TY - JOUR
T1 - Parity-time anti-symmetric parametric amplifier
AU - Antonosyan, Diana A.
AU - Solntsev, Alexander S.
AU - Sukhorukov, Andrey A.
N1 - Publisher Copyright:
© 2015 Optical Society of America.
PY - 2015/10/15
Y1 - 2015/10/15
N2 - 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 pumpcontrolled 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.
AB - 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 pumpcontrolled 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.
UR - http://www.scopus.com/inward/record.url?scp=84961178876&partnerID=8YFLogxK
U2 - 10.1364/OL.40.004575
DO - 10.1364/OL.40.004575
M3 - Article
SN - 0146-9592
VL - 40
SP - 4575
EP - 4578
JO - Optics Letters
JF - Optics Letters
IS - 20
ER -