论文信息 - Experimental research on beam steering characteristics of liquid crystal optical phased array

Experimental research on beam steering characteristics of liquid crystal optical phased array

Beam steering characteristics of transmission liquid crystal optical phased array(LC-OPA) were measured using ultra precision electronic autocollimator. A continuous beam steering with a constant angular resolution in the order of 20 μrad is obtained experimentally from 0° to 6° based on the method of variable period grating (VPG).Meanwhile, the angular repeatability of less than 4 μrad (RMS) has been achieved.

Liang Wu | Hong Xu | Man Li | Jun Cai | Xiangru Wang

[1] Bruce Winker,et al. Compact 4 cm aperture transmissive liquid crystal optical phased array for free-space optical communications , 2005, SPIE Optics + Photonics.

[2] Edward A. Watson,et al. A Review of Phased Array Steering for Narrow-Band Electrooptical Systems , 2009, Proceedings of the IEEE.

[3] Qinggui Tan,et al. Sub-aperture coherence method to realize ultra-high resolution laser beam deflection , 2015 .

[4] Paul F. McManamon,et al. An overview of optical phased array technology and status , 2005, SPIE Optics + Optoelectronics.

[5] Edward A. Watson,et al. Optical phased array technology , 1996, Proc. IEEE.