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Solid-state laser with different frequencies and fixed pulse width and operating method

A solid-state laser and laser technology, applied in the field of lasers, can solve the problems of low pump power and low light output energy, and achieve the effect of high energy output

Pending Publication Date: 2018-09-11
国科世纪激光技术(天津)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the biggest problem with doing this is that the pump power is low at low repetition frequency, and the output light energy is low, so it becomes meaningless

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  • Solid-state laser with different frequencies and fixed pulse width and operating method

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0013] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0014] This application provides a solid-state laser with constant pulse width. The so-called constant pulse width can ensure the invariance of the pulse width within a certain frequency range, and can use the highest pump power, so that the highest energy output can be achieved no matter in low repetition frequency or high repetition frequency. Constant pulse lasers are mainly used in environments with strict pulse width requirements such as extracavity frequency doubling, ultraviolet exposure, PCB board cutting...

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Abstract

The invention discloses a solid-state laser with different frequencies and fixed pulse width and an operation method. The laser includes a rear reflector A, a plano-convex lens B, a low-pass optical filter C, a laser crystal D, an acousto-optic Q switch E, and an output mirror F of the laser. The rear reflector A of the laser is placed on an electric translation table H, and the length of a lasercavity is changed by change of the position of the rear reflector A of the laser. The invention provides a solid-state laser with constant pulse width, can guarantee the invariance of pulse width in acertain frequency range, and can use the highest pumping power at both low and high repetition frequencies, so that the highest energy output can be achieved at both low and high repetition frequencies.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a solid-state laser with different frequency and fixed pulse width and an operation method. Background technique [0002] Solid-state lasers have the advantages of fast light frequency, high peak power, and stable light state, so they are widely used in ranging, tracking, guidance, drilling, cutting and welding, annealing of semiconductor materials, micromachining of electronic devices, atmospheric monitoring, spectral research, Surgical and ophthalmic procedures, pulse holography and many other aspects. [0003] The pulse width of a solid-state laser usually changes with the pump power, Q-switching frequency, and cavity length. For solid-state lasers without MOPA, if the pulse width of the light output remains unchanged, all the parameters of the laser can usually be recorded, and the pulse width of the laser is consistent by controlling the pump power and light output frequency...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/139
CPCH01S3/139H01S3/1394
Inventor 朱光王家赞
Owner 国科世纪激光技术(天津)有限公司