scholarly journals Modeling Nonlinear Acoustooptic Coupling in Fiber Optics Based on Refractive Index Variation due to Local Bending

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Catalina Hurtado Castano ◽  
Rodrigo Acuna Herrera ◽  
Pedro I. Torres
Keyword(s):  
Refractive Index ◽  
Fiber Optics ◽  
Pulse Propagation ◽  
Fiber Diameter ◽  
Nonlinear Phenomena ◽  
Coupling Coefficients ◽  
Tapered Fiber ◽  
Index Variation ◽  
Nonlinear Pulse Propagation ◽  
Linear And Nonlinear

A detailed procedure is presented to compute analytically the acoustooptic coupling coefficient between copropagating core and lowest-order cladding modes in tapered fiber optics. Based on the effect of the local bending, the linear and nonlinear variations in the refractive index are modeled. A set of equations and parameters are presented in order to calculate the influence of acoustooptic effect in nonlinear pulse propagation. We will show that as the tapered fiber diameter decreases more energy can be transferred to the cladding and the nonlinear phenomena can compensate the coupling coefficients effects.

Linear and nonlinear pulse propagation in a multiple-quantum-well photonic crystal

2004 ◽  
Vol 70 (7) ◽  
Author(s):  
N. C. Nielsen ◽  
J. Kuhl ◽  
M. Schaarschmidt ◽  
J. Förstner ◽  
A. Knorr ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Quantum Well ◽  
Pulse Propagation ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
Nonlinear Pulse Propagation ◽  
Linear And Nonlinear

Dependence of the shape of fiber tapers on the nonlinear pulse propagation

2016 ◽  
Vol 25 (01) ◽  
pp. 1650002
Author(s):  
Rodrigo Acuna Herrera ◽  
Carlos A. Rodriguez
Keyword(s):  
Variational Method ◽  
Fiber Optics ◽  
Time Evolution ◽  
Optical Communications ◽  
Nonlinear Optical ◽  
Optical Pulse ◽  
Pulse Propagation ◽  
Nonlinear Parameter ◽  
Optical Pulse Propagation ◽  
Nonlinear Pulse Propagation

Using a model for the shape of tapered fiber optics, we numerically study the effect of the taper shape profile on nonlinear optical pulse propagation. We show that super-Gaussian pulses can be generated and controlled and that they are independent of higher-order nonlinearities, which makes them a good candidate for optical communications. We see that it is possible to compensate for the [Formula: see text] variation of the dispersion with the nonlinear parameter and obtain the solutions of the homogeneous nonlinear Schrödinger equation. In addition, pulse collisions can be produced using chirped pump pulses. Finally, using a variational method, we study the chirp and time evolution for the generated super-Gaussian pulses as a function of the taper elongation profile.

Nonlinear Pulse Propagation and Modulation Instability in Periodic Media with and without Defects

PIERS Online ◽  
2006 ◽  
Vol 2 (2) ◽  
pp. 177-181
Author(s):  
V. Grimalsky ◽  
Svetlana Koshevaya ◽  
Javier Sanchez-Mondragon ◽  
Margarita Tecpoyotl Torres ◽  
J. Escobedo Alatorre
Keyword(s):  
Pulse Propagation ◽  
Modulation Instability ◽  
Periodic Media ◽  
Nonlinear Pulse Propagation
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