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Proceedings Paper

Compact two-mode (de)multiplexer based on MMI couplers with different core thickness on InP
Author(s): Fei Guo; Dan Lu; Ruikang Zhang; Huitao Wang; Wei Wang; Chen Ji
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Paper Abstract

A novel design of two-mode (DE)MUX based on multimode interference (MMI) couplers on InP substrate is proposed. A phase shifting section based on the thickness variation of the core layer is introduced in the (DE)MUX to realize a 100% mode conversion efficiency and multiplexing. The total length of the structure is only 549 μm, much shorter than other InP based mode (DE)MUXs. Simulations show that, the device crosstalk is below -20 dB and the insertion loss is lower than 1 dB for both of the fundamental mode and the first order mode within the whole C band. This new structure can be potentially integrated with other devices based on InP substrate to serve as a monolithic few-mode transmitter/receiver.

Paper Details

Date Published: 1 March 2016
PDF: 6 pages
Proc. SPIE 9750, Integrated Optics: Devices, Materials, and Technologies XX, 97500Z (1 March 2016); doi: 10.1117/12.2209268
Show Author Affiliations
Fei Guo, Institute of Semiconductors (China)
Dan Lu, Institute of Semiconductors (China)
Ruikang Zhang, Institute of Semiconductors (China)
Huitao Wang, Institute of Semiconductors (China)
Wei Wang, Institute of Semiconductors (China)
Chen Ji, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 9750:
Integrated Optics: Devices, Materials, and Technologies XX
Jean-Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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