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Gain medium multiplexed slice hybrid amplification laser and laser output method thereof

A technology of gain medium and output method, which is applied in the direction of lasers, laser components, and the structure/shape of active media, and can solve problems such as increasing system complexity

Pending Publication Date: 2020-02-25
NANJING INST OF ADVANCED LASER TECH
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Problems solved by technology

[0006] In the paper Negel J P, Voss A, Ahmed M A, et al.1.1kW average output power from a thin-disk multipass amplifier for ultrashort laser pulses[J]. The pulse amplified by the pre-amplification stage is multi-pass traveling wave amplification. This scheme can actually amplify the average laser power to the kilowatt level. However, this configuration increases the complexity of the entire system.

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  • Gain medium multiplexed slice hybrid amplification laser and laser output method thereof

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Embodiment Construction

[0026] see figure 1 , a gain medium multiplexed lamella hybrid amplifying laser according to an embodiment of the present invention includes: a seed laser 1 for injecting the amplifier seed light; a first lens 2, a second lens 3, a first polarizer 4, a Faraday Optical rotator 5, half-wave plate 6, second polarizer 7, quarter-wave plate 8, electro-optic crystal 9, second end mirror 10, first folding mirror 11, second folding mirror 12, third folding mirror 13 , the fourth folding mirror 14, the first end mirror 15, 16-optical isolator 16, the third lens 17, the fourth lens 18, the fifth folding mirror 19, the sixth folding mirror 20, and the seventh folding mirror 21.

[0027] The laser beam sequentially passes through the first lens 2, the second lens 3, the first polarizer 4, the Faraday rotator 5, the half-wave plate 6, and the second polarizer 7 to enter the regenerative amplifier, and then passes through the first folding mirror 11 and the second folding mirror. The mirro...

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Abstract

The invention provides a gain medium multiplexed slice hybrid amplification laser. The laser comprises a seed laser for injecting amplifier seed light. The laser beam sequentially passes through a first lens, a second lens, a first polarizing film, a Faraday rotator and a half-wave plate and then entersa regenerative amplifier. The laser beam is subjected to oscillating and amplifying in the regenerative amplifier and then enters a traveling wave amplifier through the half-wave plate, the Faraday rotator and the first polarizing film. The traveling wave amplifier and the regenerative amplifiershare a slice gain module. The invention further provides a laser output method. The device and the method are compact in structure and high in comprehensive light efficiency.

Description

technical field [0001] The invention relates to a thin slice laser amplifier, in particular to a regenerative and traveling wave mixed amplifier laser multiplexed by gain media. Background technique [0002] Thin-sheet lasers are an important development direction of high-average-power lasers. The heat dissipation characteristics of laser media are an important factor affecting the development of high-power lasers. Thin-sheet lasers use crystals with a thickness of 100-200 μm as gain media. The diamond with the highest thermal conductivity is welded, so that the heat in the crystal can be efficiently transferred to the heat sink; in addition, with the support of backside cooling technology and end-face flat-top pump light, this structure can produce , Almost uniform axial one-dimensional heat flow, which can reduce thermal lens effect and heat deposition in the gain medium, so that high efficiency and high beam quality can be maintained while obtaining high-power laser outpu...

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Application Information

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IPC IPC(8): H01S3/06G02F1/39G02F1/09G02B27/28
CPCH01S3/0604G02F1/093G02F1/39G02B27/283G02F1/09H01S3/06G02B27/28
Inventor 陆俊于广礼丁建永姚红权杨彬杨磊杨润兰周军
Owner NANJING INST OF ADVANCED LASER TECH
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