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Parity-time anti-symmetric parametric amplifier

Antonosyan, Diana A ; Solntsev, Alexander S ; Sukhorukov, Andrey A

Optics letters, 2015-10, Vol.40 (20), p.4575-4578 [Periódico revisado por pares]

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Título:
Parity-time anti-symmetric parametric amplifier
Autor: Antonosyan, Diana A ; Solntsev, Alexander S ; Sukhorukov, Andrey A
Assuntos: Amplification ; Breaking ; Broken symmetry ; Joints ; Lasers ; Pumps ; Spectra ; Symmetry
É parte de: Optics letters, 2015-10, Vol.40 (20), p.4575-4578
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: We describe the process of parametric amplification in a directional coupler of quadratically nonlinear and lossy waveguides, which belongs to a class of optical systems with spatial parity-time (PT) symmetry in the linear regime. We identify a distinct spectral PT anti-symmetry associated with optical parametric interaction, and show that pump-controlled symmetry breaking can facilitate spectrally selective mode amplification in analogy with PT lasers. We also establish a connection between the 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.
Editor: United States
Idioma: Inglês

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