Abstract
Circular photonic crystal fibers (C-PCFs) have been proved to be a good candidate for orbital angular momentum (OAM) modes supporting fiber, because they possess many excellent features, such as good quality of OAM modes, large separation of the effective indices, low confinement loss, flat dispersion and a large mode field effective area. This paper gives evidence that the C-PCF also shows good performance in the perspective of bending strength. We establish a model to research the macro-bending characteristics of the C-PCF using conformal transformation. Through the analyses, we find that phases of all OAM modes are not sensitive to bending and higher order OAM modes show better bending resistance. Besides that, the 9 mm radius of curvature can be taken as the bending tolerance of the C-PCF, considering mode field characteristics, loss, intra-mode walk-off and inter-mode crosstalk. Finally, the comparison is presented between the C-PCF and ring-core fiber (RCF) with similar OAM modes, and we can conclude that the C-PCF shows an obviously better performance, immune to bending, than that of the RCF.
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.
