Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroshi Matsuura0
Sugio Wako0
Satoru Abe0
Xiongfei Zhang0
Takeshi Takagi0
Atsushi Koyama0
Date of Patent
September 21, 2010
0Patent Application Number
119526470
Date Filed
December 7, 2007
0Patent Primary Examiner
Patent abstract
A spatial coupling provided between an amplified-light waveguide and an output-light waveguide includes a wavelength selecting element that selectively transmits a light having a desired wavelength band out of a spontaneous emission light generated in the amplified-light waveguide and a lens unit that couples the spontaneous emission light to the wavelength selecting unit. An input-side light reflecting unit provided between a semiconductor pumping laser and the amplified-light waveguide and an output-side light reflecting unit formed on an output side of the spatial coupling unit form a laser resonator.
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