Yang Yong, Ooka Yuta, Thompson Ruth M, Ward Jonathan M, Chormaic Síle Nic
Opt Lett. 2016 Feb 1;41(3):575-8. doi: 10.1364/OL.41.000575.
A hollow, bottle-like microresonator (BLMR) was fabricated from a microcapillary with a nearly parabolic profile. From simulations at 1.55 μm the fundamental bottle mode is shown to be in the anomalous dispersion regime, while the conventional whispering gallery mode, confined to the center of the BLMR, is in the normal dispersion regime. Therefore, we have experimentally shown that, for a BLMR with a diameter of 102 um, degenerate four-wave mixing can only be observed by judicious selection of the tapered fiber coupling position. Dispersion tuning in such a system is also briefly discussed theoretically. BLMRs are promising devices for the implementation of sparsely distributed, widely spanned frequency combs at the telecommunications C-band.
一种空心瓶状微谐振器（BLMR）由具有近似抛物线轮廓的微毛细管制成。通过在1.55μm处的模拟表明，基本瓶模处于反常色散区域，而局限于BLMR中心的传统回音壁模处于正常色散区域。因此，我们通过实验表明，对于直径为102μm的BLMR，只有通过明智地选择锥形光纤耦合位置才能观察到简并四波混频。还从理论上简要讨论了这种系统中的色散调谐。BLMR是在电信C波段实现稀疏分布、宽跨度频率梳的有前途的器件。
