All-optical nanopositioning of high-Q silica microspheres

被引：8
|
作者：
Murphy, Rafino M. J. [1 ]
Lei, Fuchuan [1 ]
Ward, Jonathan M. [1 ]
Yang, Yong [1 ]
Chormaic, Sile Nic [1 ]
机构：
[1] Grad Univ, Okinawa Inst Sci & Technol, Light Matter Interact Unit, Onna, Okinawa 9040495, Japan
来源：
OPTICS EXPRESS | 2017年 / 25卷 / 12期
关键词：
MICROBUBBLE RESONATOR; FIBER TAPER; FABRICATION; SYSTEM; MICRORESONATOR;
D O I：
10.1364/OE.25.013101
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A tunable, all-optical, coupling method is realised for a high-Q silica microsphere and an optical waveguide. By means of a novel optical nanopositioning method, induced thermal expansion of an asymmetric microsphere stem for laser powers up to 211 mW is observed and used to fine tune the microsphere-waveginde coupling. Microcavity displacements ranging from (0.61 +/- 0.13) - (3.49 +/- 0.13) ym and nanometer scale sensitivities varying from (2.81 +/- 0.08) - (17.08 +/- 0.76) tina/mW, With an apparent linear dependency of coupling distance on stein laser heating, arc obtained. Using this method, the coupling is altered such that the different coupling regimes are achieved. (C) 2017 Optical Society of America
引用
收藏
页码：13101 / 13106
页数：6
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