Box-like filter response and expansion of FSR by a vertically triple coupled microring resonator filter
By Yuji Yanagase, S. Suzuki, Y. Kokubun, Sai T. Chu. 2002
155 citations recorded by the source corpus.
The Lorentzian-shape filter response of a microring resonator filter is not suitable for practical use in wavelength division multiplexing (WDM) systems because of the lack of passband flatness, high crosstalk, and the large wing in the rejection band. Therefore, the tailoring of filter response shape is required to improve the performance. The series coupled microring resonator is one of the solutions. We designed and fabricated vertically triple coupled microring resonator add/drop filters with a stacked configuration. A box-like filter response with a flat passband was successfully obtained, and the free spectral range (FSR) was expanded to 25.8 nm owing to the Vernier effect.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/e10137eeab35550cc4758b8c02c58e2235c5f382
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In Atomic and Molecular Physics, and Optics
In Electrical and Electronic Engineering
Citations in the corpus
- Fabrication and analysis of add-drop filters based on microring resonators in SiN (2004, background): “While Vernier operation can be used to extend the FSR of a drop spectrum [6], it can introduce intolerable dispersion into thru-port channels.”
- Fabrication of add-drop filters based on frequency-matched microring resonators (2006, background): “As a matter of fact, nearly all high-order microring filters reported in the literature have been aimed toward drop-only applications without mention of the through response [4]–[6].”