Results 221 to 230 of about 17,315 (253)

New Gaussian-based approximation for modelling non-linear effects in optical fibers

Journal of Lightwave Technology, 1994
The use of Gaussian field approximations enables simple analytical models to be derived for non-linear fibers and doped-fiber lasers and amplifiers. A new Gaussian-based method is described that is as easy to use as the standard Gaussian approximations, yet provides an rms error in the confinement factor of only 1.1% for a wide range of matched ...
M.J. Holmes, D.M. Spirit, F.P. Payne
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Estimation of non-linear effects in optical fiber systems based on perturbation models

2015 XVI Workshop on Information Processing and Control (RPIC), 2015
In this paper we introduce an estimation model of the non-linear effects which affect the signal propagating through optical fiber communication systems with wavelength division multiplexing (WDM). The emergence of non-linear effects with the increase of the transmitted power represents a fundamental limit in current high capacity communication systems.
Evelin Battocchio, Laureano Bulus Rossini, Pablo Costanzo Caso   +2 more
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BER Estimation for Optical Communication System using Variety of Fibers in the Presence of Dispersion and Fiber Non-Linearities

IETE Journal of Research, 2007
In this paper, optical transmission system at 10Gb/s using NRZ source has been simulated with commercial package OptSim. The Bit Error Rate (BER) for optical transmission system using a variety of available fibers near reference loss wavelength of 1550 nm in the presence of chromatic dispersion and fiber nonlinearities has been estimated up to 300 kms.
Sandeep Karya, Ajay K Sharma, R. A Agarwala   +2 more
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Self-stabilizing additive-pulse mode-locking due to thermo-optical non-linearity in an optical fiber

Applied Physics B: Lasers and Optics, 1998
, 1671 (1991)] described a Nd:YLF APM laser which somehow automatically adjusted the relative resonator phase. We reproduce this behavior and analyse its origin. Thermal effects due to the light power guided in the fiber affect the effective fiber length, which in turn influences the phase and thus the power level; hence a closed servo loop results. We
D. Jacob, A. Oberdorfer, F. Mitschke
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Impacts of Non-linear Effects in DWDM Based Fiber Optic Communication System

2019
Nowadays, a technology is developed and there is a large amount of bandwidth capacity is necessary to the requirement of users. In this paper, the FWM power is calculated by varying the parameters such as channel spacing, effective area, fiber length and input power. The FWM power is suppressed by using hybrid modulation technique.
S. Esther Jenifa, K. Gokulakrishnan
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Methods of Laser, Non-Linear, and Fiber Optics in Studying Fundamental Problems of Astrophysics

Astrophysical Bulletin, 2018
Precise measurements of Doppler shifts of lines in stellar spectra allowing the radial velocity to be measured are an important field of astrophysical studies. A remarkable feature of the Doppler spectroscopy is the possibility to reliably measure quite small variations of the radial velocities (its acceleration, in fact) during long periods of time ...
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Instabilities and rogue waves in non-linear fiber optics

2014 16th International Conference on Transparent Optical Networks (ICTON), 2014
Pierre-Ambroise Lacourt, Benjamin Wetzel, Goëry Genty, Frédéric Dias, John M. Dudley   +4 more
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Optical fiber mirror using cascaded second-order non-linearity [PDF]

, 1995
In recent years there has been a revival of interest in frequency conversion based on second-order nonlinearities. This interest has been primarily due to progress in the periodic poling of crystals [1] and silica glasses [2]. These new technologies have permitted efficient quasi-phase matched frequency conversion in both bulk and waveguide geometries.
Mel'nikov, I.V., Russell, P.St.J.
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Capacity Improvement in Dispersive, Non-Linear Optical Fiber

International Conference on Computational Intelligence and Multimedia Applications (ICCIMA 2007), 2007
T. Sabapathi, S. Sundaravadivelu
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Integrated all optical transmodulator circuits with non-linear gain elements and tunable optical fibers

2012
We characterize integrated InP circuits for high speed ‘all-optical’ signal processing. Single chip circuits act as optical transistors. Transmodulation is performed by non-linear gain sections. Integrated tunable filters give signal equalization in time domain.
Kuindersma, P.I., Leijtens, X.J.M., Zantvoort, van, J.H.C., Waardt, de, H.   +3 more
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