Chu LIU^1,2*, Fan ZHANG^1,2, Chun-can WANG^1,2, Yu-chun LU^1,2, Rui GENG^1,2, and Shui-sheng JIAN^1,2

¹Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China
²Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China

(Received May 10, 2009; Accepted July 9, 2009)

A new method for the wavefront measurement of high power laser diode array with large dynamic ranges is presented. The wavefront sensor has a large dynamic range of -π/2 to π/2 and high precision on the measured wavefront slopes (± 1'). According to the measurements of the slopes and intensity of the high power laser diode array, complex amplitudes can be obtained and the wavefront can be reconstructed. The reconstructed wavefront of high power laser diode array can be used in designing a laser beam shaping system in future work.

Key words: high power laser diode array, wavefront measurement, wavefront slopes, wavefront reconstruction, complex amplitude

^*E-mail address: 07111018@bjtu.edu.cn