Connect FC connector of the optical attenuator to FC receptacle of the optical power meter using the optical cable Use the appropriate optical power meter sensing head with calibrated measurement for a wavelength span including 780 nm and 850 nm Be sure the optical power meter wavelength setting is at 780 nm 3 Adjust attenuator or the optical source source so that the power meter reads 100 uW 4 Move the FC fiber end the one now adjusted to 100 uW average power from the optical power meter and connect to the P670XB input under test by using the FC FC inline female female optical adapter 5 Attach voltmeter with 50 ohm termination to 1103 powered P670XB output 6 Check for 100 mV reading on voltmeter 8 The 780 nm conversion gain is 1 00 V mW P6701B P6703B and P6723 Service Manual 9 P6701B and P6703B Performance Verification P6703B AC Conversion Gain 10 1 Connect 1310 nm l
16. l Replaceable Parts Manufacturers cross index Mfr code 0C5R7 OLK97 18359 24931 62712 80009 TK2469 Manufacturer ALCOA FUJIKURA LTD JDS FITEL INC PYLON CO INC BERG ELECTRONICS INC SEIKO INSTRUMENTS USA INC TEKTRONIX INC UNITREK CORPORATION Address 150 RIDGEVIEW CIRCLE 570 WEST HUNT CLUB RD 51 NEWCOMB ST BERG ELECTRONICS RF COAXIAL DIV 2100 EARLYWOOD DR PO BOX 547 ELECTRONIC COMPONENTS DIV 2990 W LOMITA BLVD 14150 SW KARL BRAUN DR PO BOX 500 3000 LEWIS amp CLARK HWY SUITE 2 P6701B P6703B and P6723 Service Manual City state zip code DUNCAN SC 29334 NEPEAN ONTARIO CA ONTARIO K2G 5W8 ATTLEBORO MA 02703 1403 FRANKLIN IN 46131 TORRANCE CA 90505 BEAVERTON OR 97077 0001 VANCOUVER WA 98661 25 Replaceable Parts 26 P6701B P6703B and P6723 Service Manual
17. ns Do Not Operate in an Explosive Atmosphere Keep Product Surfaces Clean and Dry Terms in this Manual These terms may appear in this manual WARNING Warning statements identify conditions or practices that could result in injury or loss of life CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product P6701B P6703B and P6723 Service Manual iii General Safety Summary Symbols on the Product The following symbols may appear on the product A AN m WARNING Protective Ground CAUTION Double High Voltage Earth Terminal Refer to Manual Insulated iv P6701B P6703B and P6723 Service Manual E Preface This manual contains specifications and procedures for servicing the P6701B P6703B and P6723 O E Converters Related Manuals For operating instructions refer to the P6701B P6703B and P6723 Instruc tions 070 9890 XX Contacting Tektronix Phone 1 800 833 9200 Address Tektronix Inc Department or name if known 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA Web site www tektronix com Sales support 1 800 83
18. observe proper cleaning and handling techniques Cleaning the Optical Connectors A Equipment Required Procedure Small dust particles and oils can easily contaminate fiber optic connectors and reduce or block the signal Take care to preserve the integrity your connectors by keeping them free of contamination CAUTION To prevent loss of optical power or damage to the fiber optic connectors keep the connectors clean at all times When cleaning the connectors with a swab use gentle circular motions Use only high quality cleaning supplies that are non abrasive and leave no residue To reduce the need for cleaning immediately replace protective caps on the fiber optic connectors when not in use Use the following items to clean the fiber optic connectors W clean compressed air m fiber optic cleaning swabs m isopropyl alcohol Clean the fiber optic connectors as follows 1 Hold the can of compressed air upright and spray the can into the air to purge any propellant 2 Spray the clean compressed air on the connectors to remove any loose particles or moisture 3 Moisten a clean fiber optic swab with isopropyl alcohol then lightly swab the surfaces of the connectors 4 Spray the clean compressed air on the connectors again to remove any loose particles or isopropyl alcohol P6701B P6703B and P6723 Service Manual 17 Maintenance NOTE Cleaning kits for fiber optic connectors are available from a numb
19. on at zero light level output gt 200uW CW stability 0 1 dB over 5 minutes modulated square wave 10 kHz with off modulation at zero light level noise lt 1 mV BW gt 4 GHz HP 437B with power sensor HP 8481D OIG 502 11K 1140X CSA40xX or DSA60X 4 decades 50um core fiber FC JDS 5000L with 62 um style connectors fiber with FC connectors 4 1 2 digit Tektronix DMM916 FC FC multimode 62 5um 2 174 2322 00 meters FC female to FC female 131 5039 00 CW and modulated mode available modulation with OFF level at or below 0 1uW optical falltime 1us Noise Equivalent Power 1 Power the P670XB under test using an 1103 Tekprobe power supply 2 Connect the P670XB output channel from the 1103 power supply to the power meter input with the 1 GHz filter in series with this connection 3 With the dust cover on the input to the P670XB the power meter reading should be lt 15 nW for the P6701B and lt 7 nW for the P6703B P6701B P6703B and P6723 Service Manual P6701B and P6703B Performance Verification Output Zero DC Conversion Gain P6701B 1 Attach 1103 powered P670XB output to voltmeter with 50 ohm termination 2 Install optical dust cover on input to P670XB under test 3 Check that output voltage is lt 1 mV NOTE Make sure that the optical connector ends of both the fiber jumpers and the input fiber of the O E converter under test are well cleaned before perform ing th
20. rvice Manual P6723 Specifications Typical Characteristics Typical characteristics Table 5 describe typical but not guaranteed performance Table 5 P6723 typical electrical characteristics Effective wavelength range Aberrations Nominal Characteristics 1100 to 1570 nm lt 15 20 p p total Nominal characteristics Table 6 describe guaranteed traits but the traits do not have tolerance limits Table 6 P6723 nominal electrical characteristics Optical input coupling Optical data rate Optical fiber dressing Absolute non destructive fiber bend Output load requirement 1 Accepts up to 62 5 um core diameter Numerical Aperture lt 0 29 20 MB s minimum 650 Mb s maximum 1 5 inch bend radius 0 5 inch bend radius 50 Q 1 AC or DC coupled Measured with an optical input using 223 1 pseudorandom word having a 50 duty cycle P6701B P6703B and P6723 Service Manual _ SSS P6701B and P6703B Performance Verification Equipment Required Use the following procedures to verify the warranted specifications of the P6701B and P6703B O E converters Before beginning these procedures refer to page 12 and photocopy the test record and use it to record the performance test results The recommended calibration interval is one year These procedures test the following specifications m Noise equivalent power m Output zero wm DC conversion gain wm AC conversion gain Table 7 lists the equipment req
21. se equivalent power with 1 GHz low pass filter Output impedance Temperature P6701B P6703B and P6723 Service Manual DC electrical out will meet conversion gain specifications up to 11 mW 0 dBm peak optical power input 10 mW average power 20 mW peak power P6701B 1 VimW 8 at DC 780 nm P6703B 1 VimW 8 at DC 1310 nm P6701B 1 V mW 8 with lt 100 uWp p optical modulation 780 nm P6703B 1 V mW 8 with lt 100 uWp p optical modulation 1310 nm lt x 1 mV into 50 Q 20 to 25 C P6701B x 0 87 uWrms x 28pW Hz P6703B lt 0 59 uWnys s 19 pW Hz 50 Q 1096 Operating 0 to 50 C Nonoperating 40 to 71 C P6701B and P6703B Specifications Table 1 P6701B and P6703B warranted electrical characteristics cont Humidity Altitude Typical Characteristics Operating 0 90 RH tested at 30to 50 C Nonoperating 0 90 RH tested at 30to 60 C Operating 4 572 m 15 000 ft Nonoperating 15 240 m 50 000 ft Typical characteristics Table 2 describe typical but not guaranteed performance Table 2 P6701B and P6703B typical electrical characteristics Effective wavelength range Wavelength dependent gain Optical bandwidth Rise time Aberrations P6701B 500 to 950 nm P6703B 1100 to 1650 nm See Figure 1 P6701B 1 0 GHz P6703B 1 2 GHz P6701B 475 ps P6703B 390 ps peak optical signal input lt 100 uWp p lt 15 peak optical signal input
22. tion Use the following procedure to verify the warranted specification output amplitude of the P6723 O E converter Before beginning these procedures refer to page 15 and photocopy the test record and use it to record the performance test results The recommended calibration interval is one year Equipment Required Table 8 lists the equipment required to perform the performance verification procedure The types and quantities of connectors may vary depending on the specific equipment you use The instrument should be tested at an ambient temperature between 20 and 30 degrees C Table 8 Test equipment Description Example product Optical power meter with Accuracy gt 2 5 resolution gt HP 8153A with power head and adapters 5 pW Max power gt 1 mW cali sensor HP 81530A and brated from 700 nm 1600 nm HP 81531A 1310 nm digital optical 52 MHz 622 MHz Tektronix CTS710 CTS750 signal source Sampling oscilloscope oscilloscope with Tekprobe II Tektronix TDS784x interface Adjustable optical 4 decades 50 um core fiber JDS 5000L with 62 um attenuator FC style connectors fiber with FC connectors Optical cable FC FC multimode 62 5 um 2 174 2322 00 meters P6701B P6703B and P6723 Service Manual 13 P6723 Performance Verification Output Amplitude NOTE Make sure that the optical connector ends of both the fiber jumpers and the input fiber of the O E converter under test are well cleaned before perform ing this
23. uired to perform the performance verification procedure The types and quantities of connectors may vary depending on the specific equipment you use The instrument should be given a 20 minute warm up period and ambient temperature must be between 20 and 30 degrees C Table 7 Test equipment Description Example product Optical power meter with Accuracy gt 2 5 resolution gt HP 8153A with power head and adapters 5 pW Max power gt 1 mW cali sensor HP 81532A and brated from 700 nm 1600 nm HP 81531A P6701B only 780 nm cal output gt 200uW CW source stability gt 0 1 dB over 5 minutes modulated square wave 10 kHz with off modulation at zero light level P6701B only 850 nm cal output gt 200uW source stability gt 0 1 dB over 5 minutes modulated square wave 10 kHz with off modulation at zero light level P6701B P6703B and P6723 Service Manual 7 P6701B and P6703B Performance Verification Table 7 Test equipment cont Description P6703B only 1310 nm cal Source P6703B only 1550 nm cal source RF power meter P6703B only 1300 nm impulse generator P6701B only 850 nm impulse generator Sampling oscilloscope Adjustable optical attenuator Digital voltmeter 50 ohm termination Optical cable Inline optical adapter TekProbe Power Supply Low pass filter output gt 200uW stability gt 0 1 dB over 5 minutes modulated square wave 10 kHz with off modulati
24. ut Connect the output of the optical attenuator to the P6701B input via an inline adapter m Ifthe unit under test is a P6703B connect the 1310 nm modulated laser source to the optical attenuator input Connect the output of the optical attenuator to the P6703B input via an inline adapter 2 Adjust the laser cal source to provide a 10KHz to 20KHz optical square wave on the scope Adjust the optical attenuator so that the total peak to peak signal from the P670XB is about 200 mV or 200 uW if the vertical units displayed are W P6701B P6703B and P6723 Service Manual P6701B and P6703B Performance Verification 3 Setthe oscilloscope for 5 us div on the horizontal scale and 5 mV div or 5 uW div for the vertical scale Trigger the scope on the negative edge of the trace and set ground to the middle of the screen This is equivalent to 1 div 4 Check that the OFF level of the square wave at approximately 5 us after the 90 fall time point is within 16 mV 8 of the ground level center line P6701B P6703B and P6723 Service Manual 11 12 P6701B and P6703B Performance Verification Test record Probe Model Serial Number Temperature Date of Calibration Performance test Noise Equivalent Power Output zero DC conversion gain AC conversion gain Certificate Number RH 96 Technician N A 15 nW P6701B 7 nW P6703B P6701B P6703B and P6723 Service Manual EE 2a ae eee P6723 Performance Verifica
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