, APL Photonics, vol.3, issue.3, p.30901, 2018.
, IEEE J. of Select. Topics in Quantum Electron, vol.22, issue.6, p.1800107, 2016.
, Applied Physics Letters, vol.111, issue.12, p.122107, 2017.
, AIP Advances, vol.6, issue.6, p.125114, 2016.
, Optics Express, vol.25, issue.9, pp.9535-9543, 2017.