title: Two-octave polarized supercontinuum generated from a Q-switched laser pumped doubly resonant parametric oscillator.
abstract: We report broadband polarized supercontinuum generated from a doubly resonant parametric oscillator with a lithium triborate gain crystal installed in a noncritical phase-matching condition. The parametric oscillator is pumped by a Q-switched frequency-doubled Nd:YAG laser at a repetition rate of 20 Hz, producing a polarized spectrum with a width more than 324 THz or a wavelength range between 0.6 and 1.7 μm. The laser output is further extended to the blue part of spectrum via temperature-tuned second-harmonic generation in the same crystal.
authors.affiliation: Department of Electrical Engineering, National Tsinghua University, Hsinchu 30013, Taiwan.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Hao
authors.forename: Yen-Chieh
authors.initials: YC
authors.lastname: Huang