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Patent Searching and Data


Title:
光増幅器
Document Type and Number:
Japanese Patent JP2013530521
Kind Code:
A
Abstract:
An optical amplifier system is provided which comprises first and second optical amplifiers (1, 2) for amplifying optical signals in a fibre optic communications link and a common pump (3) for optically pumping both the first amplifier (1) and the second amplifier (2) to effect such amplification. There is also provided an optical switch (6) for providing an optical path between the pump and the first amplifier in a first switching state and an optical path between the pump and the second amplifier in a second switching state to enable pumping of the first and second amplifiers by the pump sequentially. Advantageously this arrangement provides high accuracy to the outputs (4, 5) of the pump (3) and reduces low power pump noise.

Inventors:
Ian Peter McLean
Nadham Kadham Zaire
Barry Fringham
Jonathan Stuart Drake
Application Number:
JP2013509624A
Publication Date:
July 25, 2013
Filing Date:
May 11, 2011
Export Citation:
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Assignee:
Oclaro Technology Limited
International Classes:
H01S3/067; H01S3/10; H04B10/294
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro