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Proceedings Paper

Ultrahigh-efficiency microwave signal transmission using tandem-contact single quantum well GaAlAs lasers
Author(s): Nan Moore Froberg; Kam Y. Lau
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Paper Abstract

Recent advances in high speed semiconductor lasers[l] have made possible the use of optical transport and control in microwave systems such as phased arrayed radar[21, various microwave subcarrier multiplexed networks scheines[3J as well as cable television distribution[4). For a typical laser with a differential efficiency of 0.4mW/mA and emitting xmw of CW power, a microwave power of (-8+2Olog10x)dBm is required in a 50k) system for full optical modulation. This is much higher than typical received signal powers from microwave antennae, and considerable cost is incurred in providing the necessary amplification at the undersirable location of an antenna horn.

Paper Details

Date Published: 1 June 1990
PDF: 4 pages
Proc. SPIE 1217, Optoelectronic Signal Processing for Phased-Array Antennas II, (1 June 1990); doi: 10.1117/12.18138
Show Author Affiliations
Nan Moore Froberg, Columbia Univ. (United States)
Kam Y. Lau, Columbia Univ. (United States)

Published in SPIE Proceedings Vol. 1217:
Optoelectronic Signal Processing for Phased-Array Antennas II
Brian M. Hendrickson; Gerhard A. Koepf, Editor(s)

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