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The evolution of angled MMI structure on the SOI platform

The evolution of angled MMI structure on the SOI platform
The evolution of angled MMI structure on the SOI platform
The angled multimode interferometer (AMMI) was recently demonstrated as a wavelength division (de)multiplexing (WDM) structure employing the phenomenon of dispersive self-imaging in a multimode planar waveguide. It has distinct advantages including very low insertion loss, ease of fabrication and good tolerance to fabrication error. Here, we first demonstrated a further optimized single 4-channel AMMI on the silicon-on-insulator (SOI) platform with a low insertion loss of < 1 dB, a low cross talk of < -23 dB and a non-uniformity of < 0.5 dB. However, a single AMMI is limited to have small channel count with a relatively large channel spacing in order to maintain high-performance WDM functionality. Therefore we subsequently demonstrated two structures derived from a single AMMI on the SOI platform: An 8-channel WDM comprising of two 4-channel AMMIs interleaved by an imbalanced Mach-Zehnder interferometers (MZIs) was fabricated. Low-insertion-loss and low-cross-talk operation was achieved without active tuning structures.
Hu, Y.
38fe48b3-1609-4834-ad54-dc823e3a98b3
Thomson, D.J.
17c1626c-2422-42c6-98e0-586ae220bcda
Gardes, F.Y.
7a49fc6d-dade-4099-b016-c60737cb5bb2
Mashanovich, G.Z.
c806e262-af80-4836-b96f-319425060051
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Hu, Y.
38fe48b3-1609-4834-ad54-dc823e3a98b3
Thomson, D.J.
17c1626c-2422-42c6-98e0-586ae220bcda
Gardes, F.Y.
7a49fc6d-dade-4099-b016-c60737cb5bb2
Mashanovich, G.Z.
c806e262-af80-4836-b96f-319425060051
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139

Hu, Y., Thomson, D.J., Gardes, F.Y., Mashanovich, G.Z. and Reed, G.T. (2014) The evolution of angled MMI structure on the SOI platform. SPIE Conference on Silicon Photonics IX, United States. 03 - 05 Feb 2014.

Record type: Conference or Workshop Item (Paper)

Abstract

The angled multimode interferometer (AMMI) was recently demonstrated as a wavelength division (de)multiplexing (WDM) structure employing the phenomenon of dispersive self-imaging in a multimode planar waveguide. It has distinct advantages including very low insertion loss, ease of fabrication and good tolerance to fabrication error. Here, we first demonstrated a further optimized single 4-channel AMMI on the silicon-on-insulator (SOI) platform with a low insertion loss of < 1 dB, a low cross talk of < -23 dB and a non-uniformity of < 0.5 dB. However, a single AMMI is limited to have small channel count with a relatively large channel spacing in order to maintain high-performance WDM functionality. Therefore we subsequently demonstrated two structures derived from a single AMMI on the SOI platform: An 8-channel WDM comprising of two 4-channel AMMIs interleaved by an imbalanced Mach-Zehnder interferometers (MZIs) was fabricated. Low-insertion-loss and low-cross-talk operation was achieved without active tuning structures.

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More information

Published date: February 2014
Venue - Dates: SPIE Conference on Silicon Photonics IX, United States, 2014-02-03 - 2014-02-05
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 379397
URI: https://eprints.soton.ac.uk/id/eprint/379397
PURE UUID: 01ae97a6-7150-4463-b610-cbbe9e173133

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Date deposited: 21 Jul 2015 11:25
Last modified: 15 Mar 2019 17:31

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