Multiple order Raman amplifier

Details Multiple order Raman amplifier Multiple order Raman amplifier

2007-02-13

2007-02-13

Keith, Jack (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

C359S341320

Reexamination Certificate

active

10951599

ABSTRACT:
A Raman amplifier for use in an optical fiber communication system with dispersion compensation has a first order Raman pump source and a second order Raman pump source both coupled to the input ports of a four-port optical coupler having two input ports and two output ports. One output port is connected to an optical fiber length to inject a pump light signal into the fiber length for second-order Raman amplification and the other output port is connected to a dispersion compensating fiber.

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Chestnut D A et al: “Copropagating and Counterpropagating Pumps in Second-Order-Pumped Discrete Fiber Raman Amplifiers” Optics Letters, Optical Society of America, Washington, US, vol. 27, No. 19, Oct. 1, 2002, pp. 1708-1710.

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