The effect of a waveguide on the formation of optical terahertz solitons

Maria V. Komissarova; Sergey V. Sazonov; Aleksey A. Kalinovich; Irina G. Zakharova

doi:10.1117/12.2520743

30 April 2019 The effect of a waveguide on the formation of optical terahertz solitons

Maria V. Komissarova, Sergey V. Sazonov, Aleksey A. Kalinovich, Irina G. Zakharova

Proceedings Volume 11026, Nonlinear Optics and Applications XI; 110260G (2019) https://doi.org/10.1117/12.2520743
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

Nowadays the generation of terahertz pulses using the mechanism of optical rectification is intensively studied both theoretically and experimentally. If the group velocity of an optical pulse is equal to the phase velocity in the terahertz range of a medium with quadratic nonlinearity, then a two-component optical-terahertz temporal soliton can be formed. In the present work, we study the possibility of forming an optical-terahertz spatiotemporal soliton (optical-terahertz bullet) in a gradient focusing waveguide. If the duration of the input optical pulse lies in the femtosecond region, then when generating a terahertz signal, the nonlinearity dispersion is important. This also leads to the influence of the phase modulation of the optical pulse on the generation process. We take this circumstance into account when considering the formation of optical-terahertz bullets. The system of related equations for the complex envelope of the optical pulse and the electric field of the THz pulse is solved numerically. The original conservative nonlinear finite-difference scheme is realized with the help of a pseudo-spectral method. We find the conditions under which it is possible to trap an optical terahertz pulse into a focusing waveguide with the formation of optical-terahertz bullets.

Conference Presentation

Citation Download Citation

Maria V. Komissarova, Sergey V. Sazonov, Aleksey A. Kalinovich, and Irina G. Zakharova "The effect of a waveguide on the formation of optical terahertz solitons", Proc. SPIE 11026, Nonlinear Optics and Applications XI, 110260G (30 April 2019); https://doi.org/10.1117/12.2520743

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available