Self-compensating type semiconductor laser device
A laser and semiconductor technology, applied in the field of lasers, can solve the problem that the system loop response effect cannot reach the expected goal, and achieve a good effect of the loop response effect
Pending Publication Date: 2017-12-12
JIANGHAN UNIVERSITY
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Problems solved by technology
In the application of these digital high-integration chips, the response speed of its circuit can easily reach the order of 1s (less than the response time of the semiconductor laser loop), but in a specific semiconductor laser, due to its internal physical system mechanism, and The limitations of the existing programmed digital control technology lead to the fact that the actual system loop response effect cannot reach the expected goal
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[0026] according to figure 1 As shown, the self-compensating semiconductor laser device in the present invention includes a laser, an acousto-optic modulator, a beam splitter, a compensation circuit unit and a traditional frequency discrimination environment.
[0027] The optical frequency signal of the laser and the radio frequency signal generated by the compensation circuit unit are respectively sent to the acousto-optic modulator. The synthesized optical frequency signal output by the acousto-optic modulator is respectively output to the external optical physical environment and the traditional frequency discrimination environment through the optical splitter. The reading end of the compensation circuit unit is connected to the reading end of the traditional frequency discrimination environment.
[0028] Wherein, in the present invention, the compensation circuit unit such as figure 2 As shown, it includes a program-controlled amplifier module, a central processing unit...
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The invention relates to a self-compensating type semiconductor laser device. The device comprises a laser, an acoustic optical modulator, a beam splitting plate, a compensating circuit unit and a traditional frequency discrimination environment, wherein an optical frequency signal of the laser and a radio frequency signal generated by the compensating circuit unit are correspondingly transmitted to the acoustic optical modulator; a composite optical frequency signal output by the acoustic optical module is correspondingly output to the outside optical physical environment and the traditional frequency discrimination environment through the beam splitting plate; a reading end of the compensating circuit unit is connected to a read end of the traditional frequency discrimination environment. The self-compensating type semiconductor laser device has a good loop response effect and can meet the demands of most of conditions.
Description
technical field [0001] The invention relates to the field of lasers, in particular to a self-compensating semiconductor laser device. Background technique [0002] With the wide application of digital integrated chips, digital chip integration is used in many fields of modern electronic circuit technology to replace traditional independent components, so as to build circuit modules with high integration and high precision. In the semiconductor laser servo circuit, DDS and highly integrated processing processors are used at home and abroad to complete the closed-loop work of the entire system. In the application of these digital high-integration chips, the response speed of its circuit can easily reach the order of 1s (less than the response time of the semiconductor laser loop), but in a specific semiconductor laser, due to its internal physical system mechanism, and The limitations of the existing programmed digital control technology lead to the failure of the actual syst...
Claims
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Login to View More IPC IPC(8): H01S5/0683
CPCH01S5/06837
Inventor 李星
Owner JIANGHAN UNIVERSITY