Ultrahigh-efficiency microwave signal transmission using tandem-contact single quantum well GaAlAs lasers

Nan Moore Froberg; Kam Y. Lau

doi:10.1117/12.18138

1 June 1990 Ultrahigh-efficiency microwave signal transmission using tandem-contact single quantum well GaAlAs lasers

Nan Moore Froberg, Kam Y. Lau

Proceedings Volume 1217, Optoelectronic Signal Processing for Phased-Array Antennas II; (1990) https://doi.org/10.1117/12.18138
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

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.

Citation Download Citation

Nan Moore Froberg and Kam Y. Lau "Ultrahigh-efficiency microwave signal transmission using tandem-contact single quantum well GaAlAs lasers", Proc. SPIE 1217, Optoelectronic Signal Processing for Phased-Array Antennas II, (1 June 1990); https://doi.org/10.1117/12.18138

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