PROPOSAL NUMBER: | 04 T4.02-9897 |
RESEARCH SUBTOPIC TITLE: | Space Science Sensors and Instruments |
PROPOSAL TITLE: | High-Performance, Radiation-Hard, 2-D, Near-Infrared, Avalanche Photodiode Arrays |
SMALL BUSINESS CONCERN (SBC) | RESEARCH INSTITUTION (RI) | ||
NAME: | AdTech Photonics, Inc. | NAME: | University of Maryland-Baltimore County (UMBC) |
ADDRESS: | 18007 Cortney Court | ADDRESS: | 1000 Hilltop Circle |
CITY: | Industry | CITY: | Baltimore |
STATE/ZIP: | CA91748-1203 | STATE/ZIP: | MD21250-0001 |
PHONE: | (626)581-3755 | PHONE: | (410)455-3272 |
PRINCIPAL INVESTIGATOR/PROJECT MANAGER
(Name, E-mail, Mail Address, City/State/Zip, Phone)
Xiucheng Wu
xiucheng.wu@atoptics.com
18007 Cortney Court
Industry, CA 91748-1203
(626)581-3755
TECHNICAL ABSTRACT (LIMIT 200 WORDS)
In this STTR project we will address the radiation hardness issues using radiation hard (RH) materials. We will based on the RH material to develop our photon counting APD device structure and grow and fabricate high-quality devices that can achieve high sensitivity, high uniformity, low dark counts, and fast and small after-pulse dark current. We will further utilize our high quality guard-ring and backside lens techniques to develop reliable, high uniformity, 2-D, APD arrays with near 90% fill-in factor for the detection area coverage.
POTENTIAL NASA COMMERCIAL APPLICATIONS (LIMIT 100 WORDS)
High performance avalanche photodiodes (APDs) and arrays in the 1064 and 1300-1550 nm wavelength ranges are very important components for lidar remote sensing applications and satellite-to-satellite or satellite-to-ground optical communications. 1064 nm Nd:YAG lasers are the most important and dominated laser sources for remote sensing. For the longer wavelength APD applications, eye-safe factors are 70 (1300nm) to 100 (1550 nm) times better than their counter parts working at the 850 nm wavelength regions.
POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (LIMIT 100 WORDS)
For the military and commercial applications, APD can be used for range finder systems (military and commercial), free-space optical communication systems, high-speed fiber optic receivers, ?etc. An APD receiver can have higher receiving sensitivity, which can increase the margin of system power budget and allow a better performance with lower cost. For example, it allows a longer distance in a range finder or a higher number of signal (fiber) splitting, in a fiber distribution system.