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Proceedings Paper

New modulation scheme for coherent lightwave communication: Direct-Modulation PSK
Author(s): Takao Naito; Terumi Chikama; Hideo Kuwahara
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Paper Abstract

We propose an optical PSK modulation scheme achieved by direct modulation of a laser diode with a wide flat FM response. We call it Direct-Modulation PSK (DM-PSK). We performed 4-Gb/s DM-PSK and CP-FSK transmission experiments at 135 un over 233 km of conventional 13-. un zero-dispersion fiber. The receiver sensitivity degradation due to chromatic dispersion was 0. 7 dB for DM-PSK smaller than that of 2. 5 dB for CP-FSK.

Paper Details

Date Published: 1 January 1991
PDF: 8 pages
Proc. SPIE 1372, Coherent Lightwave Communications: Fifth in a Series, (1 January 1991); doi: 10.1117/12.24921
Show Author Affiliations
Takao Naito, Fujitsu Labs. Ltd. (Japan)
Terumi Chikama, Fujitsu Labs. Ltd. (Japan)
Hideo Kuwahara, Fujitsu Labs. Ltd. (Japan)

Published in SPIE Proceedings Vol. 1372:
Coherent Lightwave Communications: Fifth in a Series
Harish R. Sunak; Roger C. Steele, Editor(s)

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