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Method of inhibiting waveguide laser parasitic oscillation

A technology of waveguide lasers and parasitic oscillations, applied in lasers, laser parts, phonon exciters, etc., can solve problems affecting output power, output power and efficiency, and achieve the goal of increasing output power and efficiency and reducing working length Effect

Inactive Publication Date: 2005-09-14
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

However, as the input pump power continues to increase, a contradiction that affects the output power and efficiency makes the existing suppression of parasitic oscillations a great challenge, which seriously affects the further improvement of the output power.

Method used

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  • Method of inhibiting waveguide laser parasitic oscillation

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Embodiment Construction

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

[0012] The structure of the embodiment of the invention suppressing the parasitic oscillation waveguide laser working medium is as follows figure 1 As shown, it includes three parts: Nd:YAG waveguide working medium 1, first wrapping 2 and second 3.

[0013] The said Nd:YAG waveguide working medium 1 is a yttrium aluminum garnet crystal doped with Nd ion concentration of 1.1% with a length of 60 mm, a width of 12 mm and a thickness of 200 μm.

[0014] The first wrapping 2 and the second wrapping 3 are yttrium aluminum garnet crystals with a thickness of 400 μm and not doped with Nd ions, which are also used to suppress parasitic oscillations.

[0015] The working medium is cut longitudinally into: 60mm×4μm×1mm, then sanded sideways, and then spliced ​​together mechanically.

[0016] It has been proved by use that the parasitic oscillation can be effectively suppressed,...

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Abstract

Wave-guide laser working medium with certain width is divided into three pieces along longitudinal direction. Then, after roughing side face of the divided pieces, they are assembled. The said wave-guide laser working medium is composed of Nd:YAG wve-guide working medium and bound edge at two surfaces. Nd:YAG wave-guide working medium is YAG crystal with Nd in ion concentration 1.1% being adulterated. Bound edge is YAG crystal without Nd being adulterated. The invention restrains parasitic oscillation effectively and outputs double laser output power.

Description

Technical field: [0001] The invention relates to a high-efficiency waveguide laser, in particular to a method for suppressing the parasitic oscillation of the waveguide laser. Background technique: [0002] In recent years, waveguide lasers have been developed rapidly. The biggest advantage of this type of laser is that it adopts diode pumping, which not only has a compact structure, but also has high light-to-light conversion efficiency, and can operate in a single mode in a continuous or pulsed state. Diode-pumped Nd:YAG lasers have been widely used in many fields such as industry, telecommunication, and military industry. [0003] In order to increase the continuous output power of the diode-pumped single-mode waveguide laser to the kilowatt level, various effective technical measures have been taken, such as using various coupling methods to efficiently couple the diode-pumped light In the waveguide, various unstable cavity control modes are used to control the operatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/06H01S3/102H01S3/16
Inventor 陈建文高鸿奕谢红兰李儒新徐至展
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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