Design of SiON-based grating-assisted vertical directional couplers
Optics Express, Vol. 14, Issue 3, pp. 1055-1063 (2006)
http://dx.doi.org/10.1364/OE.14.001055
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Abstract
In this paper, we present the design of a SiON-based grating-assisted codirectional coupler for dissimilar waveguides, based on an accurate numerical method. All the design parameters, including coupling length and coupling efficiency, have been calculated at the free-space optical wavelength of λ =1.54 μm for both TE and TM polarisations as a function of grating height, thickness of the coupled slabs, gap thickness between the two coupled planar waveguides. It is shown that efficient (up to 70%) and polarisation independent vertical couplers can be realised.
© 2006 Optical Society of America
OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(130.3120) Integrated optics : Integrated optics devices
(160.3130) Materials : Integrated optics materials
ToC Category:
Integrated Optics
History
Original Manuscript: November 17, 2005
Revised Manuscript: January 13, 2006
Manuscript Accepted: January 22, 2006
Published: February 6, 2006
Citation
Vittorio Passaro and Goran Masanovic, "Design of SiON-based grating-assisted vertical directional couplers," Opt. Express 14, 1055-1063 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-3-1055
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References
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