Double side band, carrier suppressed modulated coherent fiber op

Details Double side band, carrier suppressed modulated coherent fiber op Double side band, carrier suppressed modulated coherent fiber op

1995-01-10

2000-09-05

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359145, 359191, 359195, H04B 1012

Patent

active

061151629

ABSTRACT:
A system for conveying a signal by optical fiber may include a converter for converting a radio frequency signal to an optical frequency signal, the converter having an interferometer modulator for providing a carrier suppressed optical frequency signal having a sideband modulated by the radio frequency signal, an optical amplifier for amplifying the modulated sideband before transmission on an optical fiber by an amount that is greater than or approximates the transmission loss in the system, a local oscillator, a coupler, and detector for converting (superheterodyning) the modulated sideband from the optical fiber to a predetermined intermediate radio frequency.

REFERENCES:
patent: 5373383 (1994-12-01), LaGasse
patent: 5424863 (1995-06-01), Gertel
patent: 5526158 (1996-06-01), Lembo
patent: 5532857 (1996-07-01), Gertel et al.
Kwong et al., "Coherent Subcarrier Fiber-Optic Communication Systems With Phase-Noise Cancellation" IEEE Transactions on Communications, vol. 42, No. 6, Jun. 1994.

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