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Forward Brillouin fiber laser based on stimulated Raman

A fiber laser, laser technology, applied in the field of laser research, can solve problems affecting the flexibility of resonator design

Active Publication Date: 2021-03-30
TAIYUAN UNIV OF TECH
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  • Claims
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Problems solved by technology

[0003] Searching in the existing literature found that domestic and foreign scholars (Opt.Express.14, pp.9731-9736, July, 2007 published by Zuxing Zhang et al.; Opt.Express.14, pp.10233-10238, published by L.Zhan et al. October, 2006; the invention patent proposed by Zou Hui, the authorized publication number: CN209487930U, "a multi-wavelength fiber laser based on a new resonator") is designed by using back Brillouin scattering to realize the adjustable wavelength in the resonator tuned Brillouin fiber laser, but still limited by the cavity length, which affects the design flexibility of the resonator

Method used

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  • Forward Brillouin fiber laser based on stimulated Raman

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Embodiment Construction

[0018] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] refer to figure 1 , the present invention provides a forward Brillouin fiber laser based on stimulated Raman-like, comprising: a tunable single-frequency laser 1, an erbium-doped fiber amplifier 2, a polarization controller 3, a first optical coupler 4, a second Second optical coupler 5, single-mode optical fiber 6, polarization beam combiner 7, third optical coupler 8, photodiode 9, spectrometer 10 and spectrometer 11;

[0020] The pumping light generated by the tunable single-frequency laser 1 is amplified by the erbium-doped fiber amplifier 2, and enters the port a of the first optical coupler 4 through the polarization controller 3, and is divided into two beams of coherent light transmitted in reverse, Output from por...

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Abstract

The invention discloses a forward Brillouin fiber laser based on stimulated Raman. The forward Brillouin fiber laser comprises a tunable single-frequency laser, an erbium-doped fiber amplifier, a polarization controller, an optical coupler, a single-mode fiber, a polarization beam combiner, a photodiode, a frequency spectrograph and a spectrograph. The forward Brillouin fiber laser based on stimulated Raman has the advantages and positive effects that compared with an existing Brillouin fiber laser, by utilizing the stimulated Raman R0m mode which is equal in frequency interval and related tothe fiber core diameter, the design flexibility of a resonant cavity is improved, and the Brillouin fiber laser with irrelevant cavity length is realized.

Description

technical field [0001] The invention belongs to the field of laser research, in particular to a forward Brillouin fiber laser based on stimulated Raman. Background technique [0002] Brillouin fiber laser has the characteristics of narrow linewidth and high signal-to-noise ratio. Because its signal lead is inversely proportional to the linewidth, it is widely used in optical communication systems, fiber radio, optical bistable, distributed / point fiber sensing and ultra- The speed of light transmission and other fields have a wide range of applications. The stimulated Brillouin scattering of optical fiber can be divided into forward Brillouin scattering and backward Brillouin scattering according to the direction. In recent years, with the continuous research and development of forward Brillouin scattering by domestic and foreign scholars, its self-phase matching The easy and spontaneous generation of high-order Stokes and anti-Stokes enables forward Brillouin scattering to ...

Claims

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Application Information

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IPC IPC(8): H01S3/067H01S3/08
CPCH01S3/06754H01S3/06725H01S3/08013
Inventor 刘毅宁钰商瑶陈鹏飞顾源琦
Owner TAIYUAN UNIV OF TECH
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