2 November 2017 Design and characterization of 16-mode PANDA polarization-maintaining few-mode ring-core fiber for spatial division multiplexing
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Abstract
A PANDA polarization-maintaining few-mode ring-core fiber (PM-FM-RCF) structure with two air holes around the ring core is proposed. The relative mode multiplicity factor (RMMF) is defined to evaluate the spatial efficiency of the designed PM-FM-RCF. The performance analysis and comparison of the proposed PANDA PM-FM-RCFs considering three different types of step-index profiles are detailed. Through modal characteristic analysis and numerical simulation, the PM-FM-RCF with a lower refractive index difference ( Δ n oi = 1.5 % ) between the ring core and the inner central circle can support up to 16 polarization modes with large RMMF at C-band, which shows the optimum modal properties compared with the PM-FM-RCF with higher Δ n oi . All the supported polarization modes are effectively separated from their adjacent polarization modes with effective refractive index differences ( Δ n eff ) larger than 10 4 , which also show relatively small chromatic dispersion ( 20 to 25    ps / nm / km ), low attenuation ( < 1.4    dB / km ), and small bending radius ( 8    mm ) over the C-band. The designed PM-FM-RCF can be compatible with standard single-mode fibers and applied in multiple-input multiple-output-free spatial division multiplexing optical networks for short-reach optical interconnection.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Yuan Cao, Yongli Zhao, Xiaosong Yu, Jiawei Han, Jie Zhang, "Design and characterization of 16-mode PANDA polarization-maintaining few-mode ring-core fiber for spatial division multiplexing," Optical Engineering 56(11), 116102 (2 November 2017). https://doi.org/10.1117/1.OE.56.11.116102 . Submission: Received: 15 June 2017; Accepted: 11 October 2017
Received: 15 June 2017; Accepted: 11 October 2017; Published: 2 November 2017
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