Measuring the wavefront distortion of a phased-array laser radar by using a real-time optoelectronic measurement system

Chunyan Zheng; Jian Wu

doi:10.1117/12.838085

20 November 2009 Measuring the wavefront distortion of a phased-array laser radar by using a real-time optoelectronic measurement system

Chunyan Zheng, Jian Wu

Author Affiliations +

Proceedings Volume 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 75111T (2009) https://doi.org/10.1117/12.838085
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

Abstract

A real-time optoelectronic measurement system is proposed to measure the wavefront distortions of scanning beams of a phased-array laser radar. This measurement system includes electric control rotating and translating platforms and a cyclic radial shearing interferometer(CRSI). CRSI is an effective interferometry to mesure the laser wavefront. A inversion algorithm is used to precisely reconstruct wavefront phase distribution from interferograms generated by the CRSI. An actual experiment of laser wavefront distortion measurement is implemented successfully. The experimental results show that this optoelectromic measurement system can measure laser wavefront distortion of a phased-array laser radar in accuracy and in real time.

Citation Download Citation

Chunyan Zheng and Jian Wu "Measuring the wavefront distortion of a phased-array laser radar by using a real-time optoelectronic measurement system", Proc. SPIE 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 75111T (20 November 2009); https://doi.org/10.1117/12.838085

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