Negative Feedback Avalanche Diode (NFAD) PNA-20X Introduced

Princeton Lightwave's negative feedback avalanche diode (NFAD) is a new type of photon-counting detector consisting of InGaAs/InP avalanche diodes with monolithically integrated negative feedback elements. 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-in-class performance of PLI's single photon avalanche diode 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 properties. These detectors also have fast response coupled with excellent timing 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.

NFADs provide photon counting operation with just a simple dc bias voltage using a bias tee. They differ from conventional single photon avalanche diodes in that they have no other control circuitry requirements and are ideal for applications in which ease-of-use is a priority.

Please contact Princeton Lightwave for additional specifications and pricing.

SOURCE: Princeton Lightwave