Wideband optical fiber amplifier

Details Wideband optical fiber amplifier Wideband optical fiber amplifier

2006-06-27

2006-06-27

Hughes, Deandra M. (Department: 3663)

Optical: systems and elements

Optical amplifier

Beam combination or separation

C359S341320

Reexamination Certificate

active

07068425

ABSTRACT:
Disclosed wideband optical fiber amplifier amplifies and outputs wideband optical signal containing C-band and L-band optical signals. The amplifier includes: a first amplification section amplifying the wideband optical signals; a second amplification section amplifying the separated L-band optical signals amplified by the first amplification section; an optical signal coupler combining and outputting the optical signals amplified by the first and second amplification sections; and an optical circulator. A first port of the optical circulator inputs the wideband optical signals from the optical communication network; a second port outputs the inputted wideband optical signals and inputs spontaneous emissions generated from the first amplification section; a third port provides the spontaneous emissions to the second amplification section while inputting the L-band optical signals amplified by the second amplification section; and a fourth port outputs L-band optical signals that were inputted to the third port to the optical signal coupler.

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