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Raman fiber glass laser with regulatable wavelength

A fiber laser and Raman resonator technology, which is applied in lasers, laser components, phonon exciters, etc., can solve the problems of complex structure, high cost and difficult technical realization of multi-level Raman cascaded resonators

Inactive Publication Date: 2005-01-12
WUHAN OV ORANGE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the structure of multi-level Raman cascaded resonators is complex, the technology is difficult to realize, and the cost is expensive.

Method used

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  • Raman fiber glass laser with regulatable wavelength
  • Raman fiber glass laser with regulatable wavelength
  • Raman fiber glass laser with regulatable wavelength

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0012] The present invention is a Raman fiber laser with tunable wavelength, which is a system, and its structure is as follows: figure 1 Shown: It consists of 1342nm solid-state laser 1, 1342nm optical isolator 2 and Raman resonator. The structure of the Raman resonator is: including wide spectrum high reflection mirror 3, optical filter 4, wavelength division multiplexing coupler (WDM combiner) 6, Raman frequency shifting optical fiber 7 and dichroic mirror 9, they consist of The collimator and the optical fiber form an optical path connection. The optical filter 4 is a solid FP cavity narrow-band tunable filter, which together with the wide-spectrum high reflection mirror 3 constitutes the front cavity mirror of the laser cavity of the Raman resonator.

[0013] A collimator 5 is provided between the optical filter 4 and the wavelength division mult...

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Abstract

The disclosed laser is composed of 1342nm solid-state laser, 1342nm optical isolator and Raman resonator. Structure of the Raman resonator includes wide spectrum high reflector, optical filter, wavelength division multiplex coupler, Raman frequency shift optical fiber and dichroic mirror, which are connected through collimator and optical fiber so as to constitute optical path. The optical filter is solid Fabry-Perot cavity narrowband tunable optical filter. The optical filter together with the said reflector constitute front cavity mirror of laser resonator. Comparing with prior art, the invention overcomes disadvantages of multiple frequency shift orders, low conversion efficiency, and poor temperature stability. The invention possesses function of turning wavelength of laser in range of tens Nano.

Description

technical field [0001] The invention is a wavelength tunable Raman fiber laser. Background technique [0002] The fiber laser adopts optical pumping, the doping in the fiber core activates particles, absorbs light energy of certain wavelength bands, forms particle number inversion in the working substance, and generates laser light. For cladding fiber lasers pumped by diode lasers, by selecting a diode laser with a specific wavelength, the spectrum emitted by the diode is just the absorption band of the doped active particles. The light source is used to obtain fiber lasers with high efficiency, full curing, small size, high reliability and wider application. [0003] At present, most conventional Raman fiber lasers use a double-clad fiber plus a Raman resonator structure. The pump laser diode (LD) has a wavelength of 976nm and injects Yb 3+ Doped double clad fiber, output 1117nm lasing wavelength as pump light. To obtain the laser output of the 14xxnm series, a Stokes (S...

Claims

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Application Information

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IPC IPC(8): H01S3/00H01S3/05
Inventor 刘德明张敏明王英胡必春
Owner WUHAN OV ORANGE TECH