Related Experiment Video
Updated: Jun 23, 2026
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
Published on: December 18, 2015
Method for characterization of repetitive frequency laser resistance of optical coatings
Dong Zhang1, Hongbo He, Yuanan Zhao
1Key Laboratory of Material Science and Technology for High Power Lasers, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
Abstract:
The characterization of repetitive frequency (S-on-1) laser resistance of optical coatings was investigated experimentally based on damage pattern divided into slight damage and severe damage. It was discovered that, when only the slight damage pattern was counted, a peak would be seen in the damage probability curve, and the laser fluence at this peak was stable as pulse sequence S changed. The stable laser fluence at this peak, therefore, could be employed to characterize the repetitive frequency laser resistance of optical coatings. This method is different from the method proposed by the International Organization for Standardization [ISO 11254-2 (2001)] and has the advantage of simplicity in practical applications. According to our analysis, it is a method that can obtain the functional damage threshold of optics.
