Article comprising a counter-pumped optical fiber raman amplifie

Details Article comprising a counter-pumped optical fiber raman amplifie Article comprising a counter-pumped optical fiber raman amplifie

1996-02-12

1997-04-22

Scott, Jr., Leon

Coherent light generators

Raman laser

372 6, 372703, 372 69, H01S 330

Patent

active

056235089

ABSTRACT:
A low noise optical fiber Raman amplifier with integral Raman laser (FRA) is disclosed. The FRA typically comprises a fiber ring with at least two amplifier stages, with strictly counter-propagating pump radiation. Relatively short wavelength (e.g., 1060 nm) pump power is provided to the Raman laser portion of the fiber ring. Appropriately selected and placed Bragg gratings provide one or more optical cavities in the fiber ring, such that the input pump radiation is converted to the desired amplifier pump radiation (e.g., 1240 nm, suitable for amplification of 1310 nm signal radiation). The FRA can, for instance, advantageously serve as power amplifier in digital or analog fiber communication systems, or it can serve as pre-amplifier or in-line amplifier.

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