Strong localization of whispering gallery modes in an optical fiber via asymmetric perturbation of the translation symmetry

Autor:	L.A. Kochkurov, Misha Sumetsky
Rok vydání:	2015
Předmět:	Physics Optical fiber Geodesic business.industry Physics::Optics Perturbation (astronomy) Slow light law.invention Optics law Whispering-gallery wave Photonics business Translational symmetry Nanoscopic scale
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.2084374
Popis:	Recently introduced Surface Nanoscale Axial Photonics (SNAP) is based on whispering gallery modes circulating around the optical FIber surface and undergoing slow axial propagation. In this paper we develop the theory of propagation of whispering gallery modes in a SNAP microresonator, which is formed by nanoscale asymmetric perturbation of the FIber translation symmetry and called here a nanobump microresonator. The considered modes are localized near a closed stable geodesic situated at the FIber surface. A simple condition for the stability of this geodesic corresponding to the appearance of a high Q-factor nanobump microresonator is found. The results obtained are important for engineering of SNAP devices and structures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e62b1d5d3de34531a3b075f84705d681 https://doi.org/10.1117/12.2084374 Zobrazit plný text záznamu