Title :
Thermal noise in optical fibers and its influence on long-distance coherent communication systems
Author :
Bløtekjær, Kjell
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Norwegian Inst. of Technol., Trondheim, Norway
fDate :
1/1/1992 12:00:00 AM
Abstract :
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
Keywords :
fluctuations; optical links; optical modulation; optical waveguide theory; phase shift keying; random noise; 10000 km; DPSK coherent fiber-optic communication systems; anisotropy; bit error rates; differential phase shift keying; elastooptic effect; light coherence; long-distance coherent communication systems; longitudinal phonons; optical fibers; optical mode field; phase noise; thermal fluctuations; thermal noise; thermal phase fluctuations; transmission distances; transverse phonons; Anisotropic magnetoresistance; Bit error rate; Differential quadrature phase shift keying; Fluctuations; Geometrical optics; Optical fiber communication; Optical fibers; Optical noise; Phase noise; Phonons;
Journal_Title :
Lightwave Technology, Journal of
