Bandwidth and wavelength-tunable optical bandpass filter based on silicon microring-MZI structure | Zendy

Yunhong Ding | Zendy; Minhao Pu | Zendy; Liu Liu | Zendy; Jing Xu | Zendy; Christophe Peucheret | Zendy; Xinliang Zhang | Zendy; Dexiu Huang | Zendy; Haiyan Ou | Zendy

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Bandwidth and wavelength-tunable optical bandpass filter based on silicon microring-MZI structure

Author(s) -

Yunhong Ding,

Minhao Pu,

Liu Liu,

Jing Xu,

Christophe Peucheret,

Xinliang Zhang,

Dexiu Huang,

Haiyan Ou

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.006462

Subject(s) - band pass filter , optics , bandwidth (computing) , optical filter , materials science , wavelength , wavelength division multiplexing , optoelectronics , telecommunications , physics , computer science

A novel and simple bandwidth and wavelength-tunable optical bandpass filter based on silicon microrings in a Mach-Zehnder interferometer (MZI) structure is proposed and demonstrated. In this filter design, the drop transmissions of two microring resonators are combined to provide the desired tunability. A detailed analysis and the design of the device are presented. The shape factor and extinction ratio of the filter are optimized by thermally controlling the phase difference between the two arms of the MZI. Simultaneous bandwidth and wavelength tunability with in-band ripple control is demonstrated by thermally tuning the resonance offset between the two microring resonators.

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