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InP-based Single Photon Detectors with Active Negative Feedback

Award Information

Department of Defense
Defense Advanced Research Projects Agency
Award ID:
Program Year/Program:
2009 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Princeton Lightwave, Inc.
2555 Route 130 South, Suite 1 Cranbury, NJ -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2009
Title: InP-based Single Photon Detectors with Active Negative Feedback
Agency / Branch: DOD / DARPA
Contract: W31P4Q-09-C-0285
Award Amount: $98,854.00


From the perspective of performance, reliability, and cost, the most practical photodetector available today with single photon sensitivity between 1.0 and 1.6 ?m is the InGaAs/InP single photon avalanche diode (SPAD). However, even the best InP-based SPADs have photon counting rate limitations of ~1 - 10 MHz. For applications ranging from quantum information science to covert short-wave infrared imaging, single photon detectors with much faster counting rates in the range of 100 MHz - 1 GHz will be essential. A primary shortcoming of conventional SPADs is the positive feedback inherent in their avalanche dynamics and performance degradation associated with it. We propose to radically improve upon these structures by monolithically integrating negative feedback elements to create negative feedback avalanche diodes (NFADs) with self-limiting avalanches exhibiting highly deterministic gain values. Self-limited avalanches will greatly reduce latency problems caused by afterpulsing, offering the potential for repetition rates exceeding 100 MHz, and highly deterministic gains will provide much lower excess noise. NFAD device operation will also be greatly simplified relative to SPADs since NFADs can be operated with just a single dc bias. We will investigate several approaches towards incorporating negative feedback using active elements and compare these approaches with on-going work that entails the use of passive negative feedback. Long-term prospects include the increase of repetition rates beyond 1 GHz and the achieving of photon number resolution using multiplexed NFAD formats.

Principal Investigator:

Mark Itzler

Business Contact:

Bruce Nyman
VP System Solutions
Small Business Information at Submission:

2555 Route 130 South, Suite 1 Cranbury, NJ 08512

EIN/Tax ID: 223711457
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No