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Coarse wavelength division (de)multiplexer using an interleaved angled multimode interferometer structure

Coarse wavelength division (de)multiplexer using an interleaved angled multimode interferometer structure
Coarse wavelength division (de)multiplexer using an interleaved angled multimode interferometer structure
We have demonstrated a coarse wavelength (de)multiplexing structure on the silicon-on-insulator platform. It comprises two 4-channel angled multimode interferometers interleaved with an imbalanced Mach-Zehnder interferometer (MZI) leading to an 8-channel multiplexing device. The device requires only single lithography and etching steps for fabrication and has a good tolerance to fabrication errors in terms of waveguide width. The insertion loss and crosstalk achieved are 3-4 dB and -(15-20) dB, respectively. Potential is shown for achieving improved performance using larger waveguide bending radii in the MZI arms and/or (a) local heater(s) for refractive index tuning.
0003-6951
Hu, Y.
38fe48b3-1609-4834-ad54-dc823e3a98b3
Gardes, F.Y.
7a49fc6d-dade-4099-b016-c60737cb5bb2
Thomson, D.J.
17c1626c-2422-42c6-98e0-586ae220bcda
Mashanovich, G.Z.
c806e262-af80-4836-b96f-319425060051
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Hu, Y.
38fe48b3-1609-4834-ad54-dc823e3a98b3
Gardes, F.Y.
7a49fc6d-dade-4099-b016-c60737cb5bb2
Thomson, D.J.
17c1626c-2422-42c6-98e0-586ae220bcda
Mashanovich, G.Z.
c806e262-af80-4836-b96f-319425060051
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139

Hu, Y., Gardes, F.Y., Thomson, D.J., Mashanovich, G.Z. and Reed, G.T. (2013) Coarse wavelength division (de)multiplexer using an interleaved angled multimode interferometer structure. Applied Physics Letters, 102 (25). (doi:10.1063/1.4812746).

Record type: Article

Abstract

We have demonstrated a coarse wavelength (de)multiplexing structure on the silicon-on-insulator platform. It comprises two 4-channel angled multimode interferometers interleaved with an imbalanced Mach-Zehnder interferometer (MZI) leading to an 8-channel multiplexing device. The device requires only single lithography and etching steps for fabrication and has a good tolerance to fabrication errors in terms of waveguide width. The insertion loss and crosstalk achieved are 3-4 dB and -(15-20) dB, respectively. Potential is shown for achieving improved performance using larger waveguide bending radii in the MZI arms and/or (a) local heater(s) for refractive index tuning.

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Published date: 27 June 2013
Organisations: Optoelectronics Research Centre, Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 356338
URI: https://eprints.soton.ac.uk/id/eprint/356338
ISSN: 0003-6951
PURE UUID: 065db201-58c2-4b9e-a3e9-ac4a3200cac1

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Date deposited: 13 Sep 2013 10:15
Last modified: 28 Oct 2019 21:04

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