Lightweight fiber laser

Abstract

A lightweight fiber laser comprising a housing, a semiconductor laser, a red-light laser, a pumping beam combiner, an optical resonant cavity, and silicone rubber, wherein the housing includes a bottom plate, a side plate and a cover plate; the semiconductor laser, a red-light laser, the pumping beam combiner and the optical resonant cavity are all disposed on the upper surface of the bottom plate; the output end of the semiconductor laser is fusion spliced to the input end of the pumping beam combiner through a fiber; the output end of the red-light laser is fusion spliced to the input end ofthe pumping beam combiner through a fiber; the input end of the optical resonant cavity is fusion spliced to the output end of the pumping beam combiner; the optical resonant cavity is provided therein with a high-reflection grating, a doped fiber and a low-reflection grating; and the silicone rubber is disposed in the housing. The housing is high in structural strength. The potted silicone rubber further strengthens the structural stability, assists heat dissipation, and can work normally in severe conditions such as low temperature, high temperature, serious vibration and serious impact. Bymeans of the lightweight and compact structure, the laser can be easily used in small devices.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a lightweight fiber laser. Background technique [0002] A laser is a device that emits laser light. At present, lasers have been widely used in various fields, such as laser welding, laser cutting, laser marking and other technologies in industrial applications. As well as laser radar, laser ranging, laser guidance and many other aspects used in the military field. With the development of lasers, fiber lasers with optical fibers as gain media came into being. [0003] A fiber laser uses a semiconductor laser as the pump source, a doped fiber as the gain medium, and a pair of fiber gratings with different reflectivity to form a resonant cavity. Compared with traditional solid-state lasers, it has many advantages such as small size, high electro-optical efficiency, and easy maintenance, and will be the development direction of lasers in the future. [0004] However, the fiber lasers curr...

AI Technical Summary

Problems solved by technology

[0004] However, the fiber lasers currently on the market have the following technical defects: (1) Existing fiber lasers generally have relatively strict requirements on the operating environment, which will have a serious impact on the performance of the laser in high temperature and low temperature environments, and the energy conversion efficiency of the laser lower

(2) The existing fiber lasers with a continuous power of 10w or more require additional cooling and heating structures, resulting in a large overall volume and weight of the laser, which makes it difficult to be implanted in some portable devices, and the shell structure is heavy. Complex assembly process

(3) The components and installation structure of the laser have low strength, and the laser cannot withstand high-intensity vibration and strong impact, which may easily cause damage to laser components

Images