Thermal noise in optical fibers and its influence on long-distance coherent communication systems

The theory of phase noise caused by thermal fluctuations in an optical fiber is revised, accounting for both longitudinal and transverse phonons, and for the anisotropy of the elastooptic effect. A realistic optical mode field is accounted for. The theory is applied to calculations of bit error rate...

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Veröffentlicht in:	Journal of lightwave technology 1992-01, Vol.10 (1), p.36-41
1. Verfasser:	Blotekjaer, K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Anisotropic magnetoresistance Applied sciences Bit error rate Differential quadrature phase shift keying Exact sciences and technology Fluctuations Geometrical optics Optical fiber communication Optical fibers Optical noise Phase noise Phonons Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments)
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Beschreibung
Zusammenfassung:	The theory of phase noise caused by thermal fluctuations in an optical fiber is revised, accounting for both longitudinal and transverse phonons, and for the anisotropy of the elastooptic effect. A realistic optical mode field is accounted for. The theory is applied to calculations of bit error rates in DPSK coherent fiber-optic communication systems. Numerical results show that the thermal phase fluctuations are unimportant for transmission distances below 10000 km.< >
ISSN:	0733-8724 1558-2213
DOI:	10.1109/50.108733