Results 191 to 200 of about 11,328 (260)

Closed-form FWM expressions accounting for the impact of modulation format

Optics Communications, 2019
Four Wave Mixing (FWM) is one of the main transmission impairments in coherent optical systems and a broad gamut of analytical expressions calculating its power already exists in the literature.
D. Uzunidis, C. Matrakidis, A. Stavdas
semanticscholar   +1 more source

Kramers-Kronig relations in FWM spectroscopy

Journal of Physics B: Atomic, Molecular and Optical Physics, 1994
The Kramers-Kronig (K-K) relations are verified for the third-order non-linear optical susceptibilities which are described by known expressions, obtained by the density matrix formalism. Possible applications of the K-K relations in non-linear Raman spectroscopy techniques are also discussed. Coupling of the real and imaginary parts of CARS excitation
P P Kircheva, G B Hadjichristov
openaire   +1 more source

To Decrease Maintenance Issues using FWM in Ultradense WDM Systems and Enhancing Optimum Placement of Optical Phase Conjugation [PDF]

Journal of Optical Communications, 2020
In this work, a maintenance issues resolved suppression method of four-wave mixing (FWM) is proposed using optical phase conjugation (OPC) modules and different placements of OPCs are investigated in ultradense wavelength division multiplexing (WDM ...
Arti Vaish
exaly   +2 more sources

FWM in distributed Raman fiber amplifier

SPIE Proceedings, 2004
We observed the FWM (Four Wave Mixing) phenomenon in broadband distributed Raman fiber amplifier (DRFA). This is one of the nonlinear effects which limits the performance of Raman amplified systems. We analyze the FWM effects for different fiber types. Finally we reduced the FWM influence successfully by choosing proper wavelengths in experiment.
Wanhui He, Xinda Yin, Chengpeng Fu, Taotao Yang   +3 more
openaire   +1 more source

Silver nanoparticle-enhanced four-wave mixing (FWM) imaging technique for visualizing sialic acid on cell membrane

, 2019
An enhancement technique for the four-wave mixing (FWM) signal given by a silver nanoprobe was built for high contrast, dynamic bioimaging. The FWM signal of Ag nanoparticles (AgNPs) with excitation light was studied in detail.
Yijia Geng, Lili Cong, Yu Tian, Zepeng Huo, Ying-hui Wang, Lu Xing, Shuping Xu, C. Liang, Weiqing Xu   +8 more
semanticscholar   +1 more source

FEC performance in the presence of FWM and dispersion

Frontiers in Optics, 2003
In this paper we evaluate the performance of forward error correction (FEC) techniques in the presence of four wave mixing (FWM) and dispersion induced inter-symbol interference (ISI). A comparison with the detuning technique [1] is also presented, for the case of FWM penalty mitigation.
Eduardo Mobilon, Miriam R. X. de Barros, Aldário C. Bordonalli   +2 more
openaire   +1 more source

FWM-based Wavelength Conversion in a Silicon Germanium Waveguide

Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, 2013
We demonstrate four-wave mixing based wavelength conversion of 40 Gbaud DPSK and QPSK signals in a 2.5-cm long silicon germanium waveguide with a nonlinearity coefficient of 25.8/W/m.
Mohamed A. Ettabib, Kamal Hammani, Francesca Parmigiani, L. Jones, Alexandros Kapsalis, Adonis Bogris, Dimitris Syvridis, Mickael Brun, Pierre Labeye, Sergio Nicoletti, Periklis Petropoulos   +10 more
openaire   +1 more source

Research on the FWM of optical CDMA Transmission System

2008 China-Japan Joint Microwave Conference, 2008
A theoretical analysis is presented to evaluate the BER performance of a direct sequence optical code division multiple access (DS-OCDMA) system with dispersion shifted fiber (DSF) considering the effect of four wave mixing(FWM). To verify the analytical expression of BER, the BER performance is evaluated using Matlab simulation with 63 chipsper bit m ...
Hou Fenfei, Sun Xiaohan
openaire   +1 more source

FWM Implementation and Analysis Using MATLAB

2013
The third-order nonlinear process of four-wave mixing (FWM) in silicon-on-insulator (SOI) waveguides has been investigated intensively due to the large third-order susceptibility of silicon. The exploration of nonlinear optical processes in SOI waveguides has achieved a level from where the researchers can move ahead of the proof-of-concept stage and ...
Jameel Ahmed, Mohammed Yakoob Siyal, Freeha Adeel, Ashiq Hussain   +3 more
openaire   +1 more source

Novel frontiers in the stabilization of FD-FWM microcombs

2017 16th International Conference on Optical Communications and Networks (ICOCN), 2017
In this contribution, we will review our recent activities in the development of double nested cavity lasers. Several stable operating regimes can be achieved over a wide range of conditions.
Hualong Bao, Andrew Cooper, Sai T. Chu, David J. Moss, Roberto Morandotti, Brent E. Little, Marco Peccianti, Alessia Pasquazi   +7 more
openaire   +1 more source