Parity-Time Anti-Symmetric Parametric Amplifier
Optics
2015-10-08 v1
Abstract
We describe the process of parametric amplification in a directional coupler of quadratically nonlinear and lossy waveguides, which belong to a class of optical systems with spatial parity-time (PT) symmetry in the linear regime. We identify a distinct spectral parity-time anti-symmetry associated with optical parametric interactions, and show that pump-controlled symmetry breaking can facilitate spectrally selective mode amplification in analogy with PT lasers. We also establish a connection between breaking of spectral and spatial mode symmetries, revealing the potential to implement unconventional regimes of spatial light switching through ultrafast control of PT breaking by pump pulses.
Cite
@article{arxiv.1506.02143,
title = {Parity-Time Anti-Symmetric Parametric Amplifier},
author = {Diana A. Antonosyan and Alexander S. Solntsev and Andrey A. Sukhorukov},
journal= {arXiv preprint arXiv:1506.02143},
year = {2015}
}
Comments
5 pages, 5 figures