Optical device with thermal compensation function

Abstract

The invention discloses an optical device with a thermal compensation function, which relates to the technical field of optical device precision matching, and mainly comprises a glass structure, a thermal compensation structure and a metal shell, wherein the glass structure is arranged in the metal shell; the thermal compensation structure is fixed between the glass structure and the metal shell,and the thermal compensation structure is used for eliminating the pulling force generated by the metal shell on the glass structure or filling a gap between the metal shell and the glass structure when the temperature rises. According to the optical device with the thermal compensation function, thermal compensation can be realized without adopting a water cooling structure.

Description

technical field [0001] The invention relates to the technical field of precision matching of optical devices, in particular to an optical device with thermal compensation function. Background technique [0002] Since different materials have different coefficients of thermal expansion, this will lead to one or more phenomena of extrusion, loosening, misalignment, and tension when two different materials are matched, welded, glued, threaded, and screwed. Once these phenomena occur, the worst results will cause the reliability of the entire product to decline, or even damage the entire product. For example, most of the core structures in optical devices are made of glass, such as common optical fibers, collimators, lenses, crystals, etc., while the outer shell of optical devices is often a metal structure. As the temperature rises, the coordination and connection between glass and metal may cause poor coordination due to the expansion coefficient of the glass material being m...

AI Technical Summary

Problems solved by technology

The effects of temperature rise mainly include loosening and pulling. Due to the gravity of the earth, once loosening occurs, the glass fixed in the metal structure may be displaced; once pulling occurs, the pulled glass will be It is possible to form a displacement from the original position, or the pulled glass does not produce displacement but internal stress will be generated due to the pulling force, which will affect the coupling efficiency of the glass (such as polarization maintaining fiber and photonic crystal fiber)

Although the existing technology uses a water-cooled structure to achieve thermal compensation, the water-cooled structure requires a water pump to circulate water to dissipate heat, and its waterway design often makes the overall structure larger and more complicated. device, thermal compensation can be achieved without the need for a water-cooled structure

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