Presentation 1996/8/20
Coupling between stacked waveguides using grating couplers
Q. Xing, S. Ura, T. Suhara, H. Nishihara,
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Abstract(in English) Optical coupling between stacked waveguides by grating couplers integrated on each guiding layer was proposed for use in multi-story waveguide devices. The coupling characteristics, such as power transfer, coupling efficiency, wavelength selectivity, were analyzed based on the coupled-mode theory. It was found that in forward coupling there is very small wavelength selectivity and the coupling efficiency cann't be very high. In backword coupling, on the other hand, a very sharp wavelength selectivity and a very high coupling effiency can be obtained. A backward coupling device was designed, fabricated and characterized for 0.8μm coupling wavelength using TE modes. A 0.3nm wavelength bandwith of coupling effiency, close to the calculated result of 0.2nm, was obtained and a very sharp wavelength-selective coupling was demonstrated experimentally.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) integrated optics / grating couplers / thin film waveguides / coupling effiency / wavelength-selective coupling
Paper # EDM-96-26,CPM-96-49,OPE-96-48,LQE-96-50
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Conference Information
Committee CPM
Conference Date 1996/8/20(1days)
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Registration To Component Parts and Materials (CPM)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Coupling between stacked waveguides using grating couplers
Sub Title (in English)
Keyword(1) integrated optics
Keyword(2) grating couplers
Keyword(3) thin film waveguides
Keyword(4) coupling effiency
Keyword(5) wavelength-selective coupling
1st Author's Name Q. Xing
1st Author's Affiliation Department of Electronics, Faculty of Engineering, Osaka University()
2nd Author's Name S. Ura
2nd Author's Affiliation Department of Electronics, Faculty of Engineering, Osaka University
3rd Author's Name T. Suhara
3rd Author's Affiliation Department of Electronics, Faculty of Engineering, Osaka University
4th Author's Name H. Nishihara
4th Author's Affiliation Department of Electronics, Faculty of Engineering, Osaka University
Date 1996/8/20
Paper # EDM-96-26,CPM-96-49,OPE-96-48,LQE-96-50
Volume (vol) vol.96
Number (no) 218
Page pp.pp.-
#Pages 6
Date of Issue