Optical amplifier and optical transmission apparatus

Details Optical amplifier and optical transmission apparatus Optical amplifier and optical transmission apparatus

1995-03-28

1997-10-21

Hellner, Mark

Optical: systems and elements

Optical amplifier

Optical fiber

359160, 359177, H01S 1300

Patent

active

056802463

ABSTRACT:
The optical amplifier includes a doped fiber doped with a rare earth element, a pumping light source, means for introducing signal light and pumping light into the doped fiber, detection means for detecting whether or not amplified signal light is included in light outputted from the doped fiber, and means for decreasing the intensity of the pumping light when it is detected that amplified signal light is not included. It can be possible to eliminate an influence of an optical surge arising from a characteristic of the doped fiber.

REFERENCES:
patent: 5268786 (1993-12-01), Matsushita et al.
patent: 5374973 (1994-12-01), Maxham et al.
patent: 5379195 (1995-01-01), Epstein
patent: 5428471 (1995-06-01), McDermott
patent: 5442479 (1995-08-01), Bulow et al.
patent: 5502810 (1996-03-01), Watanabe
patent: 5517351 (1996-05-01), Hatakeyama
patent: 5521752 (1996-05-01), Heidemann et al.

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