Wavelength locking semiconductor laser system

Abstract

A wavelength locking semiconductor laser system comprises: a first optical fiber coupling module to an Nth optical fiber coupling module, wherein the kth optical fiber coupling module comprises a kth energy transmission optical fiber and a plurality of kth semiconductor laser light-emitting tubes; a volume grating locking module comprising a plurality of (N+1)th semiconductor laser light-emitting tubes, a volume grating and an (N+1)th energy transmission optical fiber; an optical fiber combiner comprising a first input optical fiber to an (N + 1) th input optical fiber and an output optical fiber, wherein the kth energy transmission optical fiber is connected with the kth input optical fiber, and the (N+1) th energy transmission optical fiber is connected with the (N+1)th input optical fiber; and an partial reflection structure arranged on one side of the output end face of the output optical fiber, wherein the partial reflection structure is used as a resonance feedback structure of the plurality of semiconductor laser light-emitting tubes from the first semiconductor laser light-emitting tubes to the Nth semiconductor laser light-emitting tubes. The spectrum of the output light beam of the wavelength locking semiconductor laser system is narrowed.

Description

technical field [0001] The invention relates to the field of semiconductors, in particular to a wavelength-locked semiconductor laser system. Background technique [0002] Semiconductor lasers have excellent characteristics such as high efficiency, compact structure, wide wavelength range, low cost, and high reliability. However, traditional semiconductor lasers have poor spectral characteristics, poor beam quality, and low direct output power and brightness. However, some solid-state lasers and fiber lasers require the output beam of the semiconductor laser to have a narrow linewidth. In order to narrow the spectrum of a semiconductor laser, a volume Bragg grating (VBG) is often used as a reflective cavity mirror and a high-power semiconductor laser to form an external cavity semiconductor laser. [0003] Commonly used semiconductor laser pump sources include single-tube beam combining modules and arrays, which are fiber-coupled after beam shaping to become pigtail output...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the wide spectrum of the output beam of the wavelength-locked semiconductor laser system in the prior art

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