Raman optical fiber amplifier using erbium doped fiber

Details Raman optical fiber amplifier using erbium doped fiber Raman optical fiber amplifier using erbium doped fiber

2006-08-22

2006-08-22

Keith, Jack (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

C359S341500

Reexamination Certificate

active

07095552

ABSTRACT:
A Raman optical-fiber amplifier used in a wavelength-division-multiplexing optical communication system is provided. The inventive amplifier includes an optical transmitter for transmitting wavelength-division-multiplexed optical signals through an optical fiber and an optical receiver for receiving the optical signals through the optical fiber, and further comprises an erbium-doped fiber which Raman-amplifies and outputs optical signals inputted through the first end of the erbium-doped fiber amplifier connected with the optical fiber; a pumping source which outputs pump light with a predetermined wavelength so as to Raman-pump the erbium-doped fiber; and, a wavelength-selective coupler which outputs the pump light to be introduced into the erbium-doped fiber.

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Namiki, S. and Emori, Y., “Ultrabroad-band Raman amplifiers pumped and gain-equalized by wavelength-division-multiplexed high-power laser diodes”, IEEE Journal on selected topics in Quantum Electronics, vol. 7, No. 1, (Jan. 2001).
Agrawal, G. V., Fiber Optic Communication Systems, 3rd ed. , p. 422 (May, 2002).

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