Abstract
In this work, we propose bent hybrid leakage channel fiber (LCF) designs to achieve effectively single-mode operation with low bending loss (BL) to overcome the limitation of mode area at the commercial packaging radius of 7.5 cm for doped fiber laser applications. Large-mode-area (LMA) designs are realized by introducing high-index rings around the low-index fluorine-doped silica rods to compensate the bend induced distortion. A full-vectorial finite-element method is used to obtain the bending characteristics of the proposed LMA hybrid LCF designs. The optimized hybrid LCF exhibits an effective mode area of 1406 μm 2 for a core diameter of ~40 μm, good beam quality factor M2 of 1.19 and differential BL ratio of 130 between higher-order mode (LP11-like) and the fundamental mode (LP01-like) at the bending radius of 7.5 cm.
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 callMore From: IEEE Journal of Selected Topics in Quantum Electronics
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.
