Centre for Photonics and Photonic Materials, Department of Physics, University of Bath, Bath, BA2 7AY, UK.
Opt Lett. 2010 Jun 1;35(11):1875-7. doi: 10.1364/OL.35.001875.
We report on kagomé-lattice photonic microcells with low losses, large outer diameters, and large cores. The large (40-70microm) cores are accommodated by tapering the fibers and splicing the reduced ends to a single-mode fiber. We demonstrate the repeatability of this process and obtain splice losses of 0.6dB by optimizing the taper transition length. Narrow electromagnetically induced transparencies and saturable absorption are demonstrated in an acetylene-filled photonic microcell.
我们报告了具有低损耗、大外径和大芯区的 kagomé 晶格光子微腔。通过将光纤逐渐变细并将缩小的光纤末端熔接到单模光纤上，实现了大芯区（40-70μm）的容纳。我们通过优化锥形过渡长度，证明了该过程的可重复性，并获得了 0.6dB 的熔接损耗。在充满乙炔的光子微腔中，演示了窄电磁感应透明和可饱和吸收。
