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High-power femtosecond fiber laser device

A high-power, laser technology, used in lasers, laser components, phonon exciters, etc., can solve problems such as gaps in overall performance and stability, and achieve suppression of nonlinear effects, system simplicity, and strong tolerance. Effect

Active Publication Date: 2016-03-23
CHONGQING HUAPU INTELLIGENT EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Benefiting from the increased government policy support and the opening of the application market, the domestic fiber laser industry is booming like mushrooms after rain. However, limited by the blockade of foreign core technologies and material devices, the overall performance and stability of domestic fiber laser products There is still a gap between the products of some foreign companies and other aspects

Method used

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  • High-power femtosecond fiber laser device
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  • High-power femtosecond fiber laser device

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Embodiment

[0054] refer to figure 1 , The central wavelength of the spectrum of the high-power fiber laser of the present invention is 1064nm, the pulse repetition frequency is 500kHz, the average power is 10W, the single pulse energy is 20μJ, the pulse width is <500fs, and the pulse peak power is 40MW.

[0055] The laser includes a circuit part 1100 and an optical path part 1200 .

[0056] The circuit part 1100 is composed of a circuit board 1110, an acousto-optic modulation driver 1120 and 8 pumping sources. The circuit board 1110 is powered by an external power supply. A low-power pump control module 1111 and an acousto-optic modulation driver are fixed on the circuit board 1110. The control module 1112 and the high-power pump control module 1113, the acousto-optic modulation driver control module 1112 is connected to the acousto-optic modulation driver 1120; the low-power pump control module 1111 is connected to four low-power pumps ld 1 、ld 2 、ld 3 and ld 4 ; High-power pump con...

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Abstract

The invention discloses a high-power femtosecond fiber laser device, which comprises a circuit and a light path, wherein the circuit comprises a circuit board, an acousto-optic modulation driver and a plurality of semiconductor diodes as pumps; the light path comprises an oscillator, a first coupler, a first-stage preamplifier, an acousto-optic modulator, a second coupler, a second-stage preamplifier, a separated pulse amplifier, a first pulse compressor, a main amplifier and a second pulse compressor; and the devices of the light path are sequentially connected with one another along the light path. The high-power femtosecond fiber laser device has irreplaceable advantages in the aspects of high-precision laser cutting, high-precision laser deep welding, special material surface treatment and the like; and the specific application comprises sapphire and toughened glass cutting, cardiovascular stent construction, high-precision machining of a thin-film solar cell and the like.

Description

technical field [0001] The invention relates to a fiber laser, in particular to a high-power femtosecond fiber laser used in industrial processing. Background technique [0002] As a new generation of laser technology, fiber laser is being developed due to its excellent output beam quality, good heat dissipation performance, high photoelectric conversion efficiency, simple and convenient structure, high reliability, maintenance-free and long service life. Cannibalizing the market for other types of lasers. The fiber laser products that have been formed cover material processing, medical treatment, printing, radar, communication, laser cutting, precision machining, printing roll making, metal and non-metal drilling / cutting / welding, industrial shipbuilding, large-scale infrastructure, aerospace, In many fields such as military defense and security, the market demand for fiber lasers is also increasing. Benefiting from the increased government policy support and the opening o...

Claims

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Application Information

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IPC IPC(8): H01S3/067H01S3/0941H01S3/11
CPCH01S3/06791H01S3/0941H01S3/1106
Inventor 郭政儒郝强曾和平
Owner CHONGQING HUAPU INTELLIGENT EQUIP CO LTD
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