Picosecond-controllable dual-wavelength fiber laser

A fiber laser, dual-wavelength technology, used in lasers, laser parts, phonon exciters, etc., can solve the problems of mode competition, the distance between the output wavelengths of the dual wavelengths, etc., and achieve easy integration, large wavelength spacing, and compact structure. Effect

Active Publication Date: 2014-03-12
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

In addition, the dual-wavelength output wavelengths reported in the literature are relatively close to each other, which is likely to cause mode competition.

Method used

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  • Picosecond-controllable dual-wavelength fiber laser

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the...

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Abstract

The invention provides a picosecond-controllable dual-wavelength fiber laser. The output of mode locking pulse laser with different wave lengths is realized by using a plurality of mode locking devices to share a gain fiber, the picosecond output is controllable through the polarization characteristic, and the laser output or the oscillation inhibition is realized through modulating two polarization controllers in different resonant cavities.

Description

technical field [0001] The invention relates to the technical field of fiber lasers, in particular to a controllable picosecond dual-wavelength fiber laser. Background technique [0002] Dual-wavelength lasers have important applications in the fields of optical communication, optical computing, nonlinear frequency conversion, military countermeasures, environmental monitoring, laser remote sensing, and radar. At present, the main way for lasers to generate dual wavelengths is Raman frequency shift to obtain new wavelengths (Wan Yong, Han Kai, Han Hong, Li Tong, Shao Huaizong. Repetition frequency dual wavelength output (Nd, Ce): Research on YAG Raman frequency shifted lasers. Laser Technology, 26(2), 2002.), fundamental frequency light and frequency doubled light are simultaneously output to obtain dual wavelengths, and a laser medium with broadband emission spectrum is selected to obtain dual wavelength output with a frequency-selective device (N.Saito, K.Akagawa , S.Wada...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/10H01S3/101
Inventor 孙伟林学春于海娟张玲晏诗恋李梦龙李晋闽
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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