Ultrafast Airy beam optical parametric oscillator

摘要

We report on the first realization of an ultrafast Airy beam optical parametric oscillator (OPO). By introducing intracavity cubic phase modulation to the resonant Gaussian signal in a synchronously-pumped singly-resonant OPO cavity and its subsequent Fourier transformation, we have generated 2-dimensional Airy beam in the output signal across a 250?nm tuning range in the near-infrared. The generated Airy beam can be tuned continuously from 1477 to 1727?nm, providing an average power of as much as 306?mW at 1632?nm in pulses of ~23?ps duration with a spectral bandwidth of 1.7?nm.