Method and device for multi-wavelength stable output of ring structure optical fiber laser

Abstract

The related loop fiber laser multiple wavelength output device based on mixed gain of Lamb amplifier and erbium-doped fiber amplifier comprises: an optical loop with second port connected with Sagnac loop filter included two polarization controllers whose another end connects with 3dB optical coupler port, an optical coupler, a fiber Lamb amplifier, and the erbium-doped fiber amplifier. This invention can output laser stably.

Description

technical field [0001] The invention belongs to the field of fiber lasers, and in particular relates to a multi-wavelength stable output method and equipment of a ring-shaped fiber laser based on the mixed gain of a fiber Raman amplifier and an erbium-doped fiber amplifier. Background technique [0002] With the development of optical communication technology and fiber optic sensing technology, multi-wavelength fiber lasers have increasingly become a focus of attention. Multi-wavelength fiber lasers have the advantages of multi-wavelength output, low cost, and fiber compatibility, and have important applications in optical communication systems, sensing systems, industrial processing, and monitoring. [0003] As the most commonly used erbium-doped fiber laser at present, it faces a difficulty in realizing multi-wavelength operation, that is, the erbium-doped fiber at room temperature has a large uniform gain linewidth (there is a strong gain competition among multiple wavele...

AI Technical Summary

Problems solved by technology

The few methods to achieve multi-wavelength operation of erbium-doped fiber lasers at room temperature have the disadvantages of complex laser systems, high costs, or the need for special fibers.

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