Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 32, Issue 13, Pages 803-806Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2020.2998162
Keywords
Optical transmitters; Optical receivers; Laser beams; Data communication; Optical polarization; Heating systems; Optical fibers; Optical phased array (OPA); silicon photonics; beam steering; wireless data transmission; optical wireless communication (OWC)
Funding
- Original Technology Research Program for the Innovation of Military Defence Technology through National Research Foundation of Korea [NRF-2019M3F6A1106128]
- Industrial Project from LG Electronics Incorporation
- Open Innovation Lab Project from the National Nanofab Center [COI1914M101]
- National Research Foundation of Korea [2020M3F6A1082704] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We demonstrate optical wireless transmission with two-dimensional (2D) beam-steering using an optical phased array (OPA). The OPA consists of 64-elements of electro-optic p-i-n phase shifters and thermo-optic tunable n-i-n grating radiators, employed for 2D beam-steering in the transversal and longitudinal directions. The design of the transmitter and receiver device parameters allowed the error-free transmission of 32 Gbps data over a distance of 3 m. The beam-steering range covered 46.0 degrees/10.2 degrees in the transversal/longitudinal direction with a beam divergence of 0.7 degrees/0.9 degrees. When compared with a transmission over fiber, it was confirmed that free-space transmission through the OPA did not degrade the quality of the tens of Gbps signals.
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