S-Series - User Manual
Contents
1. to not damage the APD it is recommended to put ferrite beads or ferrite clamp ons on all cables leading to the APD This includes TTL output and power supply input Deteccion Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 O Fax 49 8142 2864 11 into lasercomponents com www lasercomponents com Single Photon Counting Module COUNT S Series User Manual LASER COMPONENTS Electrical connections rear side Da Sa 1 Power Supply 2 pin LEMO connector type EXG OB 302 This is for the optional 12V DC power adapter COUNT PSU sold separately Alternatively the appropriate cable trom the dualSPAD power supply DSN 102 PicoQuant or from the COUNT PSU is connected here The appropriate mating connector is the LEMO FGG 0B 302 CLADA42 Power Supply 2 TTL signal output LEMO connector type EPS OO 250 Use a double shielded RG223 U coaxial cable to con nect his signal to e g the dualSPAD power supply DSN 102 PicoQuant Suited Lemo connector types are e g FFS 00 250 or the lemo BNC adapter type ABF 00 250 CTA supplied Note the output should be terminated into a 50 Ohms load Powering up the module Before powering up the module it is strongly advised to make sure that no light reaches the sensor In order to power up the module simply plug in the AC adapter in the power supply connector or in case you are using the DSN 102 dualSPAD power supply turn on the DSN and powe2. 00 nm Incoming photons generate corresponding electrical pulses which may be conveniently read out at the TTL output These TTL pulses can then be further processed by connecting the module to the quTAU which provides the possibility to count timetag and store the data via USB on a PC Operation Handling single photon counting modules The avalanche photon diode inside the COUNT S is an extremely sensitive device It can be permanently damaged by overexposure to intense light A The COUNT S contains a high voltage supply Users may be injured if the case is opened All internal settings are preset there are no user adjustments necessary Opening the case will invalidate the warranty Excessive light level e g daylight might damage a powered COUNT S Precautions should be taken to avoid such situations or alternatively to monitor the count rate and eventually shut down the power to the COUNT S When the COUNT S detector is mounted on another instrument ensure that the optical connection is lighttight Handle the COUNT S detector with care Do not drop it or expose it to excessive mechanical shocks or vibrations Heat Dissipation In order to avoid damage to the module adequate heat sinking must be provided by placing or mounting the module onto a suitable heat sink e g an optical table TTL output and power supply A A Always switch off the module before connecting or disconnecting TTL output In order
3. Detectors Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 O Fax 49 8142 2864 11 into lasercomponents com www lasercomponents com Single Photon Counting Module COUNT S Series User Manual Table of Contents Introduction Operation Handling single photon counting modules Electrical connections rear side Powering up the module Mounting the Countmodule Frontside Base plate Performance Timing resolution Correction factor Technical Dota Technical specifications for COUNT S module Absolute maximum ratings Product number designations Warranty ESD information Individual module test data Sofety RoHS compliance Support O oo oo N NI O amp O O amp O Gi Gi Gi amp AA G GG NNDS LASER COMPONENTS Detecior Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 O Fax 49 8142 2864 11 info lasercomponents com www lasercomponents com Single Photon Counting Module COUNT S Series User Manual LASER COMPONENTS Introduction Laser Components COUNT S series of single photon counting modules has been developed to offer a unique com bination of high quantum efficiency large active area and ease of use for photon counting applications Combining Laser Components SAP5O0 silicon avalanche photodiode with specially developed quenching and signal process ing electronics the module offers everything needed for single photon detection trom 400 10
4. age temperature e20 7U j9 Count rate 500 Kcps Fiber Connection Option The COUNT XX FC has a FC style fiberoptic receptacle pre aligned to the optical detector surface The GRIN lens used in this assembly is optimized and AR coated for the range 440 1000 nm Optical Fiber Shielding To avoid stray light impinging on the detector and affecting the count rate any optical tiber assembly attached to the FC connector must be completely opaque LASER COMPONENTS otters suitably shielded optical tiber assemblies please contact us for details Product Number Designations COUNT XX S FC Dark count rate FC Connector optional 1000 1000 c s 2000 2000 c s 5000 5000 c s Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 O Fax 49 8142 2864 11 into lasercomponents com www lasercomponents com Deteccion Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 O Fax 49 8142 2864 11 into lasercomponents com www lasercomponents com Single Photon Counting Module COUNT S Series User Manual Warranty A standard 1 2 month warranty following shipment applies Any warranty is null and void it the module case has been opened Warranty is void if the module input exceeds 12 5 V ESD Information Modules should only be handled at an ESD safe work station Individual Module Test Data Each module is supplied with test data indicating the module s actual dark count dea
5. d time photon detection efficiency 405 nm 670 nm and 810 nm and atterpulsing probability Safety The COUNT S Series contains a high voltage power supply Users may be injured it the case is opened All internal settings are pre set there are no user adjustments Units that appear detective or have sutfered mechanical damage should not be used because of possible electrical shorting of the high voltage power supply Opening the case may damage sensitive components and expose the user to the risk of electrical shock Please contact factory for repairs RoHS Compliance The COUNT S Series is designed and built to be fully compliant with the European Union Directive 2002 95 EC LASER COMPONENTS Deteccion 04 15 V3 HW Icp counts usermanual Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 O Fax 49 8142 2864 11 into lasercomponents com www lasercomponents com Single Photon Counting Module COUNT S Series User Manual LASER COMPONENTS Support Your COUNT S module has undergone thorough testing at Laser Components It is stable and reliable Never theless we continually make improvements that will be incorporated into future versions In any case we would like to offer you our complete support Please do not hesitate to contact Laser Compo nents iif you would like assistance with your system If you observe any errors please e mail a detailed descrip tion of
6. he measured count rate as shown in figure 2 wo correction factor N _ _ 1 0 ra ei 1000 10000 100000 1000000 photon rate 1 s Fig 2 Correction factor calculated for a dead time of 700 ns Single Photon Counting Module Detectors COUNT S Series User Manual LASER COMPONENTS Technical Specifications for COUNT S Module Parameter Min Typ Max Unit Spectral range 400 1000 nm Dark count rate COUNT 1000S 1000 Counts s COUNT 2000S 2000 Counts s COUNTS5000S 5000 Counts s Photon detection efficiency Pd at 4O05 nm 60 6 70 nm 65 810 nm f AS Pd variation at constant temperature TBC Active area diameter nominal 500 ym Timing resolution 600 ps Dead time 300 700 1500 ns TTL output pulse length 22 ns TTL output pulse amplitude into 50 Ohm 2 V Delay between photon impact and TTL 20 ns pulse Supply voltage 11 5 12 0 125 V Supply current switch on 0 5 Supply current operation at 100 Keps 0 15 A Specitications valid for modules without FC connector 2 Timing resolution depends on count rate and wavelength Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 O Fax 49 8142 2864 11 info lasercomponents com www lasercomponents com Single Photon Counting Module Detectors COUNT S Series User Manual LASER COMPONENTS Absolute Maximum Ratings Min Typ Max Unit Supply voltage Bee 12 0 12 5 V Operating temperature 10 40 g9 Stor
7. r up the corresponding SPAD channel After power on allow 30 seconds settling time in which the sensor will be cooled down to its operating temperature NOTE the COUNT S will not generate any output signal until the operating temperature has been reached Detectors Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 O Fax 49 8142 2864 11 into lasercomponents com www lasercomponents com Single Photon Counting Module COUNT S Series User Manual LASER COMPONENTS Mounting the Count Module The COUNT S can be either mounted trom the frontside or by using the dedicated mounting holes on the base plate Front side 8 32 UNC 2x 44 45 1 75 The front side of the COUNT S provides two mounting options a C mount thread 1 32 UN compatible with tor example the LINOS tube system 2 two mounting holes with 8 32 UNC thread depth 8 mm Please note that you still have to support the weight of the detector when this mounting style is used Base plate The base plate of the COUNT S provides 6 mounting holes 3 holes each side with a diameter of 3 9 mm 9 85 2 75 Deteccion Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 O Fax 49 8142 2864 11 into lasercomponents com www lasercomponents com Single Photon Counting Module COUNT S Series User Manual LASER COMPONENTS Performance Timing resolution The single pho
8. the problem and relevant circumstances to info lasercomponents com Your feedback will help us to improve the product and documentation Of course we also appreciate good news It you have obtained exciting results with one of our systems please let us know and where appropriate mention us in your publications Retraction of old devices Waste electrical products must not be disposed of with household waste This equipment should be taken to your local recycling center for sate treatment WEEE Reg No De96457402 Product Changes LASER COMPONENTS reserves the right to make changes to the product s or information contained herein without notice No liability is assumed as a result to their use or application Ordering Information Products can be ordered directly trom LASER COMPONENTS or its representatives For a complete listing of representatives visit our website at www lasercomponents com Custom designed products are available on request
9. ton timing resolution of the COUNT S depends on three factors and is generally different for every single module please see the test report of your COUNT S for details 1 Detection wavelength the best photon timing resolution i e smallest FVVHM is generally achieved around 680 nm The FWHM increases slightly towards blue and NIR detection wavelengths 2 Focusing quality for optimum timing resolution the light should be focused to a small spot lt 50 ym in the center of the sensor Ott center focusing or overtilling the sensor area might lead to an increased FVVHM of the photon timing resolution 3 Counting rate the FWHM of the photon timing resolution increases at high counting rates Correction factor Every COUNT S has an inherent dead time of approx ZOO ns atter detecting a photon During this dead time the COUNT S is blind and can not detect further photons As a consequence the measured counting rate is lower than the true actual counting rate The true actual counting rate can be calculated trom the measured counting rate as follows R ee actual 1 T D measured where Ractual actual counting rate Rmeasured measured counting rate TD SPAD dead time The dead time effect can also be seen as a deviation from the unity of the ratio between the actual counting rate and the measured counting rate Given a dead time and equation 1 it is possible to calculate a correction factor as a tunction of t
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