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Title:
OPTICAL FIBER TYPE EXCITATION COMBINER, OPTICAL FIBER AMPLIFIER AND OPTICAL FIBER LASER
Document Type and Number:
Japanese Patent JP2007163650
Kind Code:
A
Abstract:

To provide an optical fiber type excitation combiner that achieves higher excitation power density and high output energy of signal light even when five or less multi-mode high output laser light sources are used.

The optical fiber type excitation combiner obtained by combining a plurality of multi-mode optical fibers and one single-mode optical fiber is characterized in that the number of the multi-mode optical fibers is 3 to 5 and that the single-mode optical fiber used has a clad outer diameter determined according to the number of multi-mode optical fibers so as to make a closest packed structure of the optical fibers.


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Inventors:
SUGIMOTO AKIRA
SHIMADA NORIAKI
SAKAI TETSUYA
Application Number:
JP2005357553A
Publication Date:
June 28, 2007
Filing Date:
December 12, 2005
Export Citation:
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Assignee:
FUJIKURA LTD
International Classes:
G02B6/04; G02B6/255; H01S3/06; H01S3/10
Domestic Patent References:
JPH1172629A1999-03-16
JP2005019540A2005-01-20
JPH04338902A1992-11-26
JP2000208842A2000-07-28
JP2001230476A2001-08-24
Foreign References:
WO2005029146A12005-03-31
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama



 
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