Tunable erbium-doped microbubble laser fabricated by sol-gel coating.
Tunable erbium-doped microbubble laser fabricated by sol-gel coating.
复制标题
DOI：
10.1364/oe.25.001308
复制
发表时间：
2016-09
期刊：
影响因子：
3.8
通讯作者：
Yong Yang;F. Lei;S. Kasumie;Linhua Xu;J. Ward;Lan Yang;S. Nic Chormaic
中科院分区：
文献类型：
--
作者：
Yong Yang;F. Lei;S. Kasumie;Linhua Xu;J. Ward;Lan Yang;S. Nic Chormaic
在这项工作中，我们表明，溶胶-凝胶涂层的应用呈现成一个有源器件的微泡回音壁谐振器。在谐振腔的制作过程中，将掺铒溶胶-凝胶薄层涂在锥形毛细管上，然后将稀土离子扩散到微泡壁中，形成壁厚为1.3 μm的微泡。掺杂的微泡在980 nm处被泵浦，并且在1535 nm处的Er 3+离子的发射带中产生激光。利用微气泡回音壁模式的气压调谐，可以实现激光波长的漂移。在2巴的施加压力下观察到高达240 pm的调谐。我们还表明，掺杂的微泡可以用作一个紧凑的，可调谐的激光源。
In this work, we show that the application of a sol-gel coating renders a microbubble whispering gallery resonator into an active device. During the fabrication of the resonator, a thin layer of erbium-doped sol-gel is applied to a tapered microcapillary, then a microbubble with a wall thickness of 1.3 μm is formed with the rare earth ions diffused into its wall. The doped microbubble is pumped at 980 nm and lases in the emission band of the Er3+ ions at 1535 nm. The laser wavelength can be shifted by aerostatic pressure tuning of the whispering gallery modes of the microbubble. Up to 240 pm tuning is observed with 2 bar of applied pressure. We also show that the doped microbubble could be used as a compact, tunable laser source.