Design considerations in optical add/drop multiplexers based on grating-assisted null couplers
Design considerations in optical add/drop multiplexers based on grating-assisted null couplers
The performance of a fully optimized optical add/drop multiplexer (OADM), based on null couplers and tilted Bragg gratings, is studied in detail. It is shown that maximization of the device performance involves three main optimization steps. First, the waveguide asymmetry (V2 /V1 ratio) should be optimized in order to minimize the extinction ratio of the unwanted mode at the null coupler waist. Second, the coupler taper shape should he optimized in order to further minimize the aforementioned extinction ratio. Third, the grating tilt angle and relative width can be also optimized to give negligible backreflections at the input port and minimize radiation losses. The results show that the proposed high-performance OADM configuration can meet stringent telecom specifications.
92-104
Riziotis, C.
a2037f27-c711-46c3-bec4-2293fca6f0e0
Zervas, M.N.
1840a474-dd50-4a55-ab74-6f086aa3f701
2001
Riziotis, C.
a2037f27-c711-46c3-bec4-2293fca6f0e0
Zervas, M.N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Riziotis, C. and Zervas, M.N.
(2001)
Design considerations in optical add/drop multiplexers based on grating-assisted null couplers.
IEEE Journal of Lightwave Technology, 19 (1), .
(doi:10.1109/50.914490).
Abstract
The performance of a fully optimized optical add/drop multiplexer (OADM), based on null couplers and tilted Bragg gratings, is studied in detail. It is shown that maximization of the device performance involves three main optimization steps. First, the waveguide asymmetry (V2 /V1 ratio) should be optimized in order to minimize the extinction ratio of the unwanted mode at the null coupler waist. Second, the coupler taper shape should he optimized in order to further minimize the aforementioned extinction ratio. Third, the grating tilt angle and relative width can be also optimized to give negligible backreflections at the input port and minimize radiation losses. The results show that the proposed high-performance OADM configuration can meet stringent telecom specifications.
Text
13730.pdf
- Version of Record
Restricted to Repository staff only
Request a copy
More information
Published date: 2001
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 13730
URI: http://eprints.soton.ac.uk/id/eprint/13730
ISSN: 0733-8724
PURE UUID: 26c0b3c0-ceb8-45c8-a8cb-6c03e6638771
Catalogue record
Date deposited: 06 Jan 2005
Last modified: 16 Mar 2024 02:41
Export record
Altmetrics
Contributors
Author:
C. Riziotis
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
