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A linear resonant cavity wide narrow line tunable optical fiber laser

A technology of fiber lasers and resonators, which is applied in the direction of lasers, laser components, and the structure/shape of optical resonators, can solve the problems of reducing laser output power and the tuning range cannot be too wide, and achieve good stability and avoid The effect of space burning effect

Inactive Publication Date: 2007-05-30
BEIHANG UNIV
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  • Abstract
  • Description
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Problems solved by technology

Although the above method can obtain single longitudinal mode output, it will reduce the laser output power, and its tuning range cannot be too wide

Method used

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  • A linear resonant cavity wide narrow line tunable optical fiber laser

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Embodiment Construction

[0014] The invention discloses a novel fiber laser, which realizes the functions of wide tunable and single longitudinal mode narrow line width laser output with a simple structure.

[0015] Please refer to Fig. 1, the present invention is a narrow linewidth tunable fiber laser with a linear resonant cavity. End A is fused to one end of the first doped optical fiber 3, the other end of the first doped optical fiber 3 is fused to the Faraday mirror 4, and end D of the optical fiber wavelength division multiplexer 2 is fused to the fiber Fabry-Perot tunable filter 9 One end is fused, the other end of the optical fiber Fabry-Perot tunable filter 9 is fused to the A end of the first coupler 8, the C end of the first coupler 8 is fused to the A end of the second coupler 5, and the second coupling The C end of the coupler 5 is fused to one end of the second doped optical fiber 7 , the D end of the second coupler 5 is fused to the other end of the second doped optical fiber 7 , and t...

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Abstract

This invention discloses one linear resonance thin thread width atonable fiber laser, wherein, the pump light source enters from multiplex C end to first mixture fiber through fiber multiplex A end; the first mixture fiber is to absorb pump light to generate fluorescence light along R direction for fiber multiplex A end and L direction for Faraday reflection lens.

Description

technical field [0001] The present invention relates to a fiber laser, more particularly, to a narrow linewidth tunable fiber laser capable of maintaining stable laser output frequency and avoiding space hole burning effect. Background technique [0002] Fiber laser is developed on the basis of optical amplifier technology. Similar to optical amplifier, its gain medium is a section of doped optical fiber, which is combined with corresponding devices to form an active resonant cavity, which is generally realized under the pumping of semiconductor laser. output of the laser. As a new type of light source, it has unique advantages: flexible optical fiber output, can work in harsh environments, compact structure, high energy density, strong anti-electromagnetic interference, low pumping threshold, high conversion efficiency, tunable range Wide, no need to add heat dissipation, etc., especially can easily obtain the output of optical fiber communication C-band, and naturally cou...

Claims

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Application Information

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IPC IPC(8): H01S3/00H01S3/10H01S3/067H01S3/08H01S3/0941H01S3/16
Inventor 欧攀张春熹刘殿君胡姝玲贾豫东曹彬
Owner BEIHANG UNIV