Laser light source special for michelson interferometer

Abstract

The invention relates to a laser light source special for a michelson interferometer. The laser light source comprises a light source casing, a laser tube, a sliding collimating lens focalizer and a collimating lens, the laser tube is used for generating dotted extended light sources and installed in one end of the light source casing, the sliding collimating lens focalizer is sleeved outside the other end of the light source casing and can slide leftwards or rightwards along the light source casing, the collimating lens is fixedly installed at one end of the sliding collimating lens focalizer, and used for performing collimating or beam expansion to lasers emitted by the laser tube, the end of the sliding collimating lens focalizer is far from the laser tube, and a connection bracket which is used for being connected with the michelson interferometer is further arranged on the light source casing. According to the laser light source special for the michelson interferometer, miniaturization and integration of the laser light source are achieved, and by means of the connection bracket, the laser light source and the michelson interferometer are integrated, so that accuracy of testing is improved; and by means of the sliding collimating lens focalizer, the collimating lens undertakes work of collimation and beam expansion of the lasers, so that adding of beam expansion lenses is avoided, regulating steps are simplified, and regulating speeds of the michelson interferometer are greatly accelerated.

Description

technical field [0001] The invention relates to a laser light source, in particular to a special laser light source for Michelson interferometer. Background technique [0002] The Michelson interferometer is an optical measuring instrument with ingenious conception, compact structure and high testing accuracy. It occupies a pivotal position in the development of physics, especially modern physics. It can complete a variety of analytical tests and experimental teaching tasks. The instrument is also one of the most common experimental instruments in the physics experiment centers of colleges and universities in my country. The principle of the Michelson interferometer is that a beam of incident light is divided into two beams by the beam splitter, and each is reflected back by the corresponding plane mirror and interferes. The different optical paths of the two beams of light in the interference can be adjusted by adjusting the length of the interference arm and changing the r...

AI Technical Summary

Problems solved by technology

The first direct adjustment method takes a lot of time, and the adjustment accuracy is not high; the second adjustment method currently uses lasers and beam expanders for auxiliary adjustment, and this adjustment method is more accurate than the first one. The adjustment method has been improved, and the adjustment time has also been reduced, but the defect of this method is that the laser, the beam expander and the Michelson interferometer are separated from each other, and they are used in combination during the experiment, resulting in the contour, coaxial, and Factors such as distance and angle of incidence need to be reconfigured every time and are easily affected by external disturbances, making it time-consuming to adjust Michelson interferometers

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