Research Center for Advanced Photon Technology, Toyota Technological Institute, Nagoya, Japan.
Opt Lett. 2013 Jul 15;38(14):2566-8. doi: 10.1364/OL.38.002566.
We demonstrate third-harmonic generation (THG) in an elliptical-core ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) fluoride fiber, for the first time to our best knowledge. Linearly polarized THG around 523 nm is obtained when pumped by a pulse laser at 1560 nm. The extinction ratios of average power and peak power are ~6.7 and ~6.8 dB, respectively, in a 10 m long fiber. The extinction ratios are improved to ~11.1 and ~12.6 dB, respectively, when the fiber length is cut to 35 cm. Tunable THG from 605 to 740 nm is observed when pumped by an optical parametric oscillator with the pump wavelength changed from 1800 to 2200 nm.
我们首次在椭圆芯 ZrF4-BaF2-LaF3-AlF3-NaF（ZBLAN）氟化物光纤中演示了三次谐波产生（THG）。当用 1560nm 的脉冲激光泵浦时，可获得约 523nm 的线偏振 THG。在 10m 长的光纤中，平均功率和峰值功率的消光比分别约为 6.7 和 6.8dB。当光纤长度缩短至 35cm 时，消光比分别提高至约 11.1 和 12.6dB。当用波长从 1800nm 到 2200nm 的光参量振荡器泵浦时，可观察到从 605nm 到 740nm 的可调谐 THG。
