Abstract
The intermodal delay is one of the fundamental issues in the mode of transmission which limits the propagation distance of mode division multiplexing. In this paper the theoretical background and a numerical analysis of intermodal group velocity dispersion in step-index of few-mode fiber are given. The numerical analysis is based on the general solution of the characteristic equation for step-index few mode fiber in order to compute normalized propagation constant, group delay and finally the group delay difference between fundamental LP01 mode and three selected higher modes. It was found that the material dispersion is not a negligible part of the total intermodal delay and so it should be included.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D J Richardson, J M Fini and L E Nelson Nat. Photonics 7 354 (2014)
K Imamura, K, Mukasa and T Yagi Optical Fiber Communications Conference (San Diego, march 2010, paper OWK6) (2010)
T Hayashi, T Nagashima, O Shimakawa, T Sasaki and E Sasaoka ECOC 2010 (Turin, september 2010, paper We.8.F.6) (2010)
A R Shah, R C J Hsu, A Tarighat, A H Sayed and B Jalali J. Lightw. Technol. 23 2410 (2005)
M Greenberg and M Nazarathy J. Lightw.Technol. 25 1503 (2007)
S Matsuo, Y Sasaki, I Ishida, K Takenaga, K Saitoh and M Koshiba OFC/NFOEC p 1 (2013)
F Yaman, N Bai, B Zhu, T Wang and G Li Opt. Express 18 13250 (2010)
A Ghatak and K Thyagarajan An Introduction to Fiber Optics (Cambridge, U.K.: Cambridge University Press) (1998)
A Li, A A Amin, X Chen and W Shieh OFC 2011 (San Diego, CA, Mar., PDPB8) pp 1 (2011)
A W Snyder and J D Love Optical Waveguide Theory (New York: Champan and Hall) (1983)
D Gloge Appl. Optics 10 2252 (1971)
C Chen Foundations for Guided-Wave Optics (New Jersy: John Willey & Sons) (2007)
Acknowledgements
The work described in this paper was supported in part by grants from Research Grants Council of the Hong Kong Special Administrative Region, China (Project Nos. HKU 7172/12E, HKU 17208414, HKU 17205215) and by a grant from Serbian Ministry of Education, Science and Technological Development (Project No. 171011).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kovacevic, M.S., Wong, K.K.Y. & Oh, K. A rigorous analysis of the intermodal delay in few-mode fibers. Indian J Phys 91, 1609–1614 (2017). https://doi.org/10.1007/s12648-017-1057-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12648-017-1057-4