title: Tunable two-stage self-coupled optical waveguide resonators.
abstract: We report tunable two-stage self-coupled optical waveguide (SCOW) resonators composed of a pair of mirror-imaged single SCOW resonators connected by a phase shifter in between. Experimental results show that the coupled-resonator-induced-transparency and high-order bandstop filtering characteristics can be obtained in the transmission spectra of the devices with two different configurations. The resonance spectrum can be tuned by using either a p-i-p microheater or a p-i-n diode in the phase shifter. Our theoretical modeling based on the transfer matrix method has a good agreement with the experimental results.
authors.affiliation: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Zou
authors.forename: Linjie
authors.initials: L
authors.lastname: Zhou
authors.forename: Xiaomeng
authors.initials: X
authors.lastname: Sun
authors.forename: Jingya
authors.initials: J
authors.lastname: Xie
authors.forename: Haike
authors.initials: H
authors.lastname: Zhu
authors.forename: Liangjun
authors.initials: L
authors.lastname: Lu
authors.forename: Xinwan
authors.initials: X
authors.lastname: Li
authors.forename: Jianping
authors.initials: J
authors.lastname: Chen