Author Affiliations
Abstract
Department of Physics, University of Ottawa, MacDonald Hall, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5, Canada
The most general model of elliptical birefringence in an optical fiber has been developed for a steady-state and transient stimulated Brillouin scattering interaction. The impact of the elliptical birefringence is to induce a Brillouin frequency shift and distort the Brillouin spectrum—which varies with different light polarizations and pulsewidths. The model investigates the effects of birefringence and the corresponding evolution of spectral distortion effects along the fiber, providing a valuable prediction tool for distributed sensing applications.
Fiber optics Nonlinear optics, fibers Birefringence Polarization Scattering, stimulated Brillouin Photonics Research
2014, 2(5): 05000126
Author Affiliations
Abstract
Department of Physics, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
The most general model of elliptical birefringence in an optical fiber is extended to describe a transient Brillouin interaction including both gain and loss. The effects of elliptical birefringence cause a Brillouin spectral shape distortion, which is detrimental for fiber sensing techniques. The model investigates the effects of birefringence and the corresponding evolution of spectral distortion effects along the fiber, and also investigates regimes where this distortion is minimal.
310.5448 Polarization, other optical properties 290.5900 Scattering, stimulated Brillouin 290.5830 Scattering, Brillouin 190.4370 Nonlinear optics, fibers Chinese Optics Letters
2014, 12(12): 123101
Author Affiliations
Abstract
Improved all-optical OR gates are proposed, using a novel fiber nonlinearity-based technique, based on the principles of combined Brillouin gain and loss in a polarization-maintaining fiber (PMF). Switching contrasts are simulated to be between 82.4%-83.6%, for two respective configurations, and switching time is comparable to the phonon relaxation time in stimulated Brillouin scattering (SBS).
200.4660 Optical logic 060.2310 Fiber optics 190.4370 Nonlinear optics, fibers 190.5890 Scattering, stimulated 200.0200 Optics in computing Chinese Optics Letters
2014, 12(8): 082001
Author Affiliations
Abstract
Fiber Optics Group, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
A highly accurate, fully analytic solution for the continuous wave and the probe wave in Brillouin amplification, in lossless optical fibers, is given. It is experimentally confirmed that the reported analytic solution can account for spectral distortion and pump depletion in the parameter space that is relevant to Brillouin fiber sensor applications, as well as applications in photonic logic. The analytic solutions are valid characterizations of Brillouin amplification in both the low and high nonlinearity regime, for short fiber lengths.
Photonics Research
2014, 2(1): 01000001
