a laser

Abstract

The invention discloses a laser. The laser comprises a substrate, a first luminescence array, a first optical coupling array, a second luminescence array, a second optical coupling array and a focusing lens, wherein the substrate is provided with a first step portion and a second step portion; the first luminescence array is fixed to the first step portion; the first optical coupling array is used for coupling a light beam emitted by the first luminescence array into a first light beam; the second luminescence array is fixed to the second step portion; the second optical coupling array is used for coupling a light beam emitted by the second luminescence array into a second light beam; the focusing lens is arranged in front of the first optical coupling array and the second optical coupling array and is used for focusing and outputting the first light beam and the second light beam; incidence angles of the first light beam and the second light beam which are emitted into the focusing lens are different; after the first light beam is focused, a first path of laser is output; and after the second light beam is focused, a second path of laser is output. Through the above mode, the laser can output two paths of lasers.

Description

technical field [0001] The invention relates to the technical field of fiber laser equipment, in particular to a laser. Background technique [0002] The master oscillator power amplifier (Master Oscillator Power-Amplifier, MOPA) fiber laser is composed of two parts, namely the seed light source and one or several stages of fiber amplifier structure. [0003] Existing semiconductor lasers usually only have one fiber output end, and only output one laser. Therefore, for MOPA fiber lasers, there are several stages of fiber amplifier structures, and a corresponding number of semiconductor lasers is required, such as 20W MOPA fiber Laser, its seed source output needs 10W pumping, amplifier stage output needs 20W pumping, then it needs to use a 10W and 20W semiconductor laser respectively, resulting in MOPA fiber laser needs to be equipped with more semiconductor lasers, making MOPA fiber Lasers are expensive. In addition, in order to drive the equipped semiconductor laser, it ...

AI Technical Summary

Problems solved by technology

[0003] Existing semiconductor lasers usually only have one fiber output end, and only output one laser. Therefore, for MOPA fiber lasers, there are several stages of fiber amplifier structures, and a corresponding number of semiconductor lasers is required, such as 20W MOPA fiber Laser, its seed source output needs 10W pumping, amplifier stage output needs 20W pumping, then it needs to use a 10W and 20W semiconductor laser respectively, resulting in MOPA fiber laser needs to be equipped with more semiconductor lasers, making MOPA fiber Lasers are more expensive

In addition, in order to drive the equipped semiconductor laser, it is also necessary to add multiple output terminals to the driving power supply of the fiber laser, and connect the semiconductor laser through the output terminal to drive the semiconductor laser to work, but this also makes the structure of the MOPA fiber laser more complex. Complicated and more inconvenient to use

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