Period bifurcation dissipative soliton resonance pulse fiber laser and generation method thereof

Abstract

The invention discloses a period bifurcation dissipative soliton resonance pulse fiber laser, which comprises a pump source, a wavelength division multiplexing coupler, a ytterbium-doped gain fiber, an isolator, a first output coupler, a first polarization controller and a fiber nonlinear ring reflector. The output end of the pump source is connected with the input end of the wavelength division multiplexing coupler; and the wavelength division multiplexing coupler, the ytterbium-doped gain fiber, the isolator, the first output coupler, the first polarization controller and the fiber nonlinearring reflector are connected in sequence to form a fiber ring cavity. The fiber nonlinear ring reflector comprises a second output coupler. A single-mode fiber and a second polarization controller are connected between two output ports of the second output coupler; and two input ports of the second output coupler are connected with the first polarization controller and the wavelength division multiplexing coupler respectively. The invention also discloses a period bifurcation dissipative soliton resonance pulse generation method. The method realizes period bifurcation dissipative soliton resonance pulse optical pulse output.

Description

technical field [0001] The invention relates to a periodic bifurcated dissipative soliton resonance pulse fiber laser and a production method, belonging to the field of laser technology. Background technique [0002] Periodic bifurcation in ultrafast lasers means that the parameters of the output pulse repeat at a fixed period that is a multiple of the cavity length [Infrared and Laser Engineering, 2018, 47(8): 803002-0803002(9)]. Periodic bifurcation is one of the intrinsic characteristics of nonlinear systems, which widely exists in all nonlinear systems. As a typical representative of nonlinear systems, ultrafast fiber lasers are easier to realize the phenomenon of periodic bifurcation. The simplest application of the periodic bifurcation phenomenon is that two or more different steady-state outputs can be realized simultaneously in one laser. [0003] In 2008, Chang et al. [Phys. Rev. A 78, 023830 (2008)] first proposed the concept of "dissipative soliton resonance" in...

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Problems solved by technology

[0004] However, the generation of dissipative soliton resonance-type pulses with bifurcated periods has not been reported in the literature

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