End-pump multi-pass lath laser amplifier
A laser amplifier and laser technology, applied in lasers, laser parts, laser optical equipment, etc., can solve the problems of difficult installation or integration, large system structure size, etc., to reduce system volume and weight, improve reflectivity, reduce The effect of small system size
Pending Publication Date: 2020-03-27
NANJING INST OF ADVANCED LASER TECH
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Problems solved by technology
[0004] At present, a laser amplifier is needed to combine the slab crystal and end pumping technology to realize the common MOPA technology of different wavelength laser amplification. At the same time, the system structure size of the existing equipment is large, and it is difficult to install or integrate. Therefore, it is necessary to upgrade the existing laser amplification device. make improvements
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[0022] The present invention will be further explained and described below in conjunction with the accompanying drawings.
[0023] as attached figure 1 As shown, the present invention discloses an end-pumped multi-pass slab laser amplifier, including a pumping semiconductor laser 1, a laser shaping optical path 2, a slab laser crystal 3, a laser reflection optical path 4 and a heat sink 5; wherein the slab laser crystal 3. The laser reflection optical path 4 and the heat sink 5 form a slab amplifier.
[0024] There are pumping semiconductor lasers 1 under both ends of the slab laser crystal 3 respectively. The pumping semiconductor lasers 1 are semiconductor laser arrays. The wavelength is selected according to the crystal material, such as 808nm, 880nm, etc. The specific model can be FL-VS300-Nx1-100xN -808-Y, also can be FL-6S05-Nx1-100xN-808(Q), the array structure is conduction cooling stack or water cooling vertical stack; pumping semiconductor laser 1 has high pumping e...
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The invention discloses an end-pumped multi-pass lath laser amplifier, which comprises a pumped semiconductor laser, a laser shaping light path, a lath laser crystal, a laser reflection light path anda heat sink, pump semiconductor lasers are arranged below the two ends of the lath laser crystal respectively, a laser shaping light path is arranged between the lath laser crystal and the pump semiconductor lasers, and the pump semiconductor lasers and the laser shaping light path are coaxially arranged. Laser reflection light paths are respectively arranged above two ends of the lath laser crystal; and heat sinks are respectively fixed on the upper and lower surfaces of the lath laser crystal. According to the invention, a double-sided end pumping and multi-pass amplification mode is adopted; the slab amplifier is suitable for the common MOPA technology of laser amplification of different wavelengths, on the basis of improving the system efficiency and the light beam quality, the systemstructure size is reduced, the reliability is improved, the slab amplifier is simple and compact in structure and easy to install, adjust and integrate, the system size and weight are reduced, and engineering and productization are facilitated.
Description
technical field [0001] The invention relates to the field of solid-state lasers, in particular to an end-pump multi-pass slab laser amplifier. Background technique [0002] High-power and high-energy lasers are widely used in national defense, scientific research, industry, medical treatment and other fields. The use of lasers for long-term scientific research has gradually become an important tool to solve various engineering and scientific problems. High power and high energy is an important development direction of laser technology, and the depth and breadth of research and application are constantly expanding. Master Oscillator Power Amplification (MOPA), as the core technology of high-power lasers, has received a lot of attention. The laser amplifier is based on the principle of stimulated radiation, and the input laser takes a single or multiple passes through the gain medium in the amplifier to obtain laser energy amplification. The laser amplifier at high power wil...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01S3/0941H01S3/042H01S3/16H01S3/00
CPCH01S3/005H01S3/042H01S3/09415H01S3/163
Inventor 丁建永于广礼肖湖福姚红权马秀华
Owner NANJING INST OF ADVANCED LASER TECH