Optical interferometer and all-fiber laser device with tunable wavelength

An optical interference and laser technology, applied in lasers, laser parts, optics, etc., can solve the problem of small wavelength tuning range and achieve the effect of large wavelength tuning range

Inactive Publication Date: 2018-12-07
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

However, most of the existing tunable fiber lasers have the technical problem of a small wavelength tuning r

Method used

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  • Optical interferometer and all-fiber laser device with tunable wavelength
  • Optical interferometer and all-fiber laser device with tunable wavelength
  • Optical interferometer and all-fiber laser device with tunable wavelength

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Embodiment Construction

[0024] The design method will be described in detail below with reference to the drawings and specific implementations.

[0025] The structure of Mach-Zehnder or single-mode multi-mode single-mode interferometer in the prior art is as figure 1 , 2 Shown

[0026] In order to overcome the shortcoming that the wavelength tuning range of the above-mentioned two structure interferometers is small, the present invention provides an optical interferometer, such as image 3 As shown, the structure based on the combination of Mach-Zehnder and single-mode multi-mode single-mode fiber includes:

[0027] Double interference arms, both ends of the double interference arms are respectively connected to a 1×2 optical fiber coupler, and the optical fiber coupler is connected to a single-mode optical fiber;

[0028] One of the dual interference arms is a single-mode multi-mode single-mode interferometer.

[0029] The single-mode multi-mode single-mode structure interferometer can be put into the double ...

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PUM

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Abstract

The invention provides an optical interferometer and an all-fiber laser device with a tunable wavelength. A larger tuning range is achieved by combining Mach-Zehnder and single-mode and multi-mode structures and utilizing the pattern competition between light consumption and gain, and therefore the advantages which cannot be achieved by the prior art can be achieved.

Description

Technical field [0001] The invention relates to the technical field of fiber lasers, in particular to an optical interferometer and a wavelength tunable fiber laser combining Mach-Zehnder and single-mode multi-mode single-mode fiber structures. Background technique [0002] Compared with traditional solid-state lasers, fiber lasers have the characteristics of simple structure, small size, compact structure and convenient portability. With the continuous requirements of optical communications for fast, instantaneous and large-capacity information transmission, research on wavelength tunable lasers is in full swing. Tunable fiber lasers can switch between single wavelength and multiple wavelengths, change wavelengths, and adjust wavelength intervals, etc. Tuning. Due to its compact structure, flexible tuning and stable performance, tunable fiber lasers have multiple applications in fiber communications, fiber measurement, fiber sensing and other fields, and have a wide range of ap...

Claims

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Application Information

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IPC IPC(8): G02F1/01H01S3/067H01S3/106
CPCG02F1/0115H01S3/067H01S3/106H01S3/1062H01S3/1067
Inventor 金亮张宏伟张贺徐英添陈华龙邹永刚马晓辉
Owner CHANGCHUN UNIV OF SCI & TECH
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