Semiconductor laser driving current control method and multi-mode working driving power supply |
Title： |
| Semiconductor laser driving current control method and multi-mode working driving power supply |
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Application Number： |
200510011124 |
Application Date： |
2005/01/07 |
Announcement Date： |
2005/08/10 |
Pub. Date： |
2007/08/22 |
Publication Number： |
1652419 |
Announcement Number： |
1333499 |
Grant Date： |
2007-8-22 |
Granted Pub. Date： |
2007-8-22 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H01S 5/042 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Gong Mali, Pan Weijun, Guo Yunxiao |
Key Words： |
Semiconductor laser, driving current, control, multi-mode working, driving power supply |
Abstract： |
Driving current value needed is obtained through experiment testing calibration method for semiconductor laser to reach certain output power under different temperatures so as to get coincidence relation between temperature and driving current value. The said coincidence relation in list form is inputted into microprocessor by using keyboard input unit. Based on detected operating temperature of LD, changing driving current compensates variation of output power caused by changing temperature in order to realize stable LD output power. The invention also discloses driving power for semiconductor laser operated based on multiple modes in order to realize the disclosed method. The invention is applicable to diversified areas of semiconductor laser being as light source or pump source. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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