期刊
OPTICS LETTERS
卷 45, 期 19, 页码 5620-5623出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.400132
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资金
- Agency for Science, Technology and Research [R-263-000-C91-305]
- National Research Foundation Singapore [R-263-000-C24-281, R-263-000-C64-281]
We demonstrate a multifunctional photonic switch on silicon-on-insulator platform operating at the mid-infrared wavelength range (3.85-4.05 mu m) using suspended. waveguides with sub-wavelength cladding and a microelectro-mechanical systems (MEMS) tunable waveguide coupler. Leveraging the flip-chip bonding technology, a top wafer acting as the electrode is assembled above the silicon-on-insular wafer to enable the electrostatic actuation. Experimental characterizations for the functions of the proposed device include (1) an optical attenuator with 25 dB depth using DC voltage actuation, (2) a 1 x 2 optical switch with response time of 8.9 mu s and -3 dB bandwidth up to 127 kHz using AC voltage actuation, and (3) an on-chip integrated light chopper with the comparable performance of a commercial rotating disc light chopper. (C) 2020 Optical Society of America
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