20 April 1995 Combined FEC-, line-, and syncbit-coding scheme for a high-sensitive and low-complexity optical PSK-homodyne system
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Proceedings Volume 2381, Free-Space Laser Communication Technologies VII; (1995); doi: 10.1117/12.207405
Event: Photonics West '95, 1995, San Jose, CA, United States
Abstract
A new combined modulation and coding scheme for optical PSK-homodyne transmission is proposed. The new system is designed with scope to the realization of a very compact and high sensitive coherent PSK homodyne system with considerable small hardware complexity. This is achieved by using a combined coding scheme for synchronization information (syncbit method), spectral shaping and forward error correction. Applications of this technique could be in the future small and lightweight optical terminals for space communications, but also possibly in the future coherent optical FDMA-fiber networks. Without using the syncbit- coding option, this method is also very well suited for optical direct detection schemes, in which an optimal combination of line- and channel coding is needed.
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Christoph Rapp, Bernhard Wandernoth, "Combined FEC-, line-, and syncbit-coding scheme for a high-sensitive and low-complexity optical PSK-homodyne system", Proc. SPIE 2381, Free-Space Laser Communication Technologies VII, (20 April 1995); doi: 10.1117/12.207405; https://doi.org/10.1117/12.207405
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KEYWORDS
Forward error correction

Receivers

Homodyne detection

Phase shift keying

Telecommunications

Clocks

Oscillators

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