Invention Grant
- Patent Title: Laser light emitting device and method of manufacturing the same, and fiber laser apparatus using the same
- Patent Title (中): 激光发光装置及其制造方法以及使用其的光纤激光装置
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Application No.: US13453166Application Date: 2012-04-23
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Publication No.: US08422520B2Publication Date: 2013-04-16
- Inventor: Shinichi Sakamoto
- Applicant: Shinichi Sakamoto
- Applicant Address: JP Tokyo
- Assignee: Fujikura Ltd.
- Current Assignee: Fujikura Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2009-244810 20091023
- Main IPC: H01S3/30
- IPC: H01S3/30 ; H01S3/08
Abstract:
The laser light emitting device includes a glass rod having an input end and an output end. The glass rod has a core provided along the central axis thereof and a cladding covering the core. The refractive index of the core on the side of the input end is higher than the refractive index of the cladding. A value given through subtraction of the refractive index of the cladding from the refractive index of the core on the side of the output end is smaller than a value given through subtraction of the refractive index of the cladding from the refractive index of the core on the side of the input end.
Public/Granted literature
Information query
