15 August 1998 Laser beam quality factor M2 and its measurement
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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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yanxiong Niu, Yanxiong Niu, Yuefeng Wang, Yuefeng Wang, Xin Liu, Xin Liu, Chu Zhang, Chu Zhang, Shoushen Zhu, Shoushen Zhu, "Laser beam quality factor M2 and its measurement", Proc. SPIE 3550, Laser Processing of Materials and Industrial Applications II, (15 August 1998); doi: 10.1117/12.317915; https://doi.org/10.1117/12.317915


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