Abstract
Energy-efficient tunability is highly desired for silicon photonic devices. We demonstrate a thermo-optic tunable filter with an ultra-high tuning efficiency based on a suspended photonic crystal nanobeam cavity. Attributed to the ultra-small mode volume and free-standing waveguide structure, a tuning efficiency of 21 nm/mW is achieved over a wide single-resonance tuning range of . The switching times are 67.0 μs and 68.8 μs for the rising edge and the falling edge, respectively. The demonstrated energy-efficient tunable device can find applications in reconfigurable photonic integrated circuits.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Danyang Yao, Zhi Jiang, Yong Zhang, Han Xie, Tongtong Wang, Jianguo Wang, Xuetao Gan, Genquan Han, Yan Liu, and Yue Hao
Opt. Lett. 48(9) 2325-2328 (2023)
Ang Li and Wim Bogaerts
Opt. Lett. 42(23) 4986-4989 (2017)
Yiming Ma, Bowei Dong, Bo Li, Kah-Wee Ang, and Chengkuo Lee
Opt. Lett. 43(22) 5504-5507 (2018)