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arXiv · 1506.02143

Parity-Time Anti-Symmetric Parametric Amplifier

Diana A. Antonosyan·Alexander S. Solntsev·Andrey A. Sukhorukov
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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.

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Diana A. Antonosyan, Alexander S. Solntsev, Andrey A. Sukhorukov. 2015-06-06. Parity-Time Anti-Symmetric Parametric Amplifier. https://doi.org/10.1364/ol.40.004575

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