Dispersion-compensated Raman optical fiber amplifier

Details Dispersion-compensated Raman optical fiber amplifier Dispersion-compensated Raman optical fiber amplifier

2005-05-24

2005-05-24

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Dispersion compensation

Reexamination Certificate

active

06898003

ABSTRACT:
Disclosed is a dispersion-compensating, Raman optical fiber amplifier used in an optical communications system of the type having an optical transmission block for transmitting wavelength division multiplexed optical signals through a fiber and an optical receiving block for receiving the optical signals through the fiber. The inventive amplifier includes: a circulator for outputting optical signals that are inputted through a first end connected to the fiber to a second end and for outputting optical signals that are reflected through the second end to a third end connected to the fiber; a dispersion-compensating fiber for compensating optical signals passing therethrough and for outputting optical signals after performing a Raman amplification; a pumping light source for pumping the dispersion-compensating fiber and for outputting a pumping light having a designated wavelength; a wavelength selective coupler for outputting the pumping light to the dispersion-compensating fiber; and, a reflector for reflecting the Raman pumped optical signals and for reflecting the optical signals back into the dispersion-compensating fiber.

REFERENCES:
patent: 5404413 (1995-04-01), Delavaux et al.
patent: 5596448 (1997-01-01), Onaka et al.
patent: 5598294 (1997-01-01), Uno et al.
patent: 6785043 (2004-08-01), Hwang et al.
patent: 001339178 (2003-08-01), None

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