Proposal of a wavelength filter with a cut corner based on Equilateral-Triangle-Resonator | Zendy

Wei-Cong Yan | Zendy; Zhiyou Guo | Zendy; Ning Hua Zhu | Zendy; YuQiang Jiang | Zendy

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Proposal of a wavelength filter with a cut corner based on Equilateral-Triangle-Resonator

Author(s) -

Wei-Cong Yan,

Zhiyou Guo,

Ning Hua Zhu,

YuQiang Jiang

Publication year - 2013

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.21.016536

Subject(s) - equilateral triangle , optics , resonator , finesse , waveguide , isosceles triangle , filter (signal processing) , physics , waveguide filter , wavelength , mathematics , filter design , computer science , prototype filter , geometry , fabry–pérot interferometer , computer vision

We propose an equilateral triangle resonator filter with an output waveguide and analyzed by the finite-difference time-domain technique. The filter can realize directional output with a high Q mode by means of the mode-field coupled into the output waveguide, which results a reduction in the scattering loss at the vertices. In addition, to the deformed equilateral triangle resonator filter, an optimum parameter with a cut corner of 0.23 μm, which is equal to that of the input waveguide and can be an optimal cut, is found to help increase in finesse, Q factors, extinction ratio and the output intensity on resonance of the drop port normalized with the through port .

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