Measurement of far-field divergence angle for high-power laser facility with phi 250-mm aperture

Tingting Zhi; Kuixi Huang; Mingyi Ling; Zunqi Lin; Yuguang Xu

doi:10.1117/12.328560

29 October 1998 Measurement of far-field divergence angle for high-power laser facility with Φ 250-mm aperture

Tingting Zhi, Kuixi Huang, Mingyi Ling, Zunqi Lin, Yuguang Xu

Proceedings Volume 3429, Current Developments in Optical Design and Engineering VII; (1998) https://doi.org/10.1117/12.328560
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

In this article, we present a laser far-field CCD diagnostic device, which consists of optical system with (Phi) 250 mm aperture, the CCD image receive system connecting with a computer and a single pulse synchronous trigger system. The collected images are processed and displayed in real time by computer. A quasi-ideal plane wave at 1060 nm is used to test the characters of this diagnostic device. The experimental result shows that size of focal spot encompassing 70% laser energy is about 2.5 times of diffraction limit. The device has been successfully applied to high power laser facility. According to the practical measurement, the far-field divergence angle is less than 14 times of diffraction limit when output of high power laser facility is 200 J each beam.

Citation Download Citation

Tingting Zhi, Kuixi Huang, Mingyi Ling, Zunqi Lin, and Yuguang Xu "Measurement of far-field divergence angle for high-power laser facility with Φ 250-mm aperture", Proc. SPIE 3429, Current Developments in Optical Design and Engineering VII, (29 October 1998); https://doi.org/10.1117/12.328560

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