Open AccessDesign of Silicon TE0/TE1 Mode Router Using Mach-Zehnder and Multimode Interferometers
Author(s) -
Tran Xuan Hop,
Dang Thi Nuong,
Ho Duc Tam Linh,
Duong Quang Duy,
Nguyen Thi Hong Yen,
Mai T. P. Le,
Cao Dung Truong,
Nguyễn Tấn Hùng
Publication year - 2021
Publication title -
tạp chí khoa học và công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-1531
DOI - 10.31130/ict-ud.2021.128
Subject(s) - mach–zehnder interferometer , interferometry , multi mode optical fiber , router , astronomical interferometer , beam propagation method , silicon photonics , insertion loss , photonics , optics , waveguide , port (circuit theory) , beam splitter , multiplexing , physics , electronic circuit , optoelectronics , computer science , electronic engineering , engineering , optical fiber , electrical engineering , refractive index , computer network , laser
This paper proposes a new design of two-mode three-port optical mode router for mode division multiplexing systems. The device consists of a Mach-Zehnder interferometer (MZI) and a multimode interferometer (MMI), which utilizes silicon material for photonic integrated circuits (PIC). By setting appropriate values for the two butterfly-shaped phase shifters (PSs) at MZI and MMI, the input mode, either transverse electric (TE) modes TE0 or TE1, can be routed to the desired output among the three output ports. The device is designed and optimized via three-dimensional beam propagation method (3D BPM). The proposed device achieves very low insertion loss and small cross-talk, which are less than 0.4 dB and -24.5 dB, respectively, over the whole C band.