Results 251 to 260 of about 409,958 (292)

Forward four-wave mixing with defocusing nonlinearity

Optics Letters, 2007
We experimentally demonstrate degenerate, forward four-wave mixing effects in a self-defocusing photorefractive medium, in both one and two transverse dimensions. We observe the nonlinear evolution of new modes as a function of propagation distance, in both the near-field and far-field (Fourier space) regions.
Shu, Jia, Wenjie, Wan, Jason W, Fleischer   +2 more
openaire   +2 more sources

Microresonator-enhanced four-wave mixing

SPIE Proceedings, 2006
ABSTRACT Four-wave mixing (FWM) is an important mechanism for frequency conversion and fast optical switching in all-optical communication networks. In this paper, we demonstrate that microring resonator filters can generate significant conversion efficiency with sub-millimeter physi cal size.
Kuncheng Zheng, Vishnupriya Govindan, Steve Blair   +2 more
openaire   +1 more source

Four-Wave Mixing in Metamaterials

Russian Physics Journal, 2018
Interaction of four counterpropagating waves in a cubic medium being “left” for the signal wave is considered in the constant-intensity approximation. Analytical expression for the signal wave intensity is derived for the general case of four-wave interaction in a metamaterial.
R. J. Kasumova, G. A. Safarova, Sh. Sh. Amirov, A. R. Akhmadova   +3 more
openaire   +1 more source

Four-Wave-Mixing (FWM)

2004
Four-Wave-Mixing (FWM), or sometimes four-photon-mixing (FPM), describes a nonlinear optical effect at which four waves or photons interact with each other due to the third order nonlinearity of the material. As a result, new waves with sum and difference frequencies are generated during the propagation in the waveguide.
openaire   +1 more source

Four-wave mixing in EDFAs

Optical Fiber Communication Conference. Technical Digest Postconference Edition. Trends in Optics and Photonics Vol.37 (IEEE Cat. No. 00CH37079), 2002
We study FWM in C- and L-band EDFAs. We observe that FWM efficiency is determined by fiber length and channel spacing. We show that FWM from EDFAs exceeds that from non-zero dispersion-shifted fiber in DWDM system.
Y. Liu, S. Burtsev, S. Hegarty, R. Mozdy, M. Hempstead, R. Smart   +5 more
openaire   +1 more source

Four-wave-mixing gap solitons

Physical Review A, 2010
We report an experimental demonstration of generating gap soliton trains in a four-wave-mixing (FWM) signal. Such spatial FWM surfacelike gap soliton trains are induced in a periodically modulated self-defocusing atomic medium by the cross-phase modulation, which can be reshaped under different experimental conditions, such as different atomic ...
Yanpeng Zhang, Zhiguo Wang, Huaibin Zheng, Chenzhi Yuan, Changbiao Li, Keqing Lu, Min Xiao   +6 more
openaire   +1 more source

Instabilities In Four-Wave Mixing

SPIE Proceedings, 1986
Recent research on instabilites in the four-wave mixing process is summarized. The four-wave mixing process can cause a laser beam to become unstable to the growth of new frequency components as the beam propagates through a nonlinear medium. Similar instabilities can occur in more complicated optical systems such as lasers and bistable optical devices.
Robert W. Boyd, Alexander L. Gaeta, Daniel J. Gauthier, Michelle S. Malcuit, Paul Narum   +4 more
openaire   +1 more source

Infrared degenerate four-wave mixing

Optical Society of America Annual Meeting, 1991
In degenerate four-wave mixing, three input beams of identical frequency interact with a nonlinear medium to generate a fourth coherent signal beam. The efficiency is resonant with an atomic or molecular transition. The coherent nature of the signal beam offers many advantages for minor species detection. Prior experiments using ultraviolet wavelengths
D. J. Rakestraw, R. L. Vander Wal, B. E. Holmes, R. L. Farrow, J. B. Jeffries   +4 more
openaire   +1 more source

Four-Wave Mixing

2005
L. Canioni, L. Sarger
openaire   +1 more source

Four-Wave Mixing

2022
openaire   +1 more source