Abstract
A polarization beam splitter-rotator based on asymmetric directional coupling is proposed. An ultrashort cross-polarization coupling length of 7.7μm is achieved by manipulating the optical field distribution via the plasmonic effect, which is the shortest one reported so far, to the best of our knowledge. At the wavelength of 1.55μm, the extinction ratios are as high as 50.9dB and 28.2dB for fundamental transverse magnetic (TM0) and transverse electric (TE0) polarizations, respectively, and the corresponding insertion losses are 1.545dB and 0.037dB. In addition, the TM0-to-TE0 polarization conversion efficiency is higher than 95% within a bandwidth of 70nm.
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.
