Developing measurement system for Laser beam quality factors

• Main Authors: Chiu,Yung-Lun, 邱泳倫
• Other Authors: Chen, Yung-Fu
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/21023318450993833301

碩士 === 國立交通大學 === 理學院應用科技學程 === 102 === We develop a laser beam quality measurement system which can choose the optimal conditions for the measuring process. An automatic program has been build up for the system to directly measure the beam quality factor. Furthermore, the program can be operated on the engineering mode for optimizing the measuring elements. With this system, we obtain the M2 factors of He-Ne laser, 914 nm solid-state laser, edge-emitting laser diode and fiber-coupled laser diode. Moreover, we also confirm the relation between M2 factor and the high order Gaussian mode laser beam in an end-pumped solid-state system.