Distributed feedback light waveguide laser |
Title： |
| Distributed feedback light waveguide laser |
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Application Number： |
200410042789 |
Application Date： |
2004/05/28 |
Announcement Date： |
2005/02/23 |
Pub. Date： |
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Publication Number： |
1585213 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H01S 3/063, H01S 3/08, H01S 3/0941, H01S 3/16, H01S 3/067 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Chen Xiangfei, Jiang Dianjie, Dai Yitang |
Key Words： |
Distributed, feedback, light waveguide, laser |
Abstract： |
In this invention, in the minus or plus 15%area from the center of the sampling Prague grating which is etched on the light waveguide, on of the sampling period is jumping, while other sampling period is keeping unchanged. The jumped period is 1.4-1.6 or 0.4-0.6 times of the original. The sampling Prague grating makes the respective reflecting peak generate similar slit of the normal grating. The period of this grating possesses the property of linear chirp. When the period jumped to 1.5 or 0.5 times of the original, the -1 level chirp reflecting peak is about to zero. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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