TY - GEN
T1 - Parity-time anti-symmetric parametric amplification
AU - Antonosyan, Diana A.
AU - Solntsev, Alexander S.
AU - Sukhorukov, Andrey A.
N1 - Publisher Copyright:
© 2015 SPIE.
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
KW - Parity-time symmetry
KW - nonlinear wave mixing
KW - optical parametric amplification
KW - waveguide coupler
UR - https://www.scopus.com/pages/publications/84951741649
U2 - 10.1117/12.2190266
DO - 10.1117/12.2190266
M3 - Conference Paper
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Active Photonic Materials VII
A2 - Foteinopoulou, Stavroula
A2 - Subramania, Ganapathi S.
PB - SPIE
T2 - Active Photonic Materials VII Conference
Y2 - 9 August 2015 through 13 August 2015
ER -