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Laser device with high stability

A technology of lasers and laser tubes, applied in the field of lasers, can solve problems such as the frequency stability of the output signal of semiconductor lasers is not ideal, and cannot meet the requirements of high-end experimental applications, so as to ensure long-term stability, short-term stability, and frequency The effect of stability

Active Publication Date: 2016-03-16
JIANGHAN UNIVERSITY
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Problems solved by technology

[0004] However, even if the above-mentioned working conditions of the semiconductor laser are well controlled, the frequency stability of the output signal of the semiconductor laser is still not ideal, and it cannot meet the application requirements in high-end experiments, scientific research and other fields.

Method used

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] figure 1 It is a schematic structural diagram of a laser with high stability provided by the embodiment of the present invention, see figure 1 , the laser includes: a laser tube 10, a piezoelectric crystal driver 20, a beam splitter 30, an optical switch 40, a resonator 50, a synchronous detection unit 60, a low frequency modulator 70, an interferometer 80, a data processing unit 90 and a temperature compensation unit 100;

[0034] The beam splitter 30 is arranged on the laser output optical path of the laser tube 10, and the laser light generated by the laser tube 10 is divided into two optical path branches by the beam splitter 30, and the optical switch 40, the resonant cavity 50 and the synchronous detection unit 60 are arra...

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Abstract

The invention discloses a laser device with high stability, and belongs to the technical field of laser devices. The laser device comprises a laser tube, a piezo-electric crystal driver, a beam splitter, a photoswitch, a resonant cavity, a synchronous detection unit, a low-frequency modulator, an interferometer, a data processing unit and a temperature compensation unit, wherein the beam splitter is arranged on a laser output light path of the laser tube; the beam splitter splits a laser generated by the laser tube to obtain two light path branches; the photoswitch, the resonant cavity and the synchronous detection unit are sequentially arranged on one of the two light path branches; the interferometer is arranged on the other one of the two light path branches; the low-frequency modulator is electrically connected with the photoswitch and the synchronous detection unit simultaneously; the data processing unit is electrically connected with the interferometer; and the piezo-electric crystal driver is electrically connected with the synchronous detection unit, the data processing unit and the temperature compensation unit simultaneously.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a laser with high stability. Background technique [0002] Semiconductor laser is a light source device with many advantages, such as small size, simple structure, good monochromaticity, good coherence, low working power supply voltage, etc. play an increasingly important role. Especially in basic physics research such as quantum physics, semiconductor lasers have played an indispensable and important role. [0003] However, in the field of quantum physics, the frequency stability of the semiconductor laser output signal is very high. In order to ensure the frequency stability of the semiconductor laser output signal, the existing technology usually improves the frequency stability of the semiconductor laser by controlling the working conditions of the semiconductor laser. Such as controlling the operating temperature of semiconductor lasers. [0004] However, even if the above...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/13
Inventor 周俊漆为民贾茜
Owner JIANGHAN UNIVERSITY
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