Low loss MMI couplers for high performance MZI modulators
Low loss MMI couplers for high performance MZI modulators
Optical splitters and combiners which can provide precise splitting with low loss, high thermal stability, large optical bandwidth, high compactness, and insensitivity to fabrication tolerances are essential components for high performance Mach-Zehnder Interferometers (MZI)-based optical modulators. In this letter, we theoretically and experimentally investigate the multimode interference (MMI) based structure and the reduction in optical loss achievable through the use of linear tapers at the input and output ports. Our data shows that losses can be reduced to below 1 dB/MMI without affecting the static extinction when employed in MZIs.
Low loss, Mach-Zehnder interferometers (MZI), multimode interference (MMI), optical modulator, silicon photonics, taper
1485-1487
Thomson, D J.
17c1626c-2422-42c6-98e0-586ae220bcda
Hu, Y.
38fe48b3-1609-4834-ad54-dc823e3a98b3
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Fedeli, Jean Marc
3ba0b3fe-2d35-4bf7-9b6b-3d877e1f031b
5 August 2010
Thomson, D J.
17c1626c-2422-42c6-98e0-586ae220bcda
Hu, Y.
38fe48b3-1609-4834-ad54-dc823e3a98b3
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Fedeli, Jean Marc
3ba0b3fe-2d35-4bf7-9b6b-3d877e1f031b
Thomson, D J., Hu, Y., Reed, G.T. and Fedeli, Jean Marc
(2010)
Low loss MMI couplers for high performance MZI modulators.
IEEE Photonics Technology Letters, 22 (20), , [5540271].
(doi:10.1109/LPT.2010.2063018).
Abstract
Optical splitters and combiners which can provide precise splitting with low loss, high thermal stability, large optical bandwidth, high compactness, and insensitivity to fabrication tolerances are essential components for high performance Mach-Zehnder Interferometers (MZI)-based optical modulators. In this letter, we theoretically and experimentally investigate the multimode interference (MMI) based structure and the reduction in optical loss achievable through the use of linear tapers at the input and output ports. Our data shows that losses can be reduced to below 1 dB/MMI without affecting the static extinction when employed in MZIs.
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More information
Published date: 5 August 2010
Additional Information:
Funding Information: This work was supported by European Community’s Seventh Frame-work Programme (FP7/2007-2013) under Grant 224312 HELIOS and from the EPSRC UKSP Project.
Keywords:
Low loss, Mach-Zehnder interferometers (MZI), multimode interference (MMI), optical modulator, silicon photonics, taper
Identifiers
Local EPrints ID: 481838
URI: http://eprints.soton.ac.uk/id/eprint/481838
ISSN: 1041-1135
PURE UUID: 2d93e2f7-1b4c-4980-ab9a-dd59e4d9361b
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Date deposited: 11 Sep 2023 16:37
Last modified: 17 Mar 2024 13:29
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Contributors
Author:
Y. Hu
Author:
Jean Marc Fedeli
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