IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Cavity-resonator-integrated guided-mode resonance filter in channel waveguide
Junichi InoueTomonori OguraKoji HatanakaKenji KintakaKenzo NishioYasuhiro AwatsujiShogo Ura
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2013 Volume 10 Issue 15 Pages 20130444

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Abstract

A cavity-resonator-integrated guided-mode resonance filter (CRIGF) consisting of a grating coupler and a pair of distributed Bragg reflectors in a channel waveguide is proposed for a narrow-band reflection spectrum with a small aperture. A channel waveguide structure and grating pattern of the device were simultaneously formed by the electron-beam direct-writing lithography. A full-width at half-maximum of reflection spectrum of the fabricated CRIGF was about 0.3nm with the maximum reflectance of about 30%. A reflection phase varied by almost 2π for wavelength change of 1nm.

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© 2013 by The Institute of Electronics, Information and Communication Engineers
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