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Proceedings Paper

Semiconductor lasers for free-space communication
Author(s): GuiFen Chen; FuChang Yin
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Paper Abstract

Free space lasercomm technology is one of the key techlonogies for future space base establishments. High power semiconductor lasers are the most promising devices for free space communication. Semiconductor lasers at 800 and 1550nm band are good candidates with small size, low weight and high efficiency. Used as the optical source demans the wavelength suited for atmosphere low loss window super high- power output . narrow beamwidth and high-data-rate. One transmitter approach is to use erbium doped fiber amplifier (EDFA) to amplify the optical signal from a directly modulated 1550 nm DFB laser at 2.5GB/s. Recent progress of the semiconductor laser diodes for free space lasercomm is described in this paper. Studies on the spectrum and the noise of EDFA ,a rough comparision of laser communication schemes at different wavelength bands and key devices . technologies of proposed laser communication in this paper.

Paper Details

Date Published: 5 September 2002
PDF: 3 pages
Proc. SPIE 4913, Semiconductor Lasers and Applications, (5 September 2002); doi: 10.1117/12.482229
Show Author Affiliations
GuiFen Chen, Changchun Institute of Optics, Fine Mechanics and Physics (China)
FuChang Yin, Changchun Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 4913:
Semiconductor Lasers and Applications
Yi Luo; Yoshiaki Nakano, Editor(s)

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