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Proceedings Paper

Avalanche photodiodes for detection of eye-safe laser pulses
Author(s): Andrew T. Hunter
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Paper Abstract

Low noise, high speed laser detectors sensitive to eye-safe laser wavelengths (near 1.5 micrometer) are of great importance in next-generation laser rangefinders, or laser radar applications. Improved signal-to-noise performance, and thus improved range or decreased laser power, can be achieved through the use of avalanche photodiodes (APD) in place of unity gain PIN detectors. The noise behavior of the APD is crucial in determining the overall performance of these systems. We will discuss intrinsic and extrinsic limits to performance for several different APD material systems sensitive to eye-safe lasers, including a detailed comparison of HgCdTe, InGaAs, and several other material systems.

Paper Details

Date Published: 7 April 1999
PDF: 6 pages
Proc. SPIE 3629, Photodetectors: Materials and Devices IV, (7 April 1999); doi: 10.1117/12.344561
Show Author Affiliations
Andrew T. Hunter, HRL Labs. (United States)


Published in SPIE Proceedings Vol. 3629:
Photodetectors: Materials and Devices IV
Gail J. Brown; Manijeh Razeghi, Editor(s)

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