Abstract
Effects of increasing core count in limited cladding diameter and cladding thickness constraints and their arrangements, i.e., core layouts on the crosstalk variation in heterogeneous and trench-assisted (TA) heterogeneous MCFs are investigated using the expression of crosstalk derived from the coupled mode equations and the finite element method (FEM) based FemSIM software. Only two kinds of heterogeneous cores having different core radius and refractive index are used in the present analysis. For 12-Core TA MCF, approx. 35 dB of crosstalk level can be optimized by proper selection of core layout, and whereas for high core count such as 24-Core and 30-Core TA MCFs, this value reduces to 30 dB and 20 dB, respectively, due to the decrease in the core pitch and the increase in the number of surrounding cores. This result shows that core count and layout have a significant impact on the crosstalk variations in MCFs.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Tu J, Saitoh K, Koshiba M, Takenaga K, Matsuo S (2012) Design and analysis of large-effective-area heterogeneous trench-assisted multi-core fiber. Optic Expr 20:15157–15170
Hayashi T et al (2016) Effects of core count/layout and twisting condition on spatial mode dispersion in coupled multi-core fibers. In: 42nd European conference on optical communication, Dusseldorf, Germany, pp 1–3
Ye F, Tu J, Saitoh K, Takenaga K, Matsuo S, Takara H, Morioka T (2016) Design of homogeneous trench-assisted multi-core fibers based on analytical model. J Lightwave Technol 34:4406–4416
Puttnam BJ et al (2016) High capacity multi-core fiber system. In: 21st European conference on networks and optical communication, Lisbon, pp 29–34
Hayashi T, Taru T, Shimakawa O, Sasaki T, Sasaoka E (2011) Design and fabrication of ultra-low crosstalk and low-loss multi-core fiber. Optic Expr 19:16576–16592
Chan FYM, Lau APT, Tam HY (2012) Mode coupling dynamics and communication strategies for multi-core fiber systems. Optic Expr 20:4548–4563
Tu J, Xie X, Long K (2016) Theoretical analysis on inter-core crosstalk suppression model for multi-core fiber. China Commun 13:192–197
Koshiba M, Saitoh K, Kokubun Y (2009) Heterogeneous multicore fibers: proposal and design principle. IEICE Electr Expr 6:98–103
Sasaki Y, Amma Y, Takenaga K, Matsuo S, Saitoh K, Koshiba M (2013) Investigation of crosstalk dependencies on bending radius of heterogeneous multicore fiber. In: Optical fiber communication conference and exposition and the national fiber optic engineers conference, Anaheim, CA, pp 1–3
Amma Y et al (2015) High-density multicore fiber with heterogeneous core arrangement. In: Optical fiber communications conference and exhibition, Los Angeles, CA, pp 1–3
Xie X, Tu J, Zhou X, Long K, Saitoh K (2017) Design and optimization of 32-core rod/trench assisted square-lattice structured single-mode multi-core fiber. Optic Expr 25:5119–5132
Fujisawa T et al (2017) Crosstalk analysis of heterogeneous multicore fibers using coupled-mode theory. IEEE Photonics J 9:1–8
Koshiba M, Siatoh K, Takenaga K, Matsuo S (2012) Analytical expression of average power-coupling coefficients for estimating intercore crosstalk in multicore fibers. IEEE Photonics J 4:1987–1995
Koshiba M, Saitoh K, Takenaga K, Matsuo S (2011) Multi-core fiber design and analysis: coupled-mode theory and coupled-power theory. Optic Expr 19:B102–B111
Okamoto K (2006) Fundamentals of optical waveguides, academic. Academic Press, San Diago, USA, pp 159–187
Ye F, Tu J, Saitoh K et al (2014) Simple analytical expression for crosstalk estimation in homogeneous trench assisted multicore fibers. Opt Expr 22:23007–23018
Acknowledgements
The authors are thankful to the National Institute of Technology, Patna for immense support to carry out this work.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Farooque, U., Ranjan, R. (2020). Effects of Core Count and Layout on the Bending-Radius-Dependent Crosstalk Variations in Heterogeneous and Trench-Assisted Heterogeneous Multicore Fiber. In: Janyani, V., Singh, G., Tiwari, M., d’Alessandro, A. (eds) Optical and Wireless Technologies . Lecture Notes in Electrical Engineering, vol 546. Springer, Singapore. https://doi.org/10.1007/978-981-13-6159-3_18
Download citation
DOI: https://doi.org/10.1007/978-981-13-6159-3_18
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-6158-6
Online ISBN: 978-981-13-6159-3
eBook Packages: EngineeringEngineering (R0)