Reduced back reflection design for an etched diffraction grating based planar demultiplexer

A design for a planar etched diffraction grating (EDG) demultiplexer is presented to reduce the back reflection. By reducing the diffracted field at the input waveguide, the present design makes the best effort to reduce the optical return loss. A design example is given to verify the performance. T...

Full description

Saved in:
Bibliographic Details
Published in:Optical and quantum electronics 2003-09, Vol.35 (12), p.1123-1131
Main Authors: Sheng, Z, He, J, He, S
Format: Article
Language:English
Subjects:
Applied sciences
back reflection
Circuit properties
demultiplexer
dense wavelength division multiplexing
diffraction grating
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Integrated optics. Optical fibers and wave guides
Optical and optoelectronic circuits
planar waveguides
return loss
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A design for a planar etched diffraction grating (EDG) demultiplexer is presented to reduce the back reflection. By reducing the diffracted field at the input waveguide, the present design makes the best effort to reduce the optical return loss. A design example is given to verify the performance. The spectral response at the input waveguide is simulated and the results show that at the wavelengths that cause back reflection, the reduced back reflection design only receives -47.7 dB of the input power, whereas the design without reduced back reflection receives -3.7 dB of the input power.
ISSN:0306-8919
1572-817X
1572-817X
DOI:10.1023/A:1026212703627