Laser beam quality factor M2 and its measurement

Niu Yanxiong; Wang Yuefeng; Liu Xin; Zhang Chu; Zhu Shoushen

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LASER TECHNOLOGY > 1999 > 23(1): 38-41.

Niu Yanxiong, Wang Yuefeng, Liu Xin, Zhang Chu, Zhu Shoushen. Laser beam quality factor M2 and its measurement[J]. LASER TECHNOLOGY, 1999, 23(1): 38-41.

Citation:

Niu Yanxiong, Wang Yuefeng, Liu Xin, Zhang Chu, Zhu Shoushen. Laser beam quality factor M2 and its measurement[J]. LASER TECHNOLOGY, 1999, 23(1): 38-41.

Citation:

Niu Yanxiong, Wang Yuefeng, Liu Xin, Zhang Chu, Zhu Shoushen. Laser beam quality factor M2 and its measurement[J]. LASER TECHNOLOGY, 1999, 23(1): 38-41.

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Laser beam quality factor M2 and its measurement

1.
College of Ordnance Engineering, Shijiazhuang, 050003;
2.
School of Ordnance Engineering, Wuhan, 430064

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Received Date: November 30, 1997
Revised Date: April 04, 1998
Published Date: January 24, 1999

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Abstract

The quality factor of a laser beam often is characterized by parameter M2.In our measurement system,we employed a CCD sensor to detect the beam profiles at different location in beam propagation direction,then utilized the data identification to calculate factor M2.This paper give out the measurement results and tolerance limits.
- beam quality factor,
- times-diffraction-limited,
- beam waist,
- beam width

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[1]	吕百达.激光光学.成都:四川大学出版社,1992
[2]	吕百达,张彬,蔡邦维.激光技术,1992;16(5):278
[3]	陆治国.激光杂志,1995;16(2):53
[4]	Johnston T F.L F Word,1990;5:173
[5]	陈培峰,王英,彭渤et al.激光与光电子进展,1996;3:11
[6]	Ruff J A,Siegman A E.Appl Opt,1992;31(24):4907

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