Ultra-broadband and low-loss 3 dB optical power splitter based on adiabatic tapered silicon waveguides
- 26 April 2016
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 41 (9), 2053-2056
- https://doi.org/10.1364/ol.41.002053
Abstract
A broadband, low-loss and polarization-insensitive 3 dB optical power splitter based on adiabatic tapered silicon waveguides is proposed and investigated. 3D-FDTD simulation results show that the splitter achieves an output transmission efficiency of nearly 50% over an ultra-broad wavelength range from 1200 to 1700 nm. The device is fabricated, and experimental results show that the splitter exhibits a low excess loss of for the TE polarization and for the TM polarization over the entire measured wavelength range from 1530 to 1600 nm, while having an adiabatic taper length of only 5 μm. In addition, the measured power uniformity of the cascaded splitter is only 0.47 dB, and 0.17 dB for the TE and TM polarizations, respectively. With the advantages of low loss, broad bandwidth, and compact size, the proposed splitter is a promising element for large-scale silicon integrated photonic circuits.
Keywords
Funding Information
- Australian Research Council (ARC) (DE150100924)
- The University of Melbourne (602702)
This publication has 18 references indexed in Scilit:
- Compact monolithically-integrated hybrid (de)multiplexer based on silicon-on-insulator nanowires for PDM-WDM systemsOptics Express, 2015
- Design of polarization-independent adiabatic splitters fabricated on silicon-on-insulator substratesOptics Express, 2013
- Low-voltage, high speed, compact silicon modulator for BPSK modulationOptics Express, 2013
- Silicon-on-insulator-based adiabatic splitter with simultaneous tapering of velocity and couplingOptics Letters, 2013
- A Library of Ultra-Compact Multimode Interference Optical Couplers on SOIIEEE Photonics Technology Letters, 2013
- 1 × 12 Unequally spaced waveguide array for actively tuned optical phased array on a silicon nanomembraneApplied Physics Letters, 2011
- Dynamic switching characteristics of InGaAsP/InP multimode interference optical waveguide switchOptics Express, 2009
- A 1×4 polarization and wavelength independent optical power splitter based on a novel wide-angle low-loss Y-junctionOptics Communications, 2006
- Adiabatic and Multimode Interference Couplers on Silicon-on-InsulatorIEEE Photonics Technology Letters, 2006
- Optical directional coupler based on Si-wire waveguidesIEEE Photonics Technology Letters, 2005