Improving Multimode Interference Couplers Performance Through Index Profile Engineering
- 8 May 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 27 (10) , 1307-1314
- https://doi.org/10.1109/jlt.2009.2016985
Abstract
In this paper, a new technique is developed to improve high index contrast multimode interference (MMI) coupler performance. The technique is based on removing modal phase errors by introducing a perturbation in the lateral refractive index of the MMI section. Simulation results for several MMI devices show that this technique is able to provide extremely low excess losses and imbalance for all situations.Keywords
This publication has 13 references indexed in Scilit:
- A Design Procedure for High-Performance, Rib-Waveguide-Based Multimode Interference Couplers in Silicon-on-InsulatorJournal of Lightwave Technology, 2008
- Subwavelength Grating Structures in Silicon-on-Insulator WaveguidesAdvances in Optical Technologies, 2008
- Mirror cavity MMI coupled photonic wire resonator in SOI.Optics Express, 2007
- A broad-band waveguide grating coupler with a subwavelength grating mirrorIEEE Photonics Technology Letters, 2005
- Optimization of access waveguide width of multimode interference (MMI) couplersOptics Communications, 2003
- Structure with improved self-imaging in its graded-index multimode interference regionJournal of the Optical Society of America B, 2002
- Fourier-modal methods applied to waveguide computational problemsOptics Letters, 2000
- Improved approach to low-loss and high-uniformity MMI devicesOptics Communications, 2000
- A new design approach to large input/output number multimode interference couplers and its application to low-crosstalk WDM routersIEEE Photonics Technology Letters, 1998
- Resolution of self-images in planar optical waveguides*Journal of the Optical Society of America, 1978