Abstract

A method of precise characterization of surface nanoscale axial photonics (SNAP) structures with a reference fiber is proposed, analyzed, and demonstrated experimentally. The method is based on simultaneous coupling of a microfiber to a SNAP structure under test and to a reference optical fiber. Significant reduction of measurement errors associated with the environmental temperature variations and technical noise of the spectrum analyzer is demonstrated. The achieved measurement precision of the effective radius variation of the SNAP structure is 0.2 Å.

© 2016 Optical Society of America

SNAP microresonators introduced by strong bending of optical fibers

Daria Bochek, Nikita Toropov, Ilya Vatnik, Dmitry Churkin, and Misha Sumetsky
Opt. Lett. 44(13) 3218-3221 (2019)

Fabrication of surface nanoscale axial photonics structures with a femtosecond laser

Fangcheng Shen, Xuewen Shu, Lin Zhang, and M. Sumetsky
Opt. Lett. 41(12) 2795-2798 (2016)

Permanent matching of coupled optical bottle resonators with better than 0.16  GHz precision

N. A. Toropov and M. Sumetsky
Opt. Lett. 41(10) 2278-2281 (2016)

Tunable SNAP microresonators via internal ohmic heating

Dashiell L. P. Vitullo, Sajid Zaki, Gabriella Gardosi, Brian J. Mangan, Robert S. Windeler, Michael Brodsky, and Misha Sumetsky
Opt. Lett. 43(17) 4316-4319 (2018)

Efficient postprocessing technique for fabricating surface nanoscale axial photonics microresonators with subangstrom precision by femtosecond laser

Qi Yu, Yueqing Du, Zuowei Xu, Peng Wang, Zhen Zhang, Zece Zhu, Haoran Cao, Michael Sumetsky, and Xuewen Shu
Opt. Lett. 43(23) 5729-5732 (2018)