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High repetition frequency narrow pulse width semiconductor pumping green laser

A high repetition frequency, semiconductor technology, applied in the field of lasers, can solve the problems of outputting two green beams, wide pulse width, pulse tailing, etc., and achieve the effect of strong environmental adaptability, narrow pulse width and high repetition frequency

Active Publication Date: 2010-06-02
深圳华工新能源装备有限公司
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Problems solved by technology

However, most of the resonant cavities currently used are straight-line cavities. In order to form frequency-doubling oscillation output, a high-inverse second-harmonic mirror needs to be inserted into the straight cavity. However, inserting components in the cavity will bring additional losses and easily cause double output. green light phenomenon
At present, the green laser produced by green lasers often has shortcomings such as wide pulse width, serious pulse tailing, and poor beam quality, and the conversion efficiency from infrared fundamental frequency light to frequency-doubled green light in the prior art is low, which is not conducive to the industry. Applications

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Embodiment Construction

[0012] The structural features and attainable effects of the present invention will now be described in detail as follows in conjunction with the accompanying drawings and specific embodiments.

[0013] The high repetition frequency and narrow pulse width semiconductor pump green laser of the present invention is used to generate green light, which includes two sets of pump coupling focusing systems 1 and a resonant cavity 2, and the two sets of pump coupling focusing systems 1 are respectively located in the resonant cavity 2 The two ends of the two ends, and the pump light emitted by the pump coupling focusing system 1 enters the laser working material in the resonant cavity 2 with double-end surface pumping. The pump coupling focusing system 1 includes a pump light source 10, a plano-convex collimating mirror 11, a plano-convex mirror 12 and a plano-convex focusing mirror 13, wherein the plano-convex collimating mirror 11 and the plano-convex focusing mirror 13 are lenses, a...

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Abstract

The invention discloses a high repetition frequency narrow pulse width semiconductor pumping green laser which comprises two groups of pumping coupled focus systems and a cavity resonator, wherein the two groups of pumping coupled focus systems are respectively positioned at both ends of the cavity resonator; and pumping light emitted by the pumping coupled focus systems enters into a laser work crystal in a two-face pumping cavity resonator in the cavity resonator. By adopting the high repetition frequency narrow pulse width semiconductor pumping green laser of the invention, the produced green laser beam has good quality, and the transfer efficiency is high.

Description

technical field [0001] The invention relates to a laser, in particular to a semiconductor pumped green laser with high conversion efficiency and good beam quality, high repetition frequency and narrow pulse width. Background technique [0002] Compared with ordinary light sources, laser has the characteristics of good directionality, good coherence and high brightness. Therefore, laser is widely used in various fields such as modern industry, agriculture, medicine, and national defense. Since the wavelength of the green laser is smaller than that of the infrared laser, and the frequency is greater than that of the infrared laser, the focused spot of the green laser is smaller than that of the infrared laser, and the energy of a single photon of the green laser is greater than that of a single photon of the infrared laser. When interacting with other substances, the green laser The heat-affected area of ​​the laser is small, and because the green laser can be directly observe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16H01S3/0941H01S3/081
Inventor 卢飞星闵大勇
Owner 深圳华工新能源装备有限公司
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