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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 19 — Sep. 17, 2007
  • pp: 11763–11768

On-line beam diagnostic method for high energy laser with large beam profile

Shao-wu Chen, Qun-shu Wang, and Hong Zhao  »View Author Affiliations

Optics Express, Vol. 15, Issue 19, pp. 11763-11768 (2007)

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A novel on-line beam diagnostic method for continuous-wave high energy laser (HEL) is presented. The system based on this method is mainly consisted of a scanning circular reflector and a photodetector array disposed spatially. Laser beam passes through the system except a little part of whole beam is sampled and reflected into the detector array by the circular reflector. Through the arithmetic of spatial mapping and image restoration with the output signal of detector array, the spatial-temporal distribution parameters of the laser beam are obtained. The HEL beam of several hundred millimeters in diameter can be on-line measured with spatial resolution of 2 mm and temporal resolution of 30~50ms.

© 2007 Optical Society of America

OCIS Codes
(040.1240) Detectors : Arrays
(040.5160) Detectors : Photodetectors
(100.3020) Image processing : Image reconstruction-restoration
(120.3940) Instrumentation, measurement, and metrology : Metrology

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: June 5, 2007
Revised Manuscript: July 25, 2007
Manuscript Accepted: August 7, 2007
Published: August 31, 2007

Shao-wu Chen, Qun-shu Wang, and Hong Zhao, "On-line beam diagnostic method for high energy laser with large beam profile," Opt. Express 15, 11763-11768 (2007)

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