15 March 2013 Optical phased array using high-contrast grating all-pass filters for fast beam steering
Author Affiliations +
Proceedings Volume 8633, High Contrast Metastructures II; 86330G (2013) https://doi.org/10.1117/12.2004756
Event: SPIE OPTO, 2013, San Francisco, California, United States
A novel 8x8 optical phased array based on high-contrast grating (HCG) all-pass filters (APFs) is experimentally demonstrated with high speed beam steering. Highly efficient phase tuning is achieved by micro-electro-mechanical actuation of the HCG to tune the cavity length of the APFs. Using APF phase-shifters allows a large phase shift with an actuation range of only tens of nanometers. The ultrathin HCG further ensures a high tuning speed (0.626 MHz). Both one-dimensional and two-dimensional HCGs are demonstrated as the actuation mirrors of the APF arrays with high beam steering performance.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Weijian Yang, Weijian Yang, Tianbo Sun, Tianbo Sun, Yi Rao, Yi Rao, Trevor Chan, Trevor Chan, Mischa Megens, Mischa Megens, Byung-Wook Yoo, Byung-Wook Yoo, David A. Horsley, David A. Horsley, Ming C. Wu, Ming C. Wu, Connie J. Chang-Hasnain, Connie J. Chang-Hasnain, "Optical phased array using high-contrast grating all-pass filters for fast beam steering", Proc. SPIE 8633, High Contrast Metastructures II, 86330G (15 March 2013); doi: 10.1117/12.2004756; https://doi.org/10.1117/12.2004756

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