Mirrorless optical parametric oscillator inside an all-optical waveguide
Abstract
Mirrorless optical parametric oscillator (MOPO) is a consequence of intrinsic feedback provided by the nonlinearity in a medium due to the interaction of a pair of strong counter-propagating fields. As the name suggests, the device doesn't require a cavity for lasing other than the nonlinear medium. Here, we report the first demonstration of MOPO under the effect of an all-optical waveguide. The efficient four-wave mixing process due to counter-propagating pump and control fields interacting with a multilevel atomic system facilitates the generation of mirrorless Stokes and anti-Stokes fields counter-propagating to each other. The maximum generated laser power could rise up to mW with pump conversion efficiency more than 30%. Furthermore, the cross-phase modulation due to the strong Gaussian beams create all-optical waveguides for the generated fields and hence induces different spatial modes in the Stokes as well as the anti-Stokes fields. With suitable experimental parameters, we could generate correlated Gaussian mode or Laguerre-Gaussian mode for both the generated fields.
Cite
@article{arxiv.1804.04887,
title = {Mirrorless optical parametric oscillator inside an all-optical waveguide},
author = {Sushree S Sahoo and Snigdha S Pati and Ashok K mohapatra},
journal= {arXiv preprint arXiv:1804.04887},
year = {2019}
}