Optical push broom in a silicon waveguide

Publikationstyp
Conference Paper
Date Issued
2020-03
Sprache
English
Author(s)
Gaafar, Mahmoud Abdelaziz
Li, He
Cai, Xinlun
Li, Juntao
Eich, Manfred
Petrov, Alexander
Institut
Optische und Elektronische Materialien E-12
TORE-URI
http://hdl.handle.net/11420/8025
First published in
Proceedings of SPIE
Number in series
11358
Article Number
113580D
Citation
SPIE Photonics Europe 2020
Contribution to Conference
SPIE Photonics Europe 2020
Publisher DOI
10.1117/12.2555758
Scopus ID
2-s2.0-85096355356
ISBN of container
978-1-5106-3489-3
978-1-5106-3488-6
We report on light trapping by a moving refractive index front inside a silicon waveguide, the so-called optical push broom effect. The front generated by a fast pump pulse collects and traps the energy of a signal wave with smaller group velocity tuned near to the band gap of the waveguide with hyperbolic dispersion. The energy of the signal wave is accumulated inside the front and distributed in frequency. The presented effect can be utilized to compress signals in time and space.
Subjects
Dynamic manipulation of light
Front induced transition
Nonlinear photonics
Optical push broom effect
Silicon waveguides
DDC Class
600: Technology