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|Title:||Mode control in planar waveguide grating couplers with double surface corrugation||Authors:||Xiao, Zhe
Silalahi, Samson T. H.
Shum, Perry Ping
|Keywords:||DRNTU::Engineering::Electrical and electronic engineering||Issue Date:||2012||Source:||© 2012 IEEE
Xiao, Z., Liow, T. Y., Zhang, J., Silalahi, S. T. H., Shum, P., & Luan, F. (2012). Mode control in planar waveguide grating couplers with double surface corrugation. IEEE photonics technology letters, 24(19), 1722-1725.
|Series/Report no.:||IEEE photonics technology letters||Abstract:||Grating couplers with double surface corrugation are proposed to adjust the resonance behavior of both TE and TM modes simultaneously. Through proper selection of parameters, we designed a polarization-independent grating coupler operating at 1.55-μm telecommunication wavelength. Efficiency is achieved at around 55% for both TE and TM modes, and the polarization-dependent loss is <; 0.05 dB within the spectral window from 1544 to 1561 nm. Furthermore, a double-channel grating coupler is proposed to excite the TE and TM modes at 1.31 and 1.49 μm, respectively. The achievable efficiency is around 60% for both channels with good uniformity.||URI:||https://hdl.handle.net/10356/102731
|ISSN:||1041-1135||DOI:||10.1109/LPT.2012.2213300||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||EEE Journal Articles|
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