Parity-time-symmetric coupled microring lasers operating around an exceptional point
arXiv:1509.06281 · doi:10.1364/OL.40.004955
Abstract
The behavior of a parity-time (PT) symmetric coupled microring system is studied when operating in the vicinity of an exceptional point. Using the abrupt phase transition around this point, stable single-mode lasing is demonstrated in spectrally multi-moded micro-ring arrangements.
5 pages, 6 figures
References in corpus (5)
- Nonreciprocal light transmission in parity-time-symmetric whispering-gallery microcavities
- Loss-induced suppression and revival of lasing
- PT-symmetry breaking and laser-absorber modes in optical scattering systems
- Visualization of Branch Points in PT-Symmetric Waveguides
- Reversing the Pump-Dependence of a Laser at an Exceptional Point