Gluing method of entity sagnac interferometer

Abstract

The invention provides a gluing method of an entity sagnac interferometer, and aims to solve the technical problems in an existing entity sagnac interferometer gluing method that in the gluing process, large gluing stress causes deformation of the reflecting surface of an interferometer, an interferometer assembly cannot be repaired for the second time, the modulation degree of the interferometeris reduced, and installation and adjustment are complex. Influence of the gluing process on an internal reflection film can be removed by adjusting the film coating sequence of the working surface ofthe interferometer and finally performing cold plating on the internal reflection film; secondary curing is adopted, and the shearing amount and orthogonality can be adjusted after primary curing; thetemperature of about 40 DEG C is kept in the secondary coating period, interferometer prisms can be annealed, and part of bonding stress is eliminated; by strictly monitoring the perpendicularity ofthe reflecting surface in the gluing process, rotation and inclination of the two half pentagonal prisms forming the interferometer are reduced, the gluing stress brought by the gluing process is reduced as much as possible, and the distressing adjustment of the entity sagnac interferometer is realized.

Description

technical field [0001] The invention relates to a gluing method of a solid sagnac interferometer. Background technique [0002] High-throughput static Fourier transform imaging spectroscopy technology is currently a research hotspot in the world. One of the implementation methods of this type of imaging spectrometer is to place a transverse shearing interferometer in the parallel optical path to achieve isoclinic interference imaging. This type of interference imaging The realization method has the technical characteristics that it is not restricted by the relative aperture of the optical system and the interference field and the imaging plane are always coplanar, so it can realize the interference spectrum detection with large relative aperture and high sensitivity. The transverse shear interferometer is its core component, and the typical representatives are sagnac interferometer, Michelson interferometer and improved Mach-Zehnder interferometer based on recirculating loop...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the existing solid sagnac interferometer gluing method, when the large gluing stress in the gluing process causes the deformation of the interferometer reflective surface, it is impossible to perform secondary repairs on the interferometer components, resulting in a decrease in the modulation degree of the interferometer, and the gluing process. To solve complicated technical problems, the present invention proposes a method for gluing solid sagnac interferometers

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