All-fiber ultrashort pulse light source capable of simultaneously generating soliton and noise-like pulse

A technology of ultra-short pulse and soliton pulse, which is applied in the field of optical information, can solve the problem of single working state of the output pulse, and achieve the effect of increasing practicability, stable performance and simple structure

Active Publication Date: 2020-02-21
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

[0006] In order to solve the technical problem of single output pulse working state of the existing all-fiber ultrashort pulse light so...

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  • All-fiber ultrashort pulse light source capable of simultaneously generating soliton and noise-like pulse
  • All-fiber ultrashort pulse light source capable of simultaneously generating soliton and noise-like pulse
  • All-fiber ultrashort pulse light source capable of simultaneously generating soliton and noise-like pulse

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] Such as figure 1 As shown, the all-fiber ultrashort pulse source that can simultaneously generate solitons and noise-like pulses includes a first pump source 1, a second pump source 2, a first wavelength division multiplexer 3, and a second wavelength division multiplexer 4. Erbium-doped fiber 5, first coupler 6, high nonlinear fiber 7, second coupler 8, first polarization controller 9, polarization-dependent isolator 10, optical circulator 11, reflective adjustable optical attenuator 12 and a second polarization control 13 .

[0018] In the resonant cavity, the pump light is injected into both ends of the gain fiber to form a bidirectional pump structure. The first pump source 1 is connected to the a terminal of the first wavelength division multiplexer 3, the second pump source 2 is connected to the d terminal of the second wavelength division multiplexer ...

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Abstract

The invention discloses an all-fiber ultrashort pulse light source capable of simultaneously generating a soliton and a noise-like pulse and belongs to the light information technology field. A technical problem that an existing all-fiber ultrashort pulse light source is single in output pulse working state is solved. The light source comprises a first pumping source, a second pumping source, a first wavelength division multiplexer, a second wavelength division multiplexer, an erbium-doped optical fiber, a first coupler, a high nonlinear optical fiber, a second coupler, a first polarization controller, a polarization dependent isolator, an optical circulator, a reflective variable optical attenuator and a second polarization controller. In the invention, an attenuation-controllable mode locking structure and a double-coupler light splitting structure are adopted; in a same laser resonant cavity structure, a soliton pulse with stable performance and a noise-like pulse with high pulse energy can be output at the same time, practicability of the all-fiber ultrashort pulse light source is improved, cost is greatly reduced, and the all-fiber ultrashort pulse light source can be appliedto the fields of light communication, sensing, imaging, nonlinear frequency conversion and the like.

Description

technical field [0001] The invention relates to an all-fiber ultrashort pulse light source capable of simultaneously generating soliton and noise-like pulses, belonging to the technical field of optical information. Background technique [0002] Ultrashort pulse light sources refer to lasers with pulses whose time domain width is less than picoseconds. Ultrashort pulse light sources have important applications in medical, military, communication, ranging, mid-infrared light source generation and other fields, and have become the most promising development today. One of the laser technology. The use of all-fiber resonant cavity structure to generate ultrashort pulse laser has the characteristics of small size, good heat dissipation and simple manufacturing process. Therefore, all-fiber ultrashort pulse laser has high reliability and low cost, and is suitable for mass production and application. . In addition, by appropriately controlling the total dispersion value and nonli...

Claims

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Application Information

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IPC IPC(8): H01S3/067H01S3/098G02B6/27
CPCG02B6/2746H01S3/06725H01S3/06791H01S3/1109
Inventor 马万卓王天枢熊浩纪海莹林鹏姜会林
Owner CHANGCHUN UNIV OF SCI & TECH
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