Design of SOI wavelength filter based on multiple MMIs structures
Design of SOI wavelength filter based on multiple MMIs structures
SOI based MMIs prove to be versatile photonic structures for optical power splitting/combining, directional coupling, wavelength multiplexing/ demultiplexing, etc. Such a structure benefits from relative ease of fabrication, low sensitivity to fabrication error and low temperature dependence. Whilst the majority of previous designs and optimizations investigated single MMIs, there is significant potential to combine MMIs within a single device for the realization of improved device performance. We have designed and simulated a wavelength filter device consisting of a series of MMIs with different lengths. The bandwidth, free spectral range, and extinction ratio can be controlled by changing the MMI's width and length. We have optimized our design to achieve a-3dB bandwidth of 5nm, a free spectral range of 60nm, an extinction ratio of >30dB, and a side peak suppression ratio of >22dB. Such a device can be used for high performance coarse wavelength filtering. The whole structure can fit into a 70μm×300μm area. Temperature sensitivity of the designed structures was also investigated.
Cascaded, Filter, Multimode interferometer, SOI, Wavelength multiplexing
Hu, Youfang
38fe48b3-1609-4834-ad54-dc823e3a98b3
Gardes, Frédéric Y.
7a49fc6d-dade-4099-b016-c60737cb5bb2
Jenkins, Richard M.
ef154b6b-a88f-49fe-ab1a-90089239a988
Finlayson, Ewan D.
0ae2324b-8e38-4580-84d6-268ab1ab7713
Mashanovich, Goran Z.
c806e262-af80-4836-b96f-319425060051
Reed, Graham T.
ca08dd60-c072-4d7d-b254-75714d570139
27 January 2011
Hu, Youfang
38fe48b3-1609-4834-ad54-dc823e3a98b3
Gardes, Frédéric Y.
7a49fc6d-dade-4099-b016-c60737cb5bb2
Jenkins, Richard M.
ef154b6b-a88f-49fe-ab1a-90089239a988
Finlayson, Ewan D.
0ae2324b-8e38-4580-84d6-268ab1ab7713
Mashanovich, Goran Z.
c806e262-af80-4836-b96f-319425060051
Reed, Graham T.
ca08dd60-c072-4d7d-b254-75714d570139
Hu, Youfang, Gardes, Frédéric Y., Jenkins, Richard M., Finlayson, Ewan D., Mashanovich, Goran Z. and Reed, Graham T.
(2011)
Design of SOI wavelength filter based on multiple MMIs structures.
Kubby, Joel A. and Reed, Graham T.
(eds.)
In Silicon Photonics VI.
vol. 7943,
SPIE.
9 pp
.
(doi:10.1117/12.875280).
Record type:
Conference or Workshop Item
(Paper)
Abstract
SOI based MMIs prove to be versatile photonic structures for optical power splitting/combining, directional coupling, wavelength multiplexing/ demultiplexing, etc. Such a structure benefits from relative ease of fabrication, low sensitivity to fabrication error and low temperature dependence. Whilst the majority of previous designs and optimizations investigated single MMIs, there is significant potential to combine MMIs within a single device for the realization of improved device performance. We have designed and simulated a wavelength filter device consisting of a series of MMIs with different lengths. The bandwidth, free spectral range, and extinction ratio can be controlled by changing the MMI's width and length. We have optimized our design to achieve a-3dB bandwidth of 5nm, a free spectral range of 60nm, an extinction ratio of >30dB, and a side peak suppression ratio of >22dB. Such a device can be used for high performance coarse wavelength filtering. The whole structure can fit into a 70μm×300μm area. Temperature sensitivity of the designed structures was also investigated.
Text
79430X
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Available under License Other.
More information
Published date: 27 January 2011
Venue - Dates:
Silicon Photonics VI, , San Francisco, CA, United States, 2011-01-22 - 2011-01-27
Keywords:
Cascaded, Filter, Multimode interferometer, SOI, Wavelength multiplexing
Identifiers
Local EPrints ID: 481774
URI: http://eprints.soton.ac.uk/id/eprint/481774
ISSN: 0277-786X
PURE UUID: 5f80a9a3-89c4-40a4-8b5b-4f605ce34e4f
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Date deposited: 07 Sep 2023 16:36
Last modified: 18 Mar 2024 03:19
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Contributors
Author:
Youfang Hu
Author:
Richard M. Jenkins
Author:
Ewan D. Finlayson
Editor:
Joel A. Kubby
Editor:
Graham T. Reed
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