Optical communication systems using raman repeaters and componen

Details Optical communication systems using raman repeaters and componen Optical communication systems using raman repeaters and componen

1983-09-28

1986-10-14

Sikes, William L.

Multiplex communications

Wide area network

Packet switching

350 9616, 350 9630, 350 9632, 350 9633, 370 1, G02B 642, G02B 626, G02B 628

Patent

active

046168982

ABSTRACT:
An optical fiber communication system for transmitting information-bearing optical signals over an optical fiber transmission line includes a signal generator coupled to the transmission line for introducing information-bearing optical signals thereonto, preferably as wavelength modulated signals, and one or more optical amplifiers for periodically, collectively amplifying the transmitted signals to overcome the effects of attenuation. Wavelength modulation is achieved by altering the resonant characteristics of an optical resonator, optically coupled to a gain medium so as to provide an output that varies between a first and second wavelength. The optical amplification is achieved by injecting, preferably via lateral optical fiber couplings, pumping beams into the optical fiber so as to effect an increase in the amplitude of the information-bearing signals by stimulated Raman scattering.

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