DING Jia-yue,ZOU Xi-hua,ZOU Fang,PAN Wei,YAN Lian-shan,LUO Bin.Thermal tuning of chirped SOI sidewall grating for tunable wavelength, delay, and bandwidth[J].Optoelectronics Letters,2021,17(4):205-208 Thermal tuning of chirped SOI sidewall grating for tunable wavelength, delay, and bandwidth Author Name Affiliation DING Jia-yue  Center for Information Photonics & Communications, School of Information Science and Technology, Southwest  ZOU Xi-hua  Center for Information Photonics & Communications, School of Information Science and Technology, Southwest  ZOU Fang  Center for Information Photonics & Communications, School of Information Science and Technology, Southwest  PAN Wei  Center for Information Photonics & Communications, School of Information Science and Technology, Southwest  YAN Lian-shan  Center for Information Photonics & Communications, School of Information Science and Technology, Southwest  LUO Bin  Center for Information Photonics & Communications, School of Information Science and Technology, Southwest  Abstract:       In this work, we design a silicon-on-insulator (SOI) sidewall grating with tunable wavelength, delay, and bandwidth through thermal tuning. Incorporating uniform sidewall corrugations and a linearly chirped rib waveguide, the thermo-optic effect imposed on chirped rib waveguide changes the effective refractive index, due to the resultant of the temperature gradient. Consequently, tunable wavelength, delay, and bandwidth in SOI sidewall grating are achieved. In the numerical simulations, the designed SOI grating is demonstrated with a tunable wavelength from 1 560.7 nm to 1 561.9 nm, a tunable delay from 0 to 38 ps, and a tunable bandwidth from 1 nm to 1.5 nm. Hits: 741 Download times: 1 View Full Text    Download reader