Abstract
We propose an all-solid weakly coupled elliptical-core Bragg fiber supporting 10 vector modes (HE11a, HE11b, TM01, HE21a, HE21b, TE01, HE31a, HE31b, EH11a and EH11b) which works over a large range of wavelength across the O+C+L band. We investigate the mode neff, min∆neff and confinement loss of the fiber under the influences of design parameters. The differential mode delay between adjacent propagation modes Aeff and bending loss are also evaluated. Simulation results indicate that the designed fiber can obtain large min∆neff between adjacent vector modes (~4 × 0.0001). Thus, the specially designed Bragg fiber can be a promising candidate for short-haul MDM communication systems to simplify or eliminate MIMO-DSP.
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Acknowledgment
This work is supported by the Natural National Science Foundation of China (NSFC) (Nos. 61671055 and 61605004), the Fundamental Research Funds for the Central Universities, China (No. FRF-TP-19-016A2), and the State Key Laboratory of Advanced Optical Communication Systems Networks, China.
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Zhang, Y., Ren, F., Fan, X. et al. Design of weakly coupled ten-vector-mode elliptical-core Bragg fiber for short-haul communication across O+C+L band. Indian J Phys 95, 349–359 (2021). https://doi.org/10.1007/s12648-020-01702-w
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DOI: https://doi.org/10.1007/s12648-020-01702-w