Dissipative Soliton and Soliton Dual-Wavelength Laser Based on Dispersion Compensating Fiber

Abstract

The invention discloses a dissipative soliton and soliton dual-wavelength laser based on a dispersion compensating fiber, which includes a laser diode, a beam combiner, a gain fiber, a coupling output element, a polarization-independent isolator, a polarization-maintaining fiber, and a carbon nanotube. Dispersion compensating fiber, polarizer, first polarization controller and second polarization controller; beam combiner, gain fiber, outcoupling element, polarization independent isolator, dispersion compensating fiber, polarization maintaining fiber, carbon nanotube, first The polarization controller, the polarizer and the second polarization controller are sequentially connected by optical fibers to form an all-fiber ring cavity, and the laser diode is connected to the beam combiner as the pumping light source of the laser. The invention can realize dual-wavelength laser output of traditional solitons and dissipative solitons in the 2 μm band, has a simpler structure and lower cost, and can simply and conveniently realize dual-wavelength output mode conversion.

Description

technical field [0001] The invention relates to a dual-wavelength laser, which belongs to the field of fiber lasers, and more specifically relates to a dissipation soliton and soliton dual-wavelength laser based on a dispersion compensation fiber. Background technique [0002] Ultrashort pulse laser has a wide range of applications in optical fiber communication, biotechnology, medical treatment, laser spectroscopy, ultrafine processing, time-resolved spectroscopy and other fields. Mode-locking technique is a common method to obtain ultrashort optical pulses. Therefore, the research on mode-locked fiber lasers outputting femtosecond pulses has become a hot spot in the field of laser technology in recent years. Generally speaking, mode-locked fiber lasers can be divided into two categories according to different mode-locking methods: one is active mode-locked fiber lasers, and an intensity modulator or phase modulator driven by a microwave signal must be inserted into the ca...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the technical problems existing in the background technology, the present invention provides a dissipative soliton and soliton dual-wavelength laser based on dispersion compensating fiber with a new structure. It has three dual-wavelength output modes of dissipative soliton / traditional soliton, double dissipative soliton and double traditional soliton, which solves the technical problem that previous lasers cannot output dissipative soliton and soliton dual-wavelength and single output mode in the 2μm band

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