Invention Grant
US08902938B2 Method to tune emission wavelength of wavelength tunable laser diode
有权
调整波长可调激光二极管发射波长的方法
- Patent Title: Method to tune emission wavelength of wavelength tunable laser diode
- Patent Title (中): 调整波长可调激光二极管发射波长的方法
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Application No.: US13935185Application Date: 2013-07-03
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Publication No.: US08902938B2Publication Date: 2014-12-02
- Inventor: Tomoko Miura
- Applicant: Sumitomo Electric Industries, Ltd.
- Applicant Address: JP Osaka-shi
- Assignee: Sumitomo Electric Industries, Ltd.
- Current Assignee: Sumitomo Electric Industries, Ltd.
- Current Assignee Address: JP Osaka-shi
- Agency: Venable LLP
- Agent Michael A. Sartori
- Priority: JP2012-150593 20120704
- Main IPC: H01S3/10
- IPC: H01S3/10 ; H01S5/06 ; H01S5/0625 ; H01S5/024 ; H01S5/026 ; H01S5/0687 ; H01S5/12
Abstract:
A method to tune an emission wavelength of a wavelength tunable LD is disclosed. The wavelength tunable LD includes two regions each providing micro heaters to modify the refractive index of micro regions provided with power. The method periodically detects a difference between the emission wavelength and the target wavelength. This wavelength difference is converted into power next supplied to respective micro heaters independently.
Public/Granted literature
- US20140010249A1 METHOD TO TUNE EMISSION WAVELENGTH OF WAVELENGTH TUNABLE LASER DIODE Public/Granted day:2014-01-09
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