Hybrid cavity type dual-wavelength narrow linewidth optical fiber laser

A fiber laser and narrow linewidth technology, applied in the field of lasers, can solve the problem of not being able to output narrow linewidth traditional lasers and random lasers at the same time, and achieve the effects of stable microwave signal output, symmetrical optical path structure, and symmetrical signal output

Active Publication Date: 2017-10-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the generation of dual-wavelength and multi-wavelength in the prior art is generally realized separately in a fixed cavity or a random cavity, and cannot simultaneously output narrow-linewidth traditional lasers and random lasers. Th

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  • Hybrid cavity type dual-wavelength narrow linewidth optical fiber laser

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Embodiment 1

[0036] Combine below figure 1 The present invention will be described in detail.

[0037]A hybrid cavity type dual-wavelength narrow-linewidth fiber laser involved in the present invention consists of two parts, A (line cavity) and B (random cavity), including: a first pump laser 101, a second pump laser 102, a second pump laser A wavelength division multiplexer 103, a second wavelength division multiplexer 104, a first fiber grating Fabry-Perot etalon 105, a first fiber grating Fabry-Perot etalon 106, and polarization state control Device 107 , doped fiber 108 , first fiber circulator 201 , second fiber circulator 20 and single mode fiber 203 . Wherein, the first pump laser 101 is connected to the first port of the first wavelength division multiplexer 103; the second pump laser 102 is connected to the first port of the second wavelength division multiplexer 104; One end of the first fiber grating Fabry-Perot etalon 105 is connected to one end of the polarization state cont...

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Abstract

The invention discloses a hybrid cavity type dual-wavelength narrow linewidth optical fiber laser, relates to the field of a laser and aims at solving the problem that in the prior part, dual-wavelengths or multi-wavelengths are generally generated in a fixing cavity or a random cavity independently and narrow linewidth traditional lasers and random lasers cannot be output at the same time. According to the hybrid cavity type dual-wavelength narrow linewidth optical fiber laser, a linear resonant cavity is driven through two lasers emitted by two pump lasers; two narrow linewidth lasers are symmetrically output through oscillation tuning of the linear resonant cavity; the random cavity is driven by the two narrow linewidth lasers output by the linear resonant cavity; two ultra-narrow linewidth Brillouin random lasers through oscillation tuning of the random cavity; two different cavity structures and two different gain mechanisms are realized in the same system; and the narrow linewidth traditional lasers and random lasers are output at the same time under the effect of the same pump source. The hybrid cavity type dual-wavelength narrow linewidth optical fiber laser applies to the field of a laser technology and the laser.

Description

technical field [0001] The invention relates to the field of lasers, in particular to a mixed-cavity double-wavelength narrow-linewidth fiber laser. Background technique [0002] At present, multi-wavelength fiber lasers have potential applications in microwave generation, optical sensing, short optical pulses, optical frequency measurement, optical signal processing, frequency shifting, dense wavelength division multiplexing (DWDM) optical communication, and data transmission amplification, and Its implementation cost is low, and it is easy to produce narrow linewidth laser output, so it has attracted widespread attention. [0003] At room temperature, multi-wavelength fiber lasers can be realized by using nonlinear optical effects such as stimulated Brillouin scattering (SBS), four-wave mixing (FWM), and nonlinear polarization rotation (NPR); it is also possible to utilize rare-earth gain media , such as erbium-doped fiber (EDF), the integration of ytterbium-doped fiber i...

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Application Information

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IPC IPC(8): H01S3/08H01S3/10H01S3/067H01S3/30
CPCH01S3/067H01S3/08H01S3/10061H01S3/30
Inventor 欧中华何欢欢崔楠楠汪豫贾敏刘永
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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