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Proceedings Paper

Optical phased array using high-contrast grating all-pass filters for fast beam steering
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Paper Abstract

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.

Paper Details

Date Published: 15 March 2013
PDF: 5 pages
Proc. SPIE 8633, High Contrast Metastructures II, 86330G (15 March 2013); doi: 10.1117/12.2004756
Show Author Affiliations
Weijian Yang, Univ. of California, Berkeley (United States)
Tianbo Sun, Univ. of California, Berkeley (United States)
Yi Rao, Univ. of California, Berkeley (United States)
Trevor Chan, Univ. of California, Davis (United States)
Mischa Megens, Univ. of California, Davis (United States)
Byung-Wook Yoo, Univ. of California, Berkeley (United States)
David A. Horsley, Univ. of California, Davis (United States)
Ming C. Wu, Univ. of California, Berkeley (United States)
Connie J. Chang-Hasnain, Univ. of California, Berkeley (United States)


Published in SPIE Proceedings Vol. 8633:
High Contrast Metastructures II
Connie J. Chang-Hasnain; Fumio Koyama; Alan Eli Willner; Weimin Zhou, Editor(s)

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