Abstract

We demonstrate mid-infrared wavelength-insensitive directional coupler based on two mechanisms, namely rib waveguide dispersion engineering and subwavelength grating (SWG) dispersion engineering. Compared to conventional directional coupler, the rib waveguide dispersion engineered and SWG dispersion engineered directional coupler achieve a 4-fold and more than 4-fold enhancement in the operation bandwidth for 100% coupling ratio respectively.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.