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High power solid-state optical amplification process and system

一种放大系统、光学放大的技术，应用在激光器、激光器装置、激光器零部件等方向

Active Publication Date: 2012-05-16
AMPLITUDE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aging of polymers and absorbing materials when exposed to highly repetitive laser pulses is unknown

Method used

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  • High power solid-state optical amplification process and system
  • High power solid-state optical amplification process and system
  • High power solid-state optical amplification process and system

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Embodiment Construction

[0063] figure 1 is a cross-sectional view of a large aperture amplifying crystal 1 with propagating longitudinally propagating and counterpropagating pump beams 3,4. In general, the crystal 1 is right-cylindrical with a disk-shaped surface of diameter φ, thickness L and optical axis 2 . The crystal 1 is pumped longitudinally by one or two longitudinal pump beams 3, 4 for pumping the crystal through two planes. Fluorescent beams can propagate inside the crystal and be reflected off flat and / or outer surfaces. Losses, eg due to diffusion, can occur on the inner surface. However, for a Ti:Sa crystal with reflection coefficient n=1.76, if the incident angle of the beam is greater than 36 degrees, the beam is totally reflected (reflection coefficient R=1) and transverse lasing 5 occurs inside the crystal 1 .

[0064] For reference and future comparison with a dual crystal multipass system and with an embodiment of the present invention, a prior art single crystal amplification s...

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Abstract

The invention concerns a high power solid-state non-regenerative optical amplification system (100) for amplifying a pulsed optical beam, comprising a first optical amplification crystal (C-1) and a second optical amplification crystal (C2) for amplifying said optical beam; optical pumping means for longitudinal pumping amplification crystals (C-1, C2); reflective optical means (M'1, M'2,..., M'17) suitable for reflecting the optical beam so that the optical beam makes a total number of N sequential passes through said amplification crystals (C1, C2), wherein N is an integer and N > 4. According to the invention, the reflective optical means (M'1, M'2,..., M'17) are placed in a configuration suitable for alternatively interleaving the sequential optical beam passes through the 1st crystal (C1) and through the 2nd crystal (C2). The invention also concerns a solid-state laser comprising an amplification system according to the invention, and a method for amplifying a pulsed optical beam in a two-crystal multi-pass non-regenerative amplification system of the invention.

Description

technical field [0001] The present invention relates to high power optical amplification systems and methods. More specifically, the present invention relates to optical amplifiers based on solid-state gain media such as doped glasses or crystals and methods for increasing output energy without transverse lasing. Background technique [0002] There are two main types of solid-state amplification systems for high-energy ultrashort pulses: regenerative amplifiers and multipass amplifiers. A regenerative amplifier includes an optical system forming a resonant cavity containing a gain medium. In a regenerative amplifier, the number N of times the beam passes through the gain medium is important (N > 10). In contrast, multi-pass amplifiers typically include a thin high-gain medium and an optical system that only allows the beam to be amplified to pass through the gain medium a limited number of times (N=2-8). The present invention relates to multi-pass non-regenerative ampli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/23H01S3/094H01S3/081
CPCH01S3/0604H01S3/2325H01S3/2316H01S3/07
Inventor L·维格鲁克斯P-M·保罗F·普勒
Owner AMPLITUDE CORP
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