The multispan effects of Kerr nonlinearity and amplifier noises on Shannon channel capacity of a dispersion-free nonlinear optical fiber

2001 ◽  
Vol 19 (8) ◽  
pp. 1110-1115 ◽  
Author(s):  
J. Tang
Keyword(s):  
Optical Fiber ◽  
Channel Capacity ◽  
Nonlinear Optical ◽  
Kerr Nonlinearity

scholarly journals Log-log growth of channel capacity for nondispersive nonlinear optical fiber channel in intermediate power range

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
I. S. Terekhov ◽  
A. V. Reznichenko ◽  
Ya. A. Kharkov ◽  
S. K. Turitsyn
Keyword(s):  
Optical Fiber ◽  
Channel Capacity ◽  
Nonlinear Optical ◽  
Fiber Channel

Nonlinear Optical Interactions in Optical Fibers

1998 ◽  
Vol 07 (01) ◽  
pp. 105-112 ◽  
Author(s):  
Robert W. Boyd ◽  
Eric L. Buckland
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Pulse Propagation ◽  
Fiber Type ◽  
Kerr Nonlinearity ◽  
Optical Response ◽  
Nonlinear Optical Response ◽  
Physical Processes

We report on our research program aimed at clarifying the physical processes leading to the nonlinear optical response of silica optical fibers and at studying the implications of optical nonlinearities on optical pulse propagation and optical switching devices. The dominant physical processes leading to the nonlinear optical response of an optical fiber are nonresonant electronic polarization, with essentially instantaneous response, the Raman interaction, with sub-picosecond response, and electrostriction, with nanosecond response. We present experimental results that show the consequence of each of these processes on the propagation of a light pulse through an optical fiber. We have also performed one of the first direct measurements of the electrostrictive contribution to the nonlinear refractive index of optical fibers. We measure values ranging from 1.5 × 10-16 to 5.8 × 10-16 cm2/W , depending on fiber type. These values are comparable to that of the fast, Kerr nonlinearity (i.e., sum of electronic and Raman contributions) of 2.5 × 10-16 cm2/W . The measured electrostrictive nonlinearities are significantly larger than those predicted by simple models, and the possible explanations of this difference are discussed.

scholarly journals Generation of Continuous Variable Einstein-Podolsky-Rosen Entanglement via the Kerr Nonlinearity in an Optical Fiber

2001 ◽  
Vol 86 (19) ◽  
pp. 4267-4270 ◽  
Author(s):  
Ch. Silberhorn ◽  
P. K. Lam ◽  
O. Weiß ◽  
F. König ◽  
N. Korolkova ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Kerr Nonlinearity ◽  
Continuous Variable ◽  
Einstein Podolsky Rosen

scholarly journals ANALYSIS OF ULTRA-SHORT PULSE PROPAGATION IN NONLINEAR OPTICAL FIBER

2009 ◽  
Vol 12 ◽  
pp. 219-241 ◽  
Author(s):  
Mohamed Bakry El Mashade ◽  
Mohamed Nady Abdel Aleem
Keyword(s):  
Optical Fiber ◽  
Nonlinear Optical ◽  
Pulse Propagation ◽  
Short Pulse ◽  
Ultra Short Pulse

Linear and Nonlinear Transmission of Surface Plasmon Polaritons in an Optical Nanowire

2004 ◽  
Vol 846 ◽  
Author(s):  
N. C. Panoiu ◽  
R. M. Osgood
Keyword(s):  
Surface Plasmon ◽  
Nonlinear Optical ◽  
Fdtd Method ◽  
Frequency Dispersion ◽  
Kerr Nonlinearity ◽  
Dielectric Shell ◽  
Polymer Metal ◽  
A Chain ◽  
Kerr Coefficient ◽  
20 Nm

ABSTRACTPolymer-metal composites offer the possibility of strongly enhanced nonlinear optical properties, which can be used for ultrasmall photonic devices. In this paper, we investigate numerically, by means of the finite-difference time-domain (FDTD) method, the propagation characteristics of surface plasmon polariton (SPP) modes excited in an optical nanowire consisting of a chain of either metallic cylinders or metallic spheres embedded in dielectric shells made of polymers (or other material) with optical Kerr nonlinearity. Our FDTD calculations incorporate both the nonlinear optical response of the dielectrics as well as the frequency dispersion of the metals, which is considered to obey a Drude-like model. It is demonstrated that, in the linear limit, the nanowire supports two SPP modes, a transverse and a longitudinal one, separated by Δλ = 20 nm. Furthermore, the dependence of the transmission of these SPP modes, on both the pulse peak power and Kerr coefficient of the dielectric shell, is investigated. Nonlinear optical phenomena, such as power-dependent mode frequency, switching, or optical limiting, are observed.

scholarly journals Large 3rd Order Optical Kerr Nonlinearity in 2D PdSe2 Dichalcogenide Films for Integrated Nonlinear Photonic Chips

2021 ◽  
Author(s):  
David Moss
Keyword(s):  
High Performance ◽  
Nonlinear Optical ◽  
Laser Intensity ◽  
Nonlinear Refraction ◽  
Kerr Nonlinearity ◽  
Photonic Devices ◽  
Closed Aperture ◽  
Third Order ◽  
Limiting Behaviour ◽  
Incident Laser Intensity

<p>As a novel layered noble metal dichalcogenide material, palladium diselenide (PdSe<sub>2</sub>) has attracted wide interest due to its excellent optical and electronic properties. In this work, a strong third-order nonlinear optical response of 2D PdSe<sub>2</sub> films is reported. We conduct both open-aperture (OA) and closed-aperture (CA) Z-scan measurements with a femtosecond pulsed laser at 800 nm to investigate the nonlinear absorption and nonlinear refraction, respectively. In the OA experiment, we observe optical limiting behaviour originating from large two photo absorption (TPA) in the PdSe<sub>2</sub> film of <i>β =</i> 3.26 ×10<sup>-8</sup> m/W. In the CA experiment, we measure a peak-valley response corresponding to a large and negative Kerr nonlinearity of <i>n</i><sub>2</sub> = -1.33×10<sup>-15</sup> m<sup>2</sup>/W – two orders of magnitude larger than bulk silicon. In addition, the variation of <i>n</i><sub>2</sub> as a function of laser intensity is also characterized, with <i>n</i><sub>2</sub> decreasing in magnitude when increasing incident laser intensity, becoming saturated at <i>n</i><sub>2</sub> = -9.96×10<sup>-16</sup> m<sup>2</sup>/W at high intensities. Our results show that the extraordinary third-order nonlinear optical properties of PdSe<sub>2</sub> have strong potential for high-performance nonlinear photonic devices.</p>

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