Laser & Optoelectronics Progress, Volume. 48, Issue 9, 91405(2011)
Analysis and Control of Self-Excitation Oscillation in TIL of the SG-Ⅲ Facility
In the pre-amplifier of high power laser facilities, more than 106 gain is produced by the high gain amplifier, in which self-excitation oscillation would be easily formed. Based on the theory of self-excitation oscillation, the gain and loss in the system are analyzed, and the self-excitation problems in the high gain amplifiers of TIL of the SG-Ⅲ facility are studied. There self-excitation cavities would possibly exist in the system. Using the methods including tilting the ends of Ndglasses, adjusting the beam, utilizing isolations and electro-optical switches, the self-excitation oscillation is controlled. These suppression methods are validated in experiments.
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Lu Zhenhua, Hao Xin, Tang Jun, Deng Qinghua, Luo Yiming, Gao Song, Ding Lei. Analysis and Control of Self-Excitation Oscillation in TIL of the SG-Ⅲ Facility[J]. Laser & Optoelectronics Progress, 2011, 48(9): 91405
Category: Lasers and Laser Optics
Received: Feb. 27, 2011
Accepted: --
Published Online: Jul. 25, 2011
The Author Email: Zhenhua Lu (luzhenhua336@126.com)