Saturation of the Raman amplification by self-phase modulation in silicon nanowaveguides
Optics
2015-05-19 v1
Abstract
We experimentally show that the self-phase modulation of picosecond pump pulses, induced by both the optical Kerr effect and free-carrier refraction, has a detrimental effect on the maximum on-off Raman gain achievable in silicon on insulator nanowaveguides, causing it to saturate. A simple calculation of the Raman gain coefficient from the measured broadened output pump spectra perfectly matches the saturated behavior of the amplified Raman signal observed experimentally at different input pump powers.
Keywords
Cite
@article{arxiv.1005.5599,
title = {Saturation of the Raman amplification by self-phase modulation in silicon nanowaveguides},
author = {Felix Kroeger and Aleksandr Ryasnyanskiy and Alexandre Baron and Nicolas Dubreuil and Philippe Delaye and Robert Frey and Gérald Roosen and David Peyrade},
journal= {arXiv preprint arXiv:1005.5599},
year = {2015}
}
Comments
Accepted for publications in Applied Physics Letters