发明授权
- 专利标题: Apparatus and method for stabilizing wavelength tunable laser
- 专利标题(中): 用于稳定波长可调激光器的装置和方法
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申请号: US13845602申请日: 2013-03-18
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公开(公告)号: US09088130B2公开(公告)日: 2015-07-21
- 发明人: Hong Sig Kim , Wang Yuhl Oh , Tae Hwan Kim , Jae Guyn Lim , Han Saem Cho
- 申请人: SAMSUNG ELECTRONICS CO., LTD. , Korea Advanced Institute of Science and Technology
- 申请人地址: KR Suwon-si
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Suwon-si
- 代理机构: NSIP Law
- 优先权: KR10-2012-0032589 20120329
- 主分类号: H01S5/068
- IPC分类号: H01S5/068 ; H01S5/0687 ; H01S5/14 ; H01S3/13 ; H01S3/137 ; H01S5/062
摘要:
An apparatus and method for stabilizing an output of a laser is provided. An optical amplifier oscillates light having a first wavelength band. A filter filters the light having the first wavelength band to output light having a second wavelength band narrower than the first wavelength band. The light having the second wavelength band may correspond to an output of a laser. To stabilize the wavelength center of the output laser, at least a portion of the light having the second wavelength band may be transferred to a fiber Bragg Grating (FBG) through a coupler. By performing feedback of a difference between the signal output from the FBG and a laser modulation signal, an offset corresponding to a lead zirconate titanate (PZT) operating parameter of a Fabry-Perot filter may be controlled to automatically stabilize the wavelength center.