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Few Mode Ring-Core Fibre Amplifier for Low Differential Modal Gain

Y. Jung, Q. Kang, L. Shen, S. Chen, H. Wang, Y. Yang, K. Shi, B. C. Thomsen, R. Amezcua Correa, Z. Sanjabi Eznaveh, J. Carlos Alvarado Zacarias, J. Antonio-Lopez (+4 others)
2017 2017 European Conference on Optical Communication (ECOC)  
We report a few-mode ring-core fibre amplifier for mode division multiplexed transmission.  ...  We achieve very low differential modal gain (<1dB) for 5 spatial modes over the C-band highlighting the benefits of the ring core approach.  ...  2] and various active fibre designs have [3] [4] [5] been proposed to achieve low differential modal gain (DMG).  ... 
doi:10.1109/ecoc.2017.8345893 fatcat:jrgwiaosp5d7ba3lqmmfje365i

Mode Division Multiplexing Based on Ring Core Optical Fibres

Jie Liu, Guoxuan Zhu, Junwei Zhang, Yuanhui Wen, Xiong Wu, Yanfeng Zhang, Yujie Chen, Xinlun Cai, Zhaohui Li, Ziyang Hu, Jiangbo Zhu, Siyuan Yu (+1 others)
2018 IEEE Journal of Quantum Electronics  
RCF-based optical amplifiers (both rare-earth doped and Raman) are shown to deliver low differential mode gain due to the radial confinement of light in the ring core.  ...  In addition, RCF-based amplifiers can also provide more equalized gain for all guided signal modes because they have similar mode profiles [23, 24] , which can reduce the differential modal gain (DMG)  ... 
doi:10.1109/jqe.2018.2864561 fatcat:ayckl3gs2nbenh3xm3ionnivsq

Space-division multiplexing in optical fibres

D. J. Richardson, J. M. Fini, L. E. Nelson
2013 Nature Photonics  
or multi-mode) make no attempt to use these as parallel channels for independent signals.  ...  Conspicuously, one potentially enormous source of improvement has however been left untapped in these systems: fibres can easily support hundreds of spatial modes, but today's commercial systems (single-mode  ...  In general the modes will exhibit differential mode group delays (DMGD) and also differential modal loss or gain.  ... 
doi:10.1038/nphoton.2013.94 fatcat:egdr65aduzgrjmea5zx5esdwji

Yb-doped large-pitch fibres: effective single-mode operation based on higher-order mode delocalisation

Jens Limpert, Fabian Stutzki, Florian Jansen, Hans-Jürgen Otto, Tino Eidam, Cesar Jauregui, Andreas Tünnermann
2012 Light: Science & Applications  
Hence, fibre designs that allow for very large mode areas at high average powers with diffraction-limited beam quality are of enormous interest.  ...  Ytterbium-doped, rod-type, large-pitch fibres (LPF) enable extreme fibre dimensions, i.e., effective single-mode fibres with mode sizes exceeding 100 times the wavelength of the guided radiation, by exploiting  ...  for the effective single-mode operation of these few-mode fibres) is extremely challenging.  ... 
doi:10.1038/lsa.2012.8 fatcat:5ttxtncyjvdvdjt6sciku3nl2q

Mode group specific amplification length in an asymmetric LPG assisted few-mode EDFA

Vipul Rastogi, Ankita Gaur, Pierre Aschieri, Bernard Dussardier
2017 Optics Communications  
modal gain (DMG) to any desired value.  ...  The modes of FMF are launched into the central core of the EDF, are converted into ring modes using LPG for amplification and then converted back into central core modes using another LPG.  ...  This imposes that the differential modal gain (DMG) be carefully controlled to compensate for the differential modal loss along the passive FMF span between repeaters.  ... 
doi:10.1016/j.optcom.2016.07.060 fatcat:pqsxlkiemrg6tewkpj4k6qvc3e

New optical fibres for high-capacity optical communications

D. J. Richardson
2016 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences  
In this paper, I review physical layer options that can be considered to address this requirement including the potential for reduction in both fibre loss and nonlinearity for single-mode fibres, the development  ...  of ultrabroadband fibre amplifiers and finally the use of space division multiplexing.  ...  In MDM, the individual modes accumulate differential mode group delays (DMGDs) during propagation and likely also differential modal loss or gain due to mode-dependent performance of the various in-line  ... 
doi:10.1098/rsta.2014.0441 pmid:26809569 pmcid:PMC4733920 fatcat:xtt576vybzdzhhnvqzpqlihc2m

Hollow-core photonic bandgap fibers: technology and applications

Francesco Poletti, Marco N. Petrovich, David J. Richardson
2013 Nanophotonics  
of a 5-m long state-of-the-art near-IR-guiding fibre; (C) is a simulation result showing a contour plot (2 dB spacing) of the intensity profile of the longitudinally propagating fundamental guided mode  ...  Since the early conceptual and practical demonstrations in the late 1990s, Hollow-Core Photonic Band Gap Fibres (HC-PBGFs) have attracted huge interest by virtue of their promise to deliver a unique range  ...  the first few core-guided modes, and those that substantially degrade the usefulness of the fibre, i.e., surface modes and higher-order core-guided modes.  ... 
doi:10.1515/nanoph-2013-0042 fatcat:jfczvrwg4vb7xks5ztzkdj2xwm

Demonstration of an erbium-doped fiber with annular doping for low gain compression in cladding-pumped amplifiers

C. Matte-Breton, H. Chen, N. K. Fontaine, R. Ryf, R.-J. Essiambre, C. Kelly, C. Jin, Y. Messaddeq, Sophie LaRochelle
2018 Optics Express  
Higher gain and saturation output power are also key issues in cladding-pumped multi-core amplifiers.  ...  Small gain compression EDFAs are of interest for applications that require input channel reconfiguration.  ...  When simultaneously amplifying multiple modes, the more uniform pump power distribution over the optical fiber crosssection can reduce differential modal gain [19] .  ... 
doi:10.1364/oe.26.026633 fatcat:jjtgtl7pn5et5doqcbjcvenf2e

Demonstration of amplified data transmission at 2 µm in a low-loss wide bandwidth hollow core photonic bandgap fiber

M. N. Petrovich, F. Poletti, J. P. Wooler, A.M. Heidt, N.K. Baddela, Z. Li, D.R. Gray, R. Slavík, F. Parmigiani, N.V. Wheeler, J.R. Hayes, E. Numkam (+13 others)
2013 Optics Express  
Through the use of a custom built Thulium doped fiber amplifier with gain bandwidth closely matched to the fiber's low loss window, error-free 8 Gbit/s transmission in an optically amplified data channel  ...  The fiber has a record low loss for this wavelength region (4.5 dB/km at 1980 nm) and a >150 nm wide surface-mode-free transmission window at the center of the bandgap.  ...  The amplifier is capable of providing a maximum gain of 34 dB for a signal input power of −21.9 dBm and a saturated output power of 22 dBm.  ... 
doi:10.1364/oe.21.028559 pmid:24514368 fatcat:6j4zvr5z4jfx7f767mwy7qzu7q

Structure for fast photonic medium on application of SDM communication using SiO 2 doped with GeO 2 , and F Materials

Bhagyalaxmi Behera, Shailendra K. Varshney, Mihir N. Mohanty
2021 IET Nanodielectrics  
For the proposed few-mode fibre (FMF), Fused Silica (SiO 2 ) is considered as a host-material, whereas Germanium Oxide(GeO 2 ) and Fluorine(F)are taken as the dopant for large data transmission.  ...  This work presents a new approach for the design of an FMF with a Gaussian core and a trench in the cladding.  ...  This dimension of research is getting benefited through three recent fibre techniques such as few-mode fibres (FMFs) [14, [17] [18] [19] [20] [21] [22] , multi-core few-mode fibres (MC-FMF) [15, 16,  ... 
doi:10.1049/nde2.12009 fatcat:dvx3qx6xqnbjpinp3lipm6tafa

Generation of sub-40 fs pulses at 1.8 μ m by chirp-assisted Raman scattering in hydrogen-filled hollow-core fibre [article]

Sébastien Loranger, Philip St.J. Russell, David Novoa
2020 arXiv   pre-print
This is achieved by pressure-tuning the dispersion and avoiding Raman gain suppression by adjusting the chirp of the pump pulses and the proportion of higher order modes launched into the fibre.  ...  Here we report generation of sub-40 fs pulses at 1.8 microns, with quantum efficiencies of 50% and without need for post-compression, in hydrogen-filled hollow-core photonic crystal fibre pumped by a commercial  ...  Acknowledgments We thank Francesco Tani and Daniel Schade for useful discussions and help with various aspects of the project. This work is financially supported by the Max-Planck-Gesellschaft (MPG).  ... 
arXiv:2006.16782v1 fatcat:wipyg7j5zrdoffp2xvq4h56hry

Microstructured air-silica fibres: Recent developments in modelling, manufacturing and experiment [article]

Dominique Pagnoux, Philippe Roy, Stéphane Hilaire
2010 arXiv   pre-print
A particular attention is given to hollow- core photonic bandgap fibres and their applications.  ...  Characteristics measured on fibres manufactured in our laboratory or reported in the literature are analysed.  ...  and for providing some of the tested fibres.  ... 
arXiv:1003.5069v1 fatcat:l4wgdoawxbfj7mqmxqmpdhbd6a

Front Matter: Volume 9634

2015 24th International Conference on Optical Fibre Sensors  
Publication of record for individual papers is online in the SPIE Digital Library.  ...  3M Study of few-mode fiber based SMS sensor for simultaneous measurement of temperature and strain [9634-67] x Proc. of SPIE Vol. 9634 963401-10 9634 3O Optical fiber sensor for simultaneous measurement  ...  for lasers, amplifiers and sensors [9634-194] 9634 4G Real-time multi-monitoring interrogation based on Fourier domain mode-locked fiber laser for measurement of radiation dose and multipoint strain  ... 
doi:10.1117/12.2214760 fatcat:e5gwpjqmufcrdjy4nqzl7tboja

Dispersion engineering of mode-locked fibre lasers

R I Woodward
2018 Journal of Optics  
Opportunities for further pulse energy scaling are discussed, in addition to considering other recent advances including automated self-tuning cavities and fluoride-fibre-based mid-infrared mode-locked  ...  Mode-locked fibre lasers are important sources of ultrashort pulses, where stable pulse generation is achieved through a balance of periodic amplitude and phase evolutions.  ...  Acknowledgments I thank Stuart Jackson, Darren Hudson, Matthew Majewski, Roy Taylor, Edmund Kelleher, Robbie Murray and Tim Runcorn for lively discussions and suggestions on this topic.  ... 
doi:10.1088/2040-8986/aaa9f5 fatcat:4ikbaqny4zg2pe2seangcotd6m

Survey and Evaluation of Space Division Multiplexing: From Technologies to Optical Networks

George M. Saridis, Dimitris Alexandropoulos, Georgios Zervas, Dimitra Simeonidou
2015 IEEE Communications Surveys and Tutorials  
These include pumped-distributed Raman amplifiers for few-modes [65] and long-haul multi-core transmission [66] , fiber bundle Erbium Doped Fiber Amplifier (EDFA) with low crosstalk and uniform gain  ...  low crosstalk, DMD, modal dispersion low modal interference no MIMO-DSP SDM fibers light MIMO-DSP high SSE high SSE low integration heavy MIMO-DSP medium SSE multi/few mode fiber  ...  His work has been accepted for oral presentation in international optical communication conferences like OFC 2015 and ECOC 2015.  ... 
doi:10.1109/comst.2015.2466458 fatcat:7ax7wppxp5gevglmtz2ix77lwi
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