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Table type fully solidified high repetition frequency femtosecond laser

A high repetition rate, femtosecond laser technology, used in lasers, laser parts, phonon exciters, etc., can solve problems such as not meeting actual needs

Inactive Publication Date: 2004-11-10
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The average output power of this laser device is less than 1 watt, and to a large extent, it cannot meet actual needs

Method used

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  • Table type fully solidified high repetition frequency femtosecond laser
  • Table type fully solidified high repetition frequency femtosecond laser
  • Table type fully solidified high repetition frequency femtosecond laser

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0024] see first figure 2 , figure 2 It is a schematic diagram of the structure of the best embodiment of the desktop full-cure high repetition rate femtosecond laser device of the present invention. It can be seen from the figure that the desktop fully solidified high repetition rate femtosecond laser device of the present invention consists of five parts: femtosecond oscillator 01, pulse stretcher 02, regenerative amplifier 03, regenerative amplifier pump source 04 and pulse compressor 05.

[0025] The so-called femtosecond oscillator 01 is a titanium sapphire self-mode-locked oscillator device with an output wavelength of 803nm. The laser cavity is asymmetrical X-shaped, the folding angle is 16°, the titanium sapphire rod is used as the working medium, and the pump source is VERDI-5 semiconductor laser. When the pump power reaches 3.7W, self-sta...

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PUM

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Abstract

The invention is a table-type all-solidified high-repeated frequency fly-second laser device, comprising fly-second pulse oscillator, pulse widening device, regenerative amplifier and pulse compressor, and its character: the pulse widening device is composed of grating, convex lens and concave reflector; the regenerative amplifier is composed of polarizing plate, Pockels cell, highly reflecting concave mirror, Ti-sapphire stick and reflector group; the pumping source of the regenerative amplifier is a Q-switch plane waveguide laser; the pulse width compressor is composed of reflector, two parallel-placed gratings and all reflector. Its output power can be up to 20W, higher 31 times than that of preceding technique, able to be applied to generate super ultraviolet or X rays, and has an extremely wide application prospect in photoetching, optical communication and micro-fabricating technique.

Description

Technical field: [0001] The invention relates to a femtosecond laser device, in particular to a desktop fully solidified high repetition frequency femtosecond laser device. This femtosecond laser device has high commercial value and will have broad application potential in laser advanced manufacturing, X-ray generation and optical communication. Background technique: [0002] The emergence and rapid development of new ultra-short and ultra-intense lasers have provided humans with unprecedented new research methods and application tools. Especially in recent years, desktop femtosecond lasers with high repetition rate and high average power have great application prospects in the industrial field and have received widespread attention from all over the world. [0003] The industrial application of femtosecond laser is mainly ablation processing, which is different from the processing effect of nanosecond laser: because the laser interacts with the workpiece for a short time, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/00
Inventor 陈建文高鸿奕李儒新朱化凤徐至展
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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