A Semiconductor Laser Edge Frequency Stabilization System
A technology of lasers and semiconductors, applied in semiconductor lasers, lasers, laser components, etc., can solve the problems of inability to achieve arbitrary frequency stabilization and high cost, and achieve the effect of expanding the frequency range of visible light, cheap cost, and widening the frequency range
Active Publication Date: 2021-10-15
TIBET UNIVERSITY FOR NATIONALITIES
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Problems solved by technology
[0008] Due to the extremely limited specific absorption lines required by atomic standards, and the feasibility and high cost of manufacturing FP etalons, it is impossible to achieve arbitrary frequency stabilization for semiconductor lasers that output lasers with arbitrary operating frequencies. In reality, it is only possible for limited application to achieve frequency stabilization
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] The atomic reference, in the present invention, specifically refers to a glass bubble filled with gas. The gas in the bubble has an independent special absorption line, and the wavelength corresponding to th...
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The invention relates to a semiconductor laser edge frequency stabilization system. The present invention uses the edge of the atomic or molecular absorption spectrum as a reference to expand the frequency stabilization range, which not only expands the visible light frequency range of semiconductor lasers, but also uses the edge of the molecular reference to achieve frequency stabilization in the infrared frequency range, thus greatly broadening the existing There is a frequency range for semiconductor laser frequency stabilization method; frequency stabilization achieves complete electrical feedback, and the cost is cheap; due to the use of atomic absorption spectral line peak locking to generate a constant sinusoidal signal amplitude, the frequency stabilization accuracy of this method can reach the frequency stabilization accuracy of center locking .
Description
technical field [0001] The invention relates to the technical field of laser spectrum detection, in particular to a semiconductor laser edge frequency stabilization system. Background technique [0002] The high-brightness monochromatic (single frequency) light output by semiconductor lasers is affected by many factors such as whether the driving current is constant, whether the semiconductor material is stable under working conditions, and so on. In order to ensure that the semiconductor laser outputs light of a single frequency, it is necessary to actively and reliably control the output frequency to ensure the stability of the output frequency. Different from ordinary laser frequency stabilization, semiconductor laser frequency stabilization can be divided into internal cavity frequency stabilization or external cavity frequency stabilization. Regardless of external cavity frequency stabilization or internal cavity frequency stabilization, frequency-selective components ...
Claims
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IPC IPC(8): H01S5/068H01S5/0687
CPCH01S5/068H01S5/0687
Inventor 常岐海郭桂芳黄操时朝晖
Owner TIBET UNIVERSITY FOR NATIONALITIES