Simulation of ultrashort pulse transmission in a chain of fused silica microspheres
- Authors: Kozlova E.S.1
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Affiliations:
- Samara State Aerospace University
- Issue: Vol 14, No 3 (2014)
- Pages: 138-143
- Section: ELECTRONICS, MEASURING EQUIPMENT, RADIO ENGINEERING AND COMMUNICATION
- URL: https://journals.ssau.ru/vestnik/article/view/2082
- DOI: https://doi.org/10.18287/1998-6629-2014-0-3(45)-138-143
- ID: 2082
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Abstract
The paper is devoted to the simulation of ultrashort pulse propagation in waveguides of two types. The first type (type 1) represents an ordinary waveguide made of cylindrically shaped fused silica without coating. The second type (type 2) consists of microspheres made of the same fused silica following one another. A three-parameter Sellmeyer model is used to take into account the dependence of electrical permittivity on the frequency of radiation. The coefficients of pulse broadening and amplification as well as the coefficient of the pulse spectrum narrowing have been calculated. The numerical simulation using the FDTD method which takes into account the frequency dependence of the permittivity and implemented in the FullWAVE software package showed that there is no temporal broadening in the case of propagation of linearly polarized ultrashort pulse 3.55 fs long with a central wavelength of 532 nm in a waveguide consisting of a sequence of fused silica microspheres with the radius of 1 mkm, while there is a two-fold temporal broadening of the pulse in the case of transmission of this pulse in a conventional silica cylindrical waveguide.
About the authors
E. S. Kozlova
Samara State Aerospace University
Author for correspondence.
Email: kozlova.elena.s@gmail.com
Postgraduate student of the Department of Mathematics and Computer Science
Russian FederationReferences
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