Abstract
For the traditional light-coupling methods, grating coupler (GC) has been effectively adopted to interface optical fiber light into/from photonic waveguides. To date, the reported GCs fabricated on thin-film lithium niobate on insulator (LNOI) either have low coupling efficiency (CE) or need additional cladding and reflector and with complicated fabrication process to attain a high CE [1] – [3] . Noted that there exist the transmission and dispersion relationships between frequency and wavenumber in short-period gratings structure, the characteristics of sub-wavelength gratings (SWG) waveguide had been widely investigated [4] , while the reports of LNOI optical components integrated with waveguide SWG have not been fully exploited neither in simulations nor experiments [5] , [6] , especially for the research of highly-efficient GCs in LNOI.
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 callDisclaimer: 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.
