Femtosecond laser for material processing

A femtosecond laser and material processing technology, which is applied in the field of lasers, can solve the problems of slow processing speed and achieve the effect of high precision and reduced volume

Inactive Publication Date: 2015-11-25
TIANJIN NAZHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since material processing requires instantaneous ultra-high power, the femtosecond lasers used in the market for material processing have only one laser output channel, and the processing speed is slow.

Method used

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  • Femtosecond laser for material processing

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Embodiment

[0023] like figure 1 As shown, a femtosecond laser for material processing includes a laser housing 1, a pulsed light source 2, and an optical resonant cavity 3. The pulsed light source 2 and the optical resonant cavity 3 are fixed in the laser housing 1, and the pulsed light source 2 is located on the side of the optical resonant cavity 3. One side and the two are arranged in parallel, and the inside of the laser housing 1 is also provided with a double mirror refraction block 4, a total reflection mirror 5, a half reflection mirror 6, a prism A7, an optical axis drift correction lens 8, a prism B9, and a beam splitter 10 , thin lens A11, frequency doubling crystal A12, laser output coupling mirror A13, focusing lens A14, thin lens B15, frequency doubling crystal B16, laser output coupling mirror B17, focusing lens B18, double mirror refraction block 4 fixed on the pulse light source 2, One side of the optical resonant cavity 3, the centers of the total reflection mirror 5, t...

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Abstract

The invention belongs to the field of lasers, and particularly relates to a femtosecond laser for material processing, and is characterized in that a bimirror refraction block is fixed at one side of a pulse light source and an optical resonator, a totally-reflecting mirror is fixed between the bimirror refraction block and the optical resonator, a semi-reflecting mirror, a prism A, an optical axis drift correction lens, a prism B and a beam splitter are fixed at the other side of the optical resonator in sequence, a thin lens A, a frequency doubling crystal A, a laser output coupling mirror A and a focusing lens A are fixed at one side of the beam splitter in sequence, a thin lens B, a frequency doubling crystal B, a laser output coupling mirror B and a focusing lens B are fixed at the other side of the beam splitter in sequence, laser output ports arranged on a laser shell and extends outward to form laser output port fixing trays, reflectors are fixed outside the laser output ports respectively, and fixing groove covers of reflector shells sleeve the outside of the laser output port fixing trays and are fastened through bolts.

Description

technical field [0001] The invention belongs to the field of lasers, in particular to a femtosecond laser for material processing. Background technique [0002] Femtosecond laser is a kind of laser that operates in the form of pulses. It has three characteristics: 1) Short duration: the duration of femtosecond laser is only a few femtoseconds (1 femtosecond = 10 -15 second), which is thousands of times shorter than the shortest pulse obtained by electronic methods, and is the shortest pulse that humans can obtain under experimental conditions; 2) High instantaneous power: femtosecond laser has very high instantaneous power, It can reach one million gigawatts; 3) Strong focusing effect: the femtosecond laser can be focused to a space area smaller than the diameter of a hair, so that the intensity of the electromagnetic field is several times higher than the force of the atomic nucleus on its surrounding electrons. With its unique ultra-short duration and ultra-strong peak po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/10H01S3/101
Inventor 蔡元学姜春香
Owner TIANJIN NAZHENG TECH
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