Three-mode multiplexer and demultiplexer utilizing trident and multimode couplers

In this paper, a simultaneous three-mode silicon (de)multiplexer using a trident coupler and a 3 × 3 multimode interference (MMI) is presented. The fundamental (TE0), first-order (TE1), and second-order (TE2) modes at the input are successfully demultiplexed and converted to three uniform fundamenta...

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Bibliographic Details
Published in:Optics communications 2019-03, Vol.435, p.334-340
Main Authors: Truong, Cao Dung, Nguyen, Tan Hung, Pham, Quang Thai, Trinh, Minh Tuan, Vu, Khu
Format: Article
Language:English
Subjects:
Mode conversion
Mode-division multiplexing
Multimode interference coupler
Planar lightwave circuits
Silicon photonics
Y-junction coupler
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Summary:In this paper, a simultaneous three-mode silicon (de)multiplexer using a trident coupler and a 3 × 3 multimode interference (MMI) is presented. The fundamental (TE0), first-order (TE1), and second-order (TE2) modes at the input are successfully demultiplexed and converted to three uniform fundamental modes (TE0) at the output ports. The device is designed and optimized by numerical simulation using three-dimensional beam propagation method together with effective index method. The three-mode (de)multiplexing is achieved over the whole C-band with small insertion loss (
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2018.11.003