An MMI-Based Mode (DE)MUX by Varying the Waveguide Thickness of the Phase Shifter

A two-mode (de)multiplexer [(DE)MUX] based on multimode interference couplers on InP substrate is proposed and experimentally demonstrated. A phase shifting section with a variation of the waveguide thickness is introduced to precisely control the phase shift to realize 100% mode conversion efficien...

Full description

Saved in:
Bibliographic Details
Published inIEEE photonics technology letters Vol. 28; no. 21; pp. 2443 - 2446
Main Authors Guo, Fei, Lu, Dan, Zhang, Ruikang, Wang, Huitao, Liu, Songtao, Sun, Mengdie, Kan, Qiang, Ji, Chen
Format Journal Article
LanguageEnglish
Published IEEE 01.11.2016
Subjects
Couplers
Crosstalk
Demultiplexing
Fabrication
III-V semiconductor materials
Indium phosphide
Insertion loss
multiplexing
Phase shifters
Online AccessGet full text

Cover

More Information
Summary:A two-mode (de)multiplexer [(DE)MUX] based on multimode interference couplers on InP substrate is proposed and experimentally demonstrated. A phase shifting section with a variation of the waveguide thickness is introduced to precisely control the phase shift to realize 100% mode conversion efficiency and multiplexing. Performance analysis of the (DE)MUX is carried out numerically, showing excellent properties with insertion loss <;1.2 dB and crosstalk <;-18.4 dB for both the TE 0 and TE 1 mode within the whole C-band. The proposed device is also fabricated and demonstrated on InP substrate.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2016.2599934