Laser beam and optics characterization with Z-scan method

Nelson V. Tabiryan; Vinay Jonnalagadda; Manuel J. Mora; Sarik R. Nersisyan

doi:10.1117/12.472036

30 May 2003 Laser beam and optics characterization with Z-scan method

Nelson V. Tabiryan, Vinay Jonnalagadda, Manuel J. Mora, Sarik R. Nersisyan

Author Affiliations +

Proceedings Volume 4932, Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization; (2003) https://doi.org/10.1117/12.472036
Event: XXXIV Annual Symposium on Optical Materials for High Power Lasers: Boulder Damage Symposium, 2002, Boulder, CO, United States

Abstract

We report about applications of nonlinear optical processes for laser beam and optics characterization. The basic mechanism of the measurements consists in scanning a thin film of a liquid crystal in the focal region of a laser beam and processing the self-phase modulation signal. This technique allows precise and quick determination of the focal waist position and radius, which, in conjunction with the parameters of the focusing system allows determination of the laser beam divergence. We have demonstrated the capabilities of the technique for measuring submicron waist sizes and characterizing astigmatic optical systems. The technique is applicable to short laser pulses. The measurements were performed using the device implementation of the technique, the Crystal Scan Optical Multimeter.

Citation Download Citation

Nelson V. Tabiryan, Vinay Jonnalagadda, Manuel J. Mora, and Sarik R. Nersisyan "Laser beam and optics characterization with Z-scan method", Proc. SPIE 4932, Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization, (30 May 2003); https://doi.org/10.1117/12.472036

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