The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2010
Filed:
Dec. 07, 2007
Sugio Wako, Ueda, JP;
Atsushi Koyama, Ueda, JP;
Xiongfei Zhang, Ueda, JP;
Hiroshi Matsuura, Chiyoda-ku, JP;
Satoru Abe, Chiyoda-ku, JP;
Takeshi Takagi, Chiyoda-ku, JP;
Sugio Wako, Ueda, JP;
Atsushi Koyama, Ueda, JP;
Xiongfei Zhang, Ueda, JP;
Hiroshi Matsuura, Chiyoda-ku, JP;
Satoru Abe, Chiyoda-ku, JP;
Takeshi Takagi, Chiyoda-ku, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Totoku Electric Co., Ltd., Tokyo, JP;
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.