Invention Grant
US09444221B2 Laser apparatus and method to re-tune emission wavelength tunable LD
有权
激光装置和重新调谐发射波长可调LD的方法
- Patent Title: Laser apparatus and method to re-tune emission wavelength tunable LD
- Patent Title (中): 激光装置和重新调谐发射波长可调LD的方法
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Application No.: US14790667Application Date: 2015-07-02
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Publication No.: US09444221B2Publication Date: 2016-09-13
- Inventor: Katsumi Uesaka , Eiichi Banno , Hajime Shoji , Hiroyuki Matsuura , Haruhiko Kuwatsuka , Ken Tanizawa , Shu Namiki
- Applicant: Sumitomo Electric Industries, Ltd. , National Institute of Advanced Industrial Science and Technology
- Applicant Address: JP Osaka-shi JP Tokyo
- Assignee: Sumitomo Electric Industries, Ltd.,National Institute of Advanced Industrial Science and Technology
- Current Assignee: Sumitomo Electric Industries, Ltd.,National Institute of Advanced Industrial Science and Technology
- Current Assignee Address: JP Osaka-shi JP Tokyo
- Agency: Venable LLP
- Agent Michael A. Sartori
- Priority: JP2014-138000 20140703
- Main IPC: H01S3/10
- IPC: H01S3/10 ; H01S5/0687 ; H01S5/06 ; H01S5/0683 ; H01S5/125 ; H01S5/12 ; H01S5/0625 ; H01S5/024 ; H01S5/026
Abstract:
A laser apparatus for tuning the emission wavelength of a wavelength tunable laser diode will be described. The apparatus includes a tunable LD with heaters to tune the emission wavelength of the tunable LD, and a controller to control the power supplied to the heaters. A feature of the laser apparatus is that the controller supplies pre-emphasis power to the heaters before the supplement of the power corresponding to the re-tuned emission wavelength to accelerate the stability of the temperature of the heaters.
Public/Granted literature
- US20160006212A1 LASER APPARATUS AND METHOD TO RE-TUNE EMISSION WAVELENGTH OF WAVELENGTH TUNABLE LD Public/Granted day:2016-01-07
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