Abstract

We present the design and the fabrication of compact tunable silicon-on-insulator bandpass filters based on the integration of a Mach–Zehnder interferometer with ring resonators and activated via thermo-optic phase shifters. The proposed architecture provides wide filter bandwidth tunability from 10% to 90% of the free spectral range preserving the filter off-band rejection. Possible applications are channel subset selection in wavelength division multiplexing optical systems, adaptive filtering to signal bandwidth, and reconfigurable filters for gridless networking.

© 2012 Optical Society of America

Reconfigurable and tunable compact comb filter and (de)interleaver on silicon platform

Nan Zhou, Shuang Zheng, Yun Long, Zhengsen Ruan, Li Shen, and Jian Wang
Opt. Express 26(4) 4358-4369 (2018)

Eight-channel reconfigurable microring filters with tunable frequency, extinction ratio and bandwidth

Hao Shen, Maroof H. Khan, Li Fan, Lin Zhao, Yi Xuan, Jing Ouyang, Leo T. Varghese, and Minghao Qi
Opt. Express 18(17) 18067-18076 (2010)

Tunable bandpass microwave photonic filter with largely reconfigurable bandwidth and steep shape factor based on cascaded silicon nitride micro-ring resonators

Wei Cheng, Dongdong Lin, Pengfei Wang, Shangqing Shi, Mengjia Lu, Jin Wang, Chen Guo, Yifei Chen, Zhao Cang, Zhuang Tian, Zien Liang, Guohua Hu, and Binfeng Yun
Opt. Express 31(16) 25648-25661 (2023)

Silicon optical filters reconfigured from a 16 × 16 Benes switch matrix

Lin Shen, Liangjun Lu, Zhanzhi Guo, Linjie Zhou, and Jianping Chen
Opt. Express 27(12) 16945-16957 (2019)

Bandwidth and wavelength tunable optical passband filter based on silicon multiple microring resonators

Tingge Dai, Ao Shen, Gencheng Wang, Yuehai Wang, Yubo Li, Xiaoqing Jiang, and Jianyi Yang
Opt. Lett. 41(20) 4807-4810 (2016)