论文信息 - A 2×2 spatial optical switch based on PT-symmetry.

A 2×2 spatial optical switch based on PT-symmetry.

We show a PT-symmetric coupler having an arm with a tunable gain and a no-loss arm when appropriately designed to possess reciprocal behavior, unlike its rivals having a fixed gain/loss arm, can perform as a tunable 2×2 spatial optical switch. The degree of the tunability equals the ratio of the coupler's length to the total coupling length.

[1] M. Segev,et al. Observation of parity–time symmetry in optics , 2010 .

[2] C. Bender,et al. Real Spectra in Non-Hermitian Hamiltonians Having PT Symmetry , 1997, physics/9712001.

[3] Z. Musslimani,et al. Theory of coupled optical PT-symmetric structures. , 2007, Optics letters.

[4] R. Morandotti,et al. Observation of PT-symmetry breaking in complex optical potentials. , 2009, Physical review letters.

[5] T. Lakoba,et al. Defect Solitons in Parity-time Periodic Potentials References and Links , 2022 .

[6] University of Central Florida,et al. Unidirectional nonlinear PT-symmetric optical structures , 2010, 1005.5189.

[7] Z. Musslimani,et al. Optical Solitons in PT Periodic Potentials , 2008 .

[8] C. Bender,et al. PT-symmetric quantum mechanics , 1998, 2312.17386.

[9] Z. Musslimani,et al. Beam dynamics in PT symmetric optical lattices. , 2008, Physical review letters.