Optical communication system using optical amplifiers with gain

Details Optical communication system using optical amplifiers with gain Optical communication system using optical amplifiers with gain

1997-05-20

1999-12-28

Mullen, Thomas

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

372 27, H04B 1000

Patent

active

060089229

ABSTRACT:
In an optical communication system using polarization scrambling of the transmitted optical signal, the scrambling causes the polarization vector to rotate. The scrambler includes a modulator to modulate either the phase or the wavelength of the optical signal. A polarization dispersion device converts the phase modulation or wavelength modulation into polarization modulation. This polarization dispersion device consists of the optical communication fibers on the output side of the modulator.

REFERENCES:
patent: 5361270 (1994-11-01), Heismann
M. Santoro et al, "Polarization Scrambling Using a Short Piece of High-Birefringence Optical Fiber and a Multifrequency Laser Diode", Journal of Lightwave Technology, vol. 12, No. 2, Feb. 1994, pp. 288-293.
F. Heismann, "Fast Polarization Controllers & Scramblers for High-Speed Lightwave Systems", Optical Fiber Communication, Summaries of Papers Presented at the Conference OFC '95, San Diego, Feb. 26-Mar. 3, 1995, vol. 8, Feb. 26, 1995, Institute of Electrical & Electronics Engineers--pp. 11-13.
Patent Abstracts of Japan, vol. 016, No. 580 Dec. 18, 1992, corresponding to JP 04 229842 (Fujitsu).

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