Laser & Optoelectronics Progress, Volume. 58, Issue 17, 1700007(2021)
Research Progress in Liquid Crystal Optical Phased Array Technology
Fig. 3. 1D transmissive and reflective dual-frequency LCOPA devices developed by Rockwell. (a) Core element and (b) appearance of the test device of reflective dual-frequency LCOPA device[4]; (c) core element, (d) appearance of the test device and (e) structural diagram of transmissive dual-frequency LCOPA device[25]
Fig. 4. Demonstration experiment, principle and structure of the 1D LCOPA device developed by Vescent Photonics[26]. (a) Demonstration experiment; (b) principle and structure
Fig. 5. Deflection effect diagrams of LCOPA. (a) deflection effect diagrams of liquid crystal optical phased array developed by Harbin Institute of Technology[17, 19]; (b) Deflection effect diagrams of LCOPA developed by the University of Electronic Science and Technology, left for 635 nm of the incident beam, right for 1060 nm of the incident beam[33]
Fig. 6. Diffraction efficiency improvement by four optimization approaches[48]
Fig. 7. Principal block diagram and demonstration experimental block diagram of indoor point-to-two point wireless optical communication using liquid crystal double beam deflection[20]. (a) Principal block diagram; (b) demonstration experimental block diagram
Fig. 8. Schematic diagram of cascade structure adopted by University of Electronic Science and Technology of China[66]
Fig. 9. High power LCOPAdeveloped by Raytheon [68]
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Qi Wang, Xufeng Gao, Dawei Zhang, Jun Huang. Research Progress in Liquid Crystal Optical Phased Array Technology[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1700007
Category: Reviews
Received: Aug. 31, 2020
Accepted: Oct. 29, 2020
Published Online: Sep. 8, 2021
The Author Email: Wang Qi (shelly3030@163.com), Huang Jun (huangjun_hk@163.com)