Design and application of a laser beam alignment system based on the imaging properties of a multi-p

• 作 者: 刘代中 吕凤年 曹金洲 徐仁芳 朱健强 范滇元 肖剑波 周晓军
• 机 构: National Laboratory on High Power Laser and Physics Shanghai Institute of Optics and Fine Mechanics,
• 出 处: Chinese Optics Letters
• 发表日期: 2006年10期
• 关键词: amplifier alignment automatically summarizing sized filed mirrors aligned protot

Image relaying is presented as a technique for aligning beams onto mm-sized target of high power laser. On the basis of summarizing the preceeding work on the near-field image relaying of multiple spatial filters, the far-filed image relaying is suggested firstly. The near-field and far-field image relaying properties of multiple spatial filters in laser beams automatic alignment system are analyzed. A geometrical optics approach and an ABCD ray matrix theory are used throughout. The reasonable and optimum scheme for automatically aligning multi-pass beam paths is presented and demonstrated on the multi-pass amplifier system of the SG-Ⅲprototype.

Image relaying is presented as a technique for aligning beams onto mm-sized target of high power laser. On the basis of summarizing the preceeding work on the near-field image relaying of multiple spatial filters, the far-filed image relaying is suggested initially. The near-field and far-field image relaying properties of multiple spatial filters in laser beams automatic alignment system are analyzed. A geometrical optics approach and an ABCD ray matrix theory are used throughout. The reasonable and optimum scheme for automatically aligning multi-pass beam paths is presented and demonstrated on the multi-pass amplifier system of the SG-III prototype.