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2015•Chinese Optics LettersOpen access

Online determination of the source of stray light in the SG-III high-power laser facility

Dandan Zhou, Yuanchen Wang, Xuewei Deng, Wei Zhou, Wei Zhong, Huaiting Jia, Fan Zhang, Huaiwen Guo, 东霞 胡

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Abstract

Stray light in high-power laser facilities not only decreases the gain capacity of the main amplifier, but can also cause permanent damage to optical components, greatly threatening the safety operation of the SG-III.This Letter reports a technique for quickly pinpointing the source of stray light in the main amplification optical path of the SG-III.The achieved results indicate that the accuracy of our method is up to 1 m in an optical path of 100 m.The judging method is effective for examining and removing harmful stray light in the SG-III laser facility and it can be promoted in huge laser facilities of this kind.

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Stray light in high-power laser facilities not only decreases the gain capacity of the main amplifier, but can also cause permanent damage to optical components, greatly threatening the safety operation of the SG-III.This Letter reports a technique for quickly pinpointing the source of stray light in the main amplification optical path of the SG-III.The achieved results indicate that the accuracy of our method is up to 1 m in an optical path of 100 m.The judging method is effective for examining and removing harmful stray light in the SG-III laser facility and it can be promoted in huge laser facilities of this kind.

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Available abstract

Stray light in high-power laser facilities not only decreases the gain capacity of the main amplifier, but can also cause permanent damage to optical components, greatly threatening the safety operation of the SG-III.This Letter reports a technique for quickly pinpointing the source of stray light in the main amplification optical path of the SG-III.The achieved results indicate that the accuracy of our method is up to 1 m in an optical path of 100 m.The judging method is effective for examining and removing harmful stray light in the SG-III laser facility and it can be promoted in huge laser facilities of this kind.

Key concepts: Stray light, Optics, Light source, Laser, Optical path, Amplifier, Optical path length, Power (physics)

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