Resources
White Papers and
Application Notes
- Thermal Management of Buildings
- Hardware and Simulation Software Advancements
- Modeling the Lithium-Ion Battery
Conference Collections
- User Presentation 2017
- User Presentation 2016
- User Presentation 2015
- User Presentation 2014
- User Presentation 2013
Additional Reading
Simulation of Fourth-Order Laterally-Coupled Gratings
R. Millett, A. Benhsaien, K. Hinzer, T. Hall, and H. SchriemerCentre for Research in Photonics, University of Ottawa, Ottawa, ON, Canada
Distributed feedback lasers improve the performance of standard Fabry-Perot laser designs by including a wavelength-selective grating that provides superior output, spectral purity and temperature stability. Laterally-coupled distributed feedback (LC-DFB) lasers with the use of higher order gratings have a grating that has been patterned out of the waveguide ridge which allows for simplified fabrication and monolithic integration with a variety of other photonic devices.
We have developed a technique using COMSOL Multiphysics to calculate the effective coupling coefficient of higher order laterally-coupled gratings. Our application uses a fourth-order grating that will produce a high-performance grating for DFB laser applications.
