Single Photon Detectors

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3D LADAR	InGaAs APDs	Single Photon Detectors	InGaAs Photodiode	Laser Diodes
Princeton Lightwave Geiger-mode avalanche photodiode (GmAPD) is a focal plane array (FPA) consisting of an InP/InGaAsP GmAPD detector array flip-chip bonded to a custom CMOS readout integrated circuit (ROIC). This single-photon imaging sensor is designed for three-dimensional laser radar imaging systems with time-of-flight information captured at every pixel in the array. Learn More Our linear mode avalanche photodiode offer industry-leading performance in terms of low noise, sensitivity and reliability. It leverages PLI's proprietary high performance, planar InP-InGaAs APD device design, and high reliability packaging platforms. Discrete InGaAs APDs Large Area Avalanche Photodiode APD-TIA Receivers Industry-leading performance in terms of low noise, sensitivity and reliability. GmAPDs InGaAs/InP avalanche photodetectors designed specifically for single photon counting applications. Learn More Single Photon Receiver Complete solutions for single photon counting applications in the 920 to 1600nm range. Learn More Negative Feedback APDs A photon-counting device consisting of InGaAs/InP avalanche diodes with monolithically integrated negative feedback. Learn More Princeton Lightwave linear and 2D photodiode array offer low noise, high sensitivity detection at SWIR wavelengths for imaging and sensing applications. Dual Band Camera PLI-CLD-CL Dual Band Camera Focal Plane Array 640x512 Pixel PIN Photodiode Focal Plane Array (FPA) Linear Arrays PDA 640 Small Form Factor (SFF) Detector Array PDA 640 Detector Array Princeton Lightwave high-performance InP based laser diodes cover infrared wavelengths from 1.3 to 2 µm. Our extensive integration technologies enable solutions ranging from chips and laser bars to turn-key sub-systems for defense, instrumentation, optical communications, medical and industrial applications. Multimode A series of high power broad contact stripe lasers for applications in the 1320 to 1950 nm wavelength band. Learn More Single Mode An advanced MQW chip design that delivers very high power for fibered couple or free space applications. Learn More Integrated Laser Modules High optical power output ideal for medical, defense, material processing and solid state laser pumping applications. Learn More Superluminescent Diodes Wide bandwidth, 4 μm ridge, angled chip, in a GaAs structure for 820 nm. Learn More

Single Photon Detectors

Princeton Lightwave designs and manufactures the highest performance Single Photon Avalanche Diodes (SPADs) available for single photon detection in the short-wave infrared (SWIR) wavelength range from 0.9 to 1.6 µm. PLI’s SPADs have been optimized for Geiger-mode operation, which provides a macroscopic avalanche current pulse in response to just a single photon. When combined with appropriate bias and pulse discrimination circuitry, the SPADs provide high photon detection efficiency, very low dark count rates, and high photon counting repetition rates. These detectors are available in a variety of product formats, including modules providing free-space coupling, fiber-coupling, integrated thermoelectric cooling (TEC), and turnkey receiver instruments.

GmAPDs

The Princeton Lightwave SPAD is an InGaAs/InP avalanche photodetector designed specifically for single photon counting applications. The device is intended for use at voltage biases above the Break down voltage (in the so-called “Geiger mode”) so that a single photon incident on the detector will give rise to a macroscopic current pulse.

1550nm Gm APDs

Combined with appropriate pulse detection circuitry, this device allows for the detection of single photons in the wavelength range from 0.95 to 1.6 µm.

1064nm Gm APDs

Combined with appropriate pulse detection circuitry, this device allows for the detection of single photons in the wavelength range from 0.95 to 1.1 µm.

Negative Feedback APDs

Princeton Lightwave’s PNA-20X series NFAD is a new type of photon-counting device consisting of InGaAs/InP avalanche diodes with monolithically integrated negative feedback. PLI’s patented approach to the integration of negative feedback resistors provides stable high-performance single photon response in Geiger mode operation. Leveraging the best-inclass performance of PLI’s single photon avalanche diode (SPAD) technology, PLI’s NFAD has excellent photon-counting capability in the shortwave infrared (SWIR) band, with high internal gain (105 to 106) and very consistent pulse response distributions. These detectors also have fast response coupled with excellent time resolution. Devices with single discrete active regions provide low dark count rate, and devices based on multiple connected active regions provide large detection area and photon number resolution.

Products in this category:

PNA-20X Negative Feedback Avalanche Diodes (NFADs)

Single Photon Receiver

Princeton Lightwave’s line of Single Photon Benchtop Receivers offer complete solutions for single photon counting applications in the 920 to 1600nm range. The receiver integrates an InGaAs/InP Single Photon Avalanche diode (SPAD) with all the necessary bias and control electronics. The InGaAs/InP SPAD has been designed specifically for single photon counting to provide high detection efficiency and low dark count rate. The unit’s electronics utilize a patented technique to improve system performance. The front panel of the unit offers full control of settings and operation. It displays the number of photons detected in a selected interval as well as diagnostic information. The receiver can also be controlled with simple commands using a PC.