Invention Grant
US09360298B2 Surface emitting laser and optical coherence tomography measuring apparatus using the surface emitting laser
有权
表面发射激光器和使用表面发射激光器的光学相干断层扫描测量装置
- Patent Title: Surface emitting laser and optical coherence tomography measuring apparatus using the surface emitting laser
- Patent Title (中): 表面发射激光器和使用表面发射激光器的光学相干断层扫描测量装置
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Application No.: US14313567Application Date: 2014-06-24
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Publication No.: US09360298B2Publication Date: 2016-06-07
- Inventor: Yasuhiro Nagatomo
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc. IP Division
- Priority: JP2013-135559 20130627
- Main IPC: H01S3/08
- IPC: H01S3/08 ; G01B9/02 ; H01S5/14 ; H01S5/183 ; H01S5/022
Abstract:
A surface emitting laser operable to change a wavelength of emitted light includes a first reflecting mirror, a second reflecting mirror, wherein a cavity is formed between the first reflecting mirror and the second reflecting mirror along the optical axis of the surface emitting laser, an active layer formed within the cavity, a region formed within the cavity, and a movable part situated within the region, the movable part having a refractive index different from a refractive index of the region. The wavelength of emitted light is changeable by changing the position of the movable part along the direction of the optical axis in the region.
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