Dissipative soliton resonance fiber laser

Abstract

The invention provides a dissipative soliton resonance fiber laser. The dissipative soliton resonance fiber laser comprises a laser emitting assembly, a wavelength division multiplexer, a gain fiber,a coupler, a polarization independent isolator and an all-fiber saturable absorption assembly which are welded in sequence; the all-fiber saturable absorption assembly is welded with the wavelength division multiplexer; the wavelength division multiplexer, the gain fiber, the coupler, the polarization independent isolator and the all-fiber saturable absorption assembly are connected in sequence toform a fiber ring cavity structure; the all-fiber saturable absorption assembly comprises a polarization controller and a fiber group; the fiber group comprises a single-mode fiber, a single-claddingmultimode fiber and an output single-mode fiber which are connected in sequence; and the single-mode fiber, the single-cladding multimode fiber and the output single-mode fiber which are connected insequence are mechanically clamped by the polarization controller. According to the invention, the soliton can be stably operated under the condition of large energy, no splitting is generated, and apowerful support is provided for the large energy output of the fiber laser.

Description

technical field [0001] The invention relates to the technical field of fiber lasers, in particular to a dissipative soliton resonance fiber laser. Background technique [0002] Dissipative soliton resonance is a new type of soliton discovered in recent years that is different from previous Gaussian pulses. It has the characteristics of a rectangular pulse. With the increase of the pump power, the pulse amplitude no longer increases, but the pulse width increases. This kind of soliton has the advantage that it is not easy to split, and the pulse energy can theoretically increase infinitely. The 1.5μm dissipative soliton resonant fiber laser has broad application prospects in the fields of optical communication, material processing, optical frequency comb, biomedicine and nonlinear optics, and is the most active and creative branch of the laser field. Mode-locking is a technique used in optics to generate extremely short-duration laser pulses, usually in the picosecond (10 mi...

AI Technical Summary

Problems solved by technology

However, the existing mode-locked fiber lasers generally use Gaussian pulse type traditional soliton mode-locking or dissipative soliton mode-locking. This kind of pulse is affected by the pulse peak power limiting effect, the pulse is easy to split, and the pulse energy is reduced at the same time.

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