Frequency doubling laser
A frequency doubling laser and laser technology, applied in the field of frequency doubling lasers, can solve the problems of difficult adjustment of the separation cavity structure, poor heat dissipation performance, poor shock resistance, etc., and achieve the effect of being suitable for mass production, reducing volume and easy assembly
Inactive Publication Date: 2014-03-12
SHANGHAI SANXIN TECH DEV
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Problems solved by technology
However, the separation chamber structure in this patent is not easy to adjust, and the contact surface is small, and the heat dissipation performance is not good
[0004] In addition, the current adjustment method of the existing laser resonator is mostly fixed in the product by the adjustment frame. The adjustment frame is used to adjust the parallelism of the surface of the optical components forming the optical resonator in the cavity. The stability of this structure is affected by many factors such as the environment. impact, and poor performance in terms of earthquake resistance
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[0011] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0012] figure 1 is a schematic structural diagram of a frequency-doubled laser according to the first embodiment of the present invention. Such as figure 1 As shown, the frequency doubling laser of the present invention includes a semiconductor laser 101, a coupling lens 201, a laser crystal 301, a frequency doubling crystal 403, a thermoelectric cooler (TEC) 501, and a ball groove support 401 with a laser crystal 301 and a doubler The spherical heat sink 402 of the frequency crystal 403.
[0013] Among them, the semiconductor laser 101 can excite the laser crystal 301 to provide a pump source for frequency-doubled lasers, including but not limited to single-mode semiconductor lasers, multi-mode semiconductor lasers, wavelength-locked semiconductor lasers, etc., and the wavelengths include but not limited to 808nm, 940nm, etc. The coupling len...
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The invention relates to a frequency doubling laser comprising a semiconductor laser, a coupling lens, a laser crystal, a frequency doubling crystal, a thermoelectric cooler, a ball groove support equipped with the laser crystal and a globular heat sink equipped with the frequency doubling crystal. The semiconductor laser, the coupling lens, the laser crystal and the frequency doubling crystal are coaxially disposed. Outer end faces of the laser crystal and the frequency doubling crystal are coated with a suitable laser film system to constitute a laser resonant cavity. The semiconductor laser acts as a pump source; and the outputted pump light thereof enters into the laser crystal after passing through the coupling lens, is then subjected to feedback effect of the resonant cavity after excitation of the laser crystal, and outputs frequency-doubled light through frequency doubling by the frequency doubling crystal. The frequency doubling Laser has a series of advantages of being easy to adjust, small in size, good in thermal performance, easy to assemble, simple in internal structure, high in power, suitable for mass production and the like.
Description
technical field [0001] The invention relates to a frequency doubling laser, in particular to a novel frequency doubling laser with adjustable structure integral temperature control. Background technique [0002] At present, small lasers are used in many fields, such as laser display, optical storage, laser aiming, remote sensing communication, etc. However, ordinary small-scale semiconductor-pumped solid-state lasers, especially intracavity frequency-doubling lasers, all adopt bonded crystal structures. Bonded crystals are a composite technology of laser crystals. Since most optical crystals have high melting points, it usually requires High-temperature heat treatment promotes the mutual diffusion and fusion of molecules on the surface of two crystals that have undergone precise optical processing, and finally forms a more stable chemical bond, achieving true diffusion bonding. [0003] Although the bonded crystal has a compact structure, the output power, crystal pass rate...
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Inventor 李存法李潜
Owner SHANGHAI SANXIN TECH DEV