L-band optical amplifier

Details L-band optical amplifier L-band optical amplifier

2005-08-30

2005-08-30

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S347000

Reexamination Certificate

active

06937388

ABSTRACT:
Disclosed is an L-band optical amplifier for amplifying optical signals with the wavelength band of the L-band. The L-band optical amplifier comprises an optical-amplifying section for emitting spontaneous emission and for amplifying the optical signals by pumping of the spontaneous emission, a mirror for reflecting the optical signals amplified by the optical-amplifying section to re-enter back to the optical-amplifying section, and a feedback loop connected with both terminals of the optical-amplifying section for causing spontaneous emission emitted from the optical-amplifying section to be fed back to the optical-amplifying section.

REFERENCES:
patent: 6404539 (2002-06-01), Kotrotsios et al.
patent: 6501873 (2002-12-01), Moon et al.
patent: 6570701 (2003-05-01), Hwang et al.
patent: 6731426 (2004-05-01), Yeniay et al.
patent: 6867910 (2005-03-01), Takei et al.
patent: 2004193613 (2004-07-01), None

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