Demonstration of Distributed Etched Diffraction Grating Demultiplexer

The design principles and measurement results for a compact shallow etched distributed diffraction grating waveguide demultiplexer are presented. The deeply etched diffraction grating facets are replaced with a shallow etched odd-order quarter wavelength Bragg reflector to increase the Fresnel refle...

Full description

Saved in:
Bibliographic Details
Published in:IEEE photonics journal 2011-08, Vol.3 (4), p.651-657
Main Authors: Jafari, A., Kirk, A. G.
Format: Article
Language:English
Subjects:
Arrayed waveguide gratings
Bragg gratings
Channels
Demultiplexers
Demultiplexing
Devices
Diffraction
Diffraction gratings
Distributed Bragg reflector (DBR)
Distributed Bragg reflectors
etched diffraction grating demultiplexer
Etching
Insertion loss
Nanostructure
waveguide devices
Wavelengths
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The design principles and measurement results for a compact shallow etched distributed diffraction grating waveguide demultiplexer are presented. The deeply etched diffraction grating facets are replaced with a shallow etched odd-order quarter wavelength Bragg reflector to increase the Fresnel reflection coefficient. A prototype device was designed for coarse wavelength demultiplexing applications and was fabricated in nanophotonic silicon-on-insulator platform using deep ultraviolet (DUV) optical lithography. The demultiplexer, which supports four channels with 20-nm channel spacing, shows a crosstalk of -25 dB.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2011.2159582