Laser beam quality factor M2 and its measurement

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

doi:10.1117/12.317915

15 August 1998 Laser beam quality factor M² and its measurement

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

Proceedings Volume 3550, Laser Processing of Materials and Industrial Applications II; (1998) https://doi.org/10.1117/12.317915
Event: Photonics China '98, 1998, Beijing, China

Abstract

The factor M² is a new parameter to describe the laser beam quality, it can characterize the propagation of the fundamental and higher-order mode beam quantitatively. An automatic measurement system has been developed which is capable of measuring the laser beam quality factor M². In the paper, the concept and the measurements of the factor M² are mentioned, the measurement results and tolerance limits are given.

Citation Download Citation

Yanxiong Niu, Yuefeng Wang, Xin Liu, Chu Zhang, and Shoushen Zhu "Laser beam quality factor M² and its measurement", Proc. SPIE 3550, Laser Processing of Materials and Industrial Applications II, (15 August 1998); https://doi.org/10.1117/12.317915

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