Invention Grant
- Patent Title: Split control of front and rear DBR grating portions
- Patent Title (中): 分离控制前后DBR光栅部分
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Application No.: US12423222Application Date: 2009-04-14
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Publication No.: US08121169B2Publication Date: 2012-02-21
- Inventor: Hong Ky Nguyen , Chung-En Zah
- Applicant: Hong Ky Nguyen , Chung-En Zah
- Applicant Address: US NY Corning
- Assignee: Corning Incorporated
- Current Assignee: Corning Incorporated
- Current Assignee Address: US NY Corning
- Agent Kwadjo Adusei-Poku
- Main IPC: H01S3/097
- IPC: H01S3/097
Abstract:
A method is provided for controlling a DBR laser diode wherein front and rear DBR section heating elements are controlled such that the reflectivity of the rear grating portion of the DBR section is lower than the reflectivity of the front grating portion of the DBR section. In this manner, lasing mode selection is dominated by the front grating portion and the front DBR section heating element can be controlled for wavelength tuning. In addition, the rear DBR section heating element can be controlled to narrow the spectral bandwidth of the DBR reflection spectra. Additional embodiments are disclosed and claimed.
Public/Granted literature
- US20100260215A1 Split Control Of Front And Rear DBR Grating Portions Public/Granted day:2010-10-14
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