EPS-1000 Polarization-Entangled Photon Source Narrowband 810 nm

Active Area Diameter 0.18 mm; Max. Dark Count Rate 25-2,500 c/s; Photon Detection Efficiency 60%-75%; Max. Count Rate 40 M c/s; Dead Time 22, 50 ns; Pulse Width 10, 30 nsExcelitas’ SPCM single photon counting modules are self-contained modules that meet the low-light-level detection demands of confocal microscopy, fluorescence, luminescence, and TCSPC, particle sizing and quantum communications.SPCM modules use a unique silicon avalanche photodiode (SLiK) with a 180 µm diameter circular active area, achieving peak photon detection efficiency greater than 65% to even 75% (depending on model) with unmatched uniformity over the full active area.The photodiode is both thermoelectrically cooled and temperature controlled, ensuring stabilized performance despite ambient temperature changes. Operating temperature range has been increased and the module will function with case temperatures between +5 ˚C and +70 ˚C.SPCM single photon counting modules are ideal for laboratory and OEM use and offer market-leading photon detection efficiency (PDE), low after-pulsing, high linear dynamic range, and low dark counts.Excelitas' newly enhanced SPCM-AQRH single photon counting module detects single photons over the wavelength range of 400 nm to 1064 nm with performance parameters superior to other solid state or vacuum-tube based photon counters.The SPCM-AQRH achieves >70% peak photon detection efficiency at 650 nm. A TTL-level pulse is generated for each photon detected and the signal is available at the BNC connector at the rear of the module. The module comes as standard with a free-space window to the APD, with FC fiber adapter, C-mount or tube cage mount bracket/adapter options.Recent electronic circuit enhancements have reduced the minimum dead time to less than 25 ns, thereby increasing linearity and improving the dynamic range of the module. Timing resolution of the module was also improved significantly. The SPCM-AQRH has internal protection circuitry that protects the avalanche photodiode and the module electronics from damage due to accidental overload from exposure to ambient lighting.The Excelitas SPCM-AQRH-WX-TR is a single photon counting module of the latest product generation, specifically selected and performance-optimized for timing resolution. This family of –TR modules is designed to support applications in time-correlated single photon counting (TCSPC), fluorescence lifetime measurements and fluorescence lifetime imaging microscopy (FLIM).The SPCM-AQRH-WX-TR uses a specially selected SLiK silicon avalanche photodiode with timing resolution better than 250 ps while maintaining peak photon detection efficiency (PDE) of more than 75% at 650 nm over a 180 µm diameter active area. While some performance parameters, in particular afterpulse probability, are traded off against the optimized timing performance, other performance parameters of the standard SPCM-AQRH, such as outstanding uniformity, overload protection, temperature stability and linearity, are still maintained by this timing-optimized module.The Excelitas SPCM-NIR is a single photon counting module specifically selected and performance-optimized for the near infrared wavelength spectrum. This NIR spectrum enhanced device is designed to support long range LiDAR, quantum communication and microscopy, as well as many other applications.The SPCM-NIR uses a specially selected SLiK silicon avalanche photodiode with peak single photon detection efficiency typically better than 73%. This module achieves enhanced red and NIR sensitivity while maintaining such other performance parameters of the standard SPCM-AQRH, such as outstanding uniformity, overload protection, temperature stability and linearity.The SPCM-AQ4C is a four-channel photon counting module capable of detecting single photons of light over the wavelength range from 400 nm to 1060 nm. Each channel is independent from the others.The SPCM-AQ4C uses a unique silicon avalanche photodiode (SLiK) with a peak photon detection efficiency exceeding 60% at 650 nm and an improved circuit with a peak count rate >4M c/s for short bursts of time on all four channels and a count rate of 1.5 M c/s for continuous operation. There is a "dead time" of 50 ns between pulses.The module requires +2 V, +5 V, and +30 V power supplies. The output of each channel – a TTL pulse that is 4.5 V high (into a 50 Ω load) and 25 ns wide – is available at the card edge behind the circuit board. Each TTL pulse corresponds to a detected photon. All input and output signals are available at the card connector.Applications: Particle Sizing & Characterization; Confocal Microscopy; Photon Correlation Spectroscopy; Quantum Cryptography; Astronomical Observation; Optical Range Finding; Adaptive Optics; Ultra-sensitive Fluorescence; Flow Cytometry; Wind LiDAR Part Number Photo Sensitive Diameter Maximum Dark Count Rate Photon Detection Efficiency @ 650 nm Max. Count Rate before Saturation Dead Time Pulse Width Downloads SPCM-AQRH-10 0.18 mm 1500 c/s 65% 40M c/s 22 ns 10 ns Datasheet SPCM-AQRH-11 0.18 mm 1000 c/s 65% 40M c/s 22 ns 10 ns Datasheet SPCM-AQRH-12 0.18 mm 500 c/s 65% 40M c/s 22 ns 10 ns Datasheet SPCM-AQRH-13 0.18 mm 250 c/s 65% 40M c/s 22 ns 10 ns Datasheet SPCM-AQRH-14 0.18 mm 100 c/s 65% 40M c/s 22 ns 10 ns Datasheet SPCM-AQRH-15 0.18 mm 50 c/s 65% 40M c/s 22 ns 10 ns Datasheet SPCM-AQRH-16 0.18 mm 25 c/s 65% 40M c/s 22 ns 10 ns Datasheet SPCM-AQRH-XX-TR 0.18 mm 100-1500 c/s 65% 40M c/s 22 ns 10 ns Datasheet SPCM-NIR-XX 0.18 mm 100-1500 c/s 75% 40M c/s 22 ns 10 ns Datasheet SPCM-AQ4C fibered 500 c/s 60% >2M/channel c/s 50 ns 30 ns Datasheet C30902SH-TC 0.475 mm 2500 c/s >5% - - - - C30902SH-DTC 0.475 mm 350 c/s >5% - - - - Please note that Excelitas products are available from us only in Denmark, Finland, Iceland, Norway, and Sweden. 

12, 16 Channels; 9-24 VDC; 1,000 mA Per Channel; Interface USB, RS232; Current Resolution 1, 5 mA Mightex’s SLC-Series of universal USB/RS232 LED controllers feature 12 or 16 computer-controlled output channels and are designed to drive a broad range of LED light sources with output currents up to 1,000 mA. While standard models provide 5 mA current resolution, high-precision variants with 1 mA current resolution are also available. Each unit comes with a powerful PC-based software with a user-friendly GUI, which enables users to drive LEDs without the need to write any code. A full-featured SDK is provided, in order for users to write their own software and to integrate Mightex’s LED controllers into their own systems. Furthermore, the drivers have a built-in protection feature, allowing users to limit LED driving current and voltage. Each of the 12 or 16 channels can be individually configured to work under one of the following two modes: Normal Mode (or DC Mode): The output current is a constant, which can be adjusted (using software) from 0 to 1,000 mA, through the USB or RS232 interface Strobe Mode: A pulse-width-modulated (or PWM) periodic strobe pattern is output from the channel, which can be turned on by a software trigger. The strobe pattern may last indefinitely or for a preset number of cycles. The frequency of the PWM strobe can be up to 500 Hz. In addition, each channel can be individually disabled and enabled. No voltage or current is output from a disabled channel. Mightex’s SLC-Series of universal USB/RS232 LED controllers currently include eight models in total:   # of Channels Current Resolution Interface SLC-CA12-U 12 5 mA USB SLC-CA12-S 12 5 mA RS232 SLC-CA16-U 16 5 mA USB SLC-CA16-S 16 5 mA RS232 SLC-MA12-U 12   USB SLC-MA12-S 12   RS232 SLC-MA16-U 16   USB SLC-MA16-S 16   RS232   Key Features: Number of Channels: 12, 16 Power Supply: 9 to 24 VDC Per Channel Driving Current: Up to 1,000 mA Current Resolution: 1, 5 mA Computer-controlled: USB or RS232 Interface Dual Control Modes: DC and Strobe Universal – Suitable for Any LED Capable of Driving Variable Loads User-friendly Application Software With GUI Full-featured SDK Applications: Machine Vision; Displays; Microscopy; Semiconductor Equipment; Testing Instruments; Medical Instruments; Lighting