期刊
OPTICS EXPRESS
卷 19, 期 14, 页码 13551-13556出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.013551
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- DARPA MTO [HR0011-09-C-0123]
We demonstrate planar Si3N4 ring resonators with ultra-high quality factors (Q) of 19 million, 28 million, and 7 million at 1060 nm, 1310 nm, and 1550 nm, respectively. By integrating the ultra-low-loss Si3N4 ring resonators with laterally offset planar waveguide directional couplers, optical add-drop and notch filters are demonstrated to have ultra-narrow bandwidths of 16 MHz, 38 MHz, and 300 MHz at 1060 nm, 1310 nm, and 1550 nm, respectively. These are the highest Qs reported for ring resonators with planar directional couplers, and ultra-narrowband microwave photonic filters can be realized based on these high-Q ring resonators. (C) 2011 Optical Society of America
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