J4 ›› 2010, Vol. 27 ›› Issue (3): 276-280.

• Laser Tech. and Devices • Previous Articles     Next Articles

Study on the Wavefront Sensing Characteristic of the Array Fresnel Zone Plates

WANG Wei1 XIE Yu1 WU Bo2   

  1. 1 School of Physics and Electronic Information, Huaibei Coal Industry Teachers College, Huaibei 235000, China; 
    2 School of Electronics and Information, Sichuan University, Chengdu 610064, China
  • Received:2009-07-27 Revised:2009-10-28 Published:2010-05-28 Online:2010-05-11

Abstract:

In high power laser system,small-scale phase distorted wavefront measurement is necessary to compensate and control the wavefront of laser beam with intermediate frequency. As wavefront sensor, array Fresnel zone plates split wavefront , and its focus characteristic was investigated. Also, the influence of the structure of array Fresnel zone plates on wavefront reconstruction was discussed. Simulation results show that the error of wavefront reconstruction is less than one-tenth wavelength with suitable optical parameters. The optical system for the measurement of distorted wavefront was built to study on the sensing characteristic of array Fresnel zone plates.Experimental results prove the feasibility and effectiveness of the wavefront measurement.

Key words: 激光技术∣波前探测性能∣阵列菲涅耳波带片∣波前传感器∣小尺度相位畸变