Open AccessDesign and optimization of a novel silicon-on-insulator wavelength diplexer
Author(s) -
Yangjin Ma,
Peter Magill,
Tom BaehrJones,
Michael Hochberg
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.021521
Subject(s) - silicon on insulator , optics , wavelength , diplexer , materials science , insertion loss , bandwidth (computing) , wavelength division multiplexing , optoelectronics , power dividers and directional couplers , multi mode optical fiber , fabrication , silicon , waveguide , bent molecular geometry , particle swarm optimization , adiabatic process , optimal design , optical fiber , physics , telecommunications , computer science , medicine , alternative medicine , pathology , machine learning , composite material , thermodynamics
We propose a novel silicon-on-insulator (SOI) wavelength diplexer design based on an adiabatic bent taper and an unconventional multimode waveguide. The geometry of the device is optimized using particle swarm optimization (PSO). The device has an ultra-short length of 15 μm. Simulated insertion loss at peak wavelength is less than 0.25 dB with 1-dB bandwidth around 100 nm for both O band and C band. The device is fabrication tolerant as demonstrated by simulated yield estimates. The reported design targets 1310 and 1550 nm as peak wavelengths; the design methodology is easily applicable to other wavelengths of interest.