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Tunable mode-locked fiber laser based on helical mechanism, preparation and output method

A technology of fiber lasers and helical mechanisms, which is applied to lasers, laser components, phonon exciters, etc., can solve the problems that the polarization controller cannot realize the quantization of output light parameters, is easily affected by the environment, and has high costs, so as to facilitate integration Advanced design, easy integration, and low environmental impact

Active Publication Date: 2022-08-05
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

The polarization controller cannot quantify the parameters of the output light. The introduction of variable refractive index materials in spatial light can solve this problem, but it will make the

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  • Tunable mode-locked fiber laser based on helical mechanism, preparation and output method
  • Tunable mode-locked fiber laser based on helical mechanism, preparation and output method
  • Tunable mode-locked fiber laser based on helical mechanism, preparation and output method

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Embodiment Construction

[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0049] In view of the problems existing in the prior art, the present invention provides a tunable mode-locked fiber laser based on a helical mechanism. The present invention will be described in detail below with reference to the accompanying drawings.

[0050] like figure 1 As shown, the tunable mode-locked fiber laser based on the helical mechanism provided by the embodiment of the present invention includes: a pump source 1, a wavelength division multiplexer 2, a gain fiber 3, an output coupler 4, a helical mechanism 5, a single-mode-multiple Mode-Single Mode (SMS) structure 6 , isolator 7 , saturable absorber...

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Abstract

The invention belongs to the technical field of fiber lasers, and discloses a tunable mode-locked fiber laser based on a helical mechanism, a preparation method and an output method. The tunable mode-locked fiber laser based on the helical mechanism is composed of a pump source, a wavelength division multiplexer, a gain Optical fiber, output coupler, screw mechanism, single-mode-multi-mode-single-mode, namely SMS structure, isolator and saturable absorber; the pump source is the basic light source, which is used to excite the laser working substance; the pump The source is connected to the wavelength division multiplexer through the optical fiber; the wavelength division multiplexer, the gain fiber, the output coupler, the SMS structure, the isolator, the saturable absorber, and the access form a fiber ring cavity structure; the SMS structure has two components. An end single-mode optical fiber is connected to the helical mechanism. The invention provides a tunable mode-locking fiber laser with low cost, little environmental impact, easy integration, quantifiable parameters, fine-tuning, good stability, simple structure and convenient realization and manufacture.

Description

technical field [0001] The invention belongs to the technical field of fiber lasers, and in particular relates to a tunable mode-locked fiber laser based on a helical mechanism, a preparation method and an output method. Background technique [0002] At present, tunable fiber lasers are widely used, and can be used in wavelength division multiplexing, spectral analysis, biomedical processing, environmental pollution monitoring and information processing in the field of communication. Tunable fiber lasers have many advantages in terms of threshold, efficiency, and tunable wavelength range. Filtering in the fiber enables laser tunable output. At present, common methods include using fiber Bragg gratings, long-period fiber gratings, Mach-Zehnder and Segnac structures to achieve filtering. However, fiber gratings and interference structures are more complicated and costly in actual production, and are limited by Post demodulation device, complex production technology and diffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/067H01S3/102H01S3/098H01S3/00
CPCH01S3/1115H01S3/06708H01S3/06791H01S3/102H01S3/0007
Inventor 金亮谢尚之张贺徐英添马晓辉李岩石琳琳
Owner CHANGCHUN UNIV OF SCI & TECH
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