Silicon photonic wire filter using asymmetric sidewall long-period waveguide grating in a two-mode waveguide

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We demonstrate a silicon photonic wire filter using asymmetric sidewall long-period waveguide gratings for the first time. The proposed device consists of single-mode waveguide sections, a two-mode section with corrugated gratings, and taper sections to connect them. The operation of this device is based on the codirectional coupling between two core modes. By adopting a high refractive index contrast waveguide, the period and depth of grating are given as 4.44 mu m and 5 nm, respectively. Thus, the total length of long-period grating is significantly reduced to 260 mu m. The measured maximum attenuation at the center wavelength is about 13 dB. The bandwidth of the transmission dip is 15 nm. Finally, issues on the design and the performance of our device are discussed.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2008-03
Language
English
Article Type
Article
Keywords

SOI; TECHNOLOGY

Citation

IEEE PHOTONICS TECHNOLOGY LETTERS, v.20, no.5-8, pp.520 - 522

ISSN
1041-1135
DOI
10.1109/LPT.2008.918895
URI
http://hdl.handle.net/10203/87855
Appears in Collection
EE-Journal Papers(저널논문)
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