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A novel Q-switched laser and method based on acousto-optic beam combining technology
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A laser and acousto-optic technology, which is applied in the design method and device structure of new Q-switched lasers, can solve the problems of low output pulse single pulse energy and low energy, and achieve high Q-switched pulse output and high energy effects
Active Publication Date: 2021-03-16
武汉市威佳激光有限责任公司
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[0004] Aiming at the defects of the prior art, the object of the present invention is a new type of Q-switched laser based on acousto-optic beam combining technology, which aims to solve the problem that the energy of the existing Q-switched laser is not high when operating at a high repetition rate, and further improve the output pulse single pulse energy The problem
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Embodiment 1
[0042] Embodiment 1 proposes a novel Q-switched laser based on acousto-optic beam combining technology, such as figure 1 As shown, including laser cavity (full return mirror and output mirror), tellurium oxide acousto-optic beam combiner / beam splitter, Brewster polarizer, Nb:YAG laser working substance;
[0043] Among them, ① is the output mirror; ② is the acousto-optic beam combining device; ③ is the arbitrary waveform signal generator; ④ is the Brewster polarizer (both branch 1 and branch 2 are placed); ⑤ is the Yb:YAG laser working material (branch 1, both branch roads are placed); ⑥ is a full mirror (branch road one, branch road two are placed);
[0044]The basic structure of the laser cavity is a "Y" shape, and there are three parts: the main cavity, the branch 1 and the branch 2. The full reflection mirror is located in the cavity branch, and both the branch 1 and the branch 2 are placed. The output mirror is located in the main cavity of the cavity and is used for the ...
Embodiment 2
[0051] Embodiment 2 proposes a novel Q-switched laser based on acousto-optic beam combining technology, such as image 3 As shown, including laser cavity (full return mirror and output mirror), tellurium oxide acousto-optic beam combiner / beam splitter, Brewster polarizer, Yb:YAG laser working substance;
[0052] Among them, ① is a total reflection mirror; ② is an acousto-optic beam combining device; ③ is an arbitrary waveform signal generator; ④ is a Brewster polarizer (both branch 1 and branch 2 are placed); ⑤ is Yb:YAG laser working material (branch Road one, branch two are all placed); ⑥ is the output mirror (branch one, branch two are all placed);
[0053] The basic structure of the laser cavity is "Y" shape, and there are three parts: main cavity, branch 1 and branch 2. The output mirror is located in the cavity branch, and both branch 1 and branch 2 are placed. For the output of the laser, the total reflection mirror is located in the trunk of the cavity;
[0054] The ...
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Abstract
The invention relates to a novel Q-switched laser based on acousto-optic beam combining technology and a debugging method thereof. The laser comprises a laser cavity, and a total reflection mirror andan output mirror arranged in the laser cavity, an acousto-optic beam combining / splitting device is arranged between the total reflection mirror and the output mirror, and a polarization control device is arranged between the total reflection mirror and the output mirror; a laser working substance is arranged between the acousto-optic beam combining / splitting device and the total reflection mirroror between the acousto-optic beam combining / splitting device and the output mirror; and the output of the waveform signal generator is connected with the input of the acousto-optic beam combining / splitting device. Through the acousto-optic beam combining / splitting device, pulses of two cavity branches are combined together, and Q-switched pulse output with higher energy can be realized; and the acousto-optic beam combining / splitting device is utilized, so that the laser cavity can realize other functions.
Description
technical field [0001] The invention belongs to the field of Q-switched pulsed lasers, and more specifically relates to a design method and device structure of a novel Q-switched laser based on acousto-optic beam combining technology. Background technique [0002] The emergence of Q-switching technology is an important breakthrough in the history of laser development. Q-switching technology mainly has two directions: narrow-width Q-switching pulses promote the development of laser radar, high-speed holography and other application technologies; high-power Q-switching pulses promote the development of nonlinear optics. So far, people are still making continuous efforts to advance in the direction of extremely narrow pulse width and extremely high power. [0003] Q-switching technology is divided into active Q-switching and passive Q-switching. Passive Q-switching technology has simple components, but fewer control methods; active Q-switching technology is divided into elect...
Claims
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