A Passband-Flattened EDG Demultiplexer with an Air-Trenched Taper

A novel passband flattening method for a planar waveguide demultiplexer based on an etched diffraction grating is presented. A strongly confined taper is formed by etching air trenches at both sides of the input waveguide. The geometric parameters of the taper are optimized by considering the figure...

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Published in:Fiber and integrated optics 2003-01, Vol.22 (6), p.373-383
Main Author: SHENG, ZHONGYAN
Format: Article
Language:English
Subjects:
air trench
Applied sciences
Circuit properties
demultiplexer
design
devices
Electric, optical and optoelectronic circuits
Electronics
etched diffraction grating
Exact sciences and technology
flat spectral response
guide grating multiplexer
Integrated optics. Optical fibers and wave guides
Optical and optoelectronic circuits
passband flattening
photonic integrated circuit
wavelength demultiplexer
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description A novel passband flattening method for a planar waveguide demultiplexer based on an etched diffraction grating is presented. A strongly confined taper is formed by etching air trenches at both sides of the input waveguide. The geometric parameters of the taper are optimized by considering the figure of merit, ripple, and loss. Numerical simulation for a design example is given to illustrate the passband flattening method.
doi_str_mv 10.1080/01468030390237842
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1096-4681
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source Taylor and Francis Science and Technology Collection
subjects air trench
Applied sciences
Circuit properties
demultiplexer
design
devices
Electric, optical and optoelectronic circuits
Electronics
etched diffraction grating
Exact sciences and technology
flat spectral response
guide grating multiplexer
Integrated optics. Optical fibers and wave guides
Optical and optoelectronic circuits
passband flattening
photonic integrated circuit
wavelength demultiplexer
title A Passband-Flattened EDG Demultiplexer with an Air-Trenched Taper
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