Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Neethu Mariam Mathew"'
Autor:
Lars Gruner-Nielsen, Michael Stubert Berger, Mads Nielsen, Neethu Mariam Mathew, Karsten Rottwitt
Publikováno v:
Grüner-Nielsen, L, Berger, M S, Nielsen, M, Mathew, N M & Rottwitt, K 2022, ' A Converter for Transmission With Singlemode Performance on OM2/3/4/5 Multimode Fibers ', IEEE Photonics Technology Letters, vol. 34, no. 11, 9767850, pp. 571-574 . https://doi.org/10.1109/LPT.2022.3172487
A converter from a singlemode fiber to the fundamental mode of an OM2, OM3, OM4, or OM5 type multimode fiber is presented and is used to transmit 100 GbE with no detected errors over 1600 m multimode fiber using commercial transceivers. The converter
Autor:
Lars Grüner-Nielsen, Neethu Mariam Mathew, Michael Galili, Lars Søgaard Rishøj, Karsten Rottwitt
Publikováno v:
2023 Optical Fiber Communications Conference and Exhibition (OFC).
Results for air clad photonic lanterns are presented including new results for a 6-mode photonic lantern. Results for cross talk dynamics in a 1.6 km link versus both time and wavelengths are presented.
Publikováno v:
Technical University of Denmark Orbit
Publikováno v:
Grüner-Nielsen, L, Mariam Mathew, N, Lillieholm, M, Galili, M & Rottwitt, K 2020, ' Modeling of mimo less mode division multiplexed systems ', IEEE Photonics Technology Letters, vol. 32, no. 18, 9167271, pp. 1191-1194 . https://doi.org/10.1109/LPT.2020.3016719
A transmission model for a mode group division multiplexing system is presented. The model is used to model a two mode group system with either 10 Gbit/s NRZ modulation or 25 Gbit/s PAM4 modulation. Influence of wavelength separation between the chan
Publikováno v:
Mariam Mathew, N, Grüner-Nielsen, L, Galili, M, Lillieholm, M & Rottwitt, K 2020, ' MDM transmission using air-clad photonic lanterns ', IEEE Photonics Technology Letters, vol. 32, no. 17, pp. 1049-1052 . https://doi.org/10.1109/LPT.2020.3011183
MIMO less few mode transmission is performed using two spatial channels transmitted through 1 km of two mode graded index fiber at 10 Gb/s modulation rate. The multiplexing and de-multiplexing of the spatial channels are done using air clad photonic
Publikováno v:
Gruner-Nielsen, L, Mathew, N M & Rottwitt, K 2021, ' Characterization of few mode fiber components and connected systems ', Optics Express, vol. 29, no. 2, pp. 1140-1146 . https://doi.org/10.1364/OE.410241
Methods for measurement of polarization dependent loss and cross talk of individual few mode fiber components and connected systems are presented. A new method for determining the cross talk of the individual components, from the measurements on the
Autor:
Michael Galili, Lars Gruner-Nielsen, Magnus Hornhaver Nymann, Neethu Mariam Mathew, Karsten Rottwitt, Mads Lillieholm
Publikováno v:
OFC
For the first time, direct detection MIMO free mode division multiplexing over standard multi mode fibers, is demonstrated using photonic lantern mode multiplexers. Stable transmission performance is demonstrated over 1.6 km independent of input pola
Publikováno v:
Mathew, N M, Grüner-Nielsen, L, Lillieholm, M, Galili, M & Rottwitt, K 2022, ' Air-clad photonic lanterns: fabrication and applications ', Journal of Optics, vol. 24, no. 5, 054011 . https://doi.org/10.1088/2040-8986/ac5f23
The fabrication steps for an air-clad photonic lantern that can excite the first two LP mode groups in a multimode fiber are presented in this paper. A multiplexing crosstalk below −16.8 dB is measured on the fabricated lantern using S 2 imaging te
Publikováno v:
ICTON
Rottwitt, K, Mariam Mathew, N, Grüner-Nielsen, L & Rishøj, L S 2020, Intermodal Raman Scattering between Orbital Angular Momentum Modes in Optical Fibers . in Proceedings of 22 nd International Conference on Transparent Optical Networks . IEEE, 22 nd International Conference on Transparent Optical Networks, Bari, Italy, 19/07/2020 . https://doi.org/10.1109/ICTON51198.2020.9203012
Rottwitt, K, Mariam Mathew, N, Grüner-Nielsen, L & Rishøj, L S 2020, Intermodal Raman Scattering between Orbital Angular Momentum Modes in Optical Fibers . in Proceedings of 22 nd International Conference on Transparent Optical Networks . IEEE, 22 nd International Conference on Transparent Optical Networks, Bari, Italy, 19/07/2020 . https://doi.org/10.1109/ICTON51198.2020.9203012
This paper presents an experimental and theoretical analysis of Raman amplification of OAM modes i.e. beams carrying orbital angular momentum and spin angular momentum. We show that simple scalar equations are sufficient to describe the Raman interac
Publikováno v:
Optics Letters. 47:38
Higher-order mode converters that work over a broad wavelength range are needed for various applications. A new, to the best of our knowledge, simple and cost-effective LP02 mode converter is fabricated by tapering a bundle of single-mode fibers. The