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Proceedings Paper

Cladding modes fiber coupling to silica micro-resonators based on long period gratings
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Paper Abstract

A novel method based on long period fiber gratings (LPGs) for coupling light to high-Q silica whispering gallery mode (WGM) resonators is presented. An LPG couples the fundamental mode of a fiber to higher order LP cladding modes at selected frequencies. At an adiabatically tapered section of the fiber following the LPG we demonstrated effective coupling of these cladding modes to WGMs both in silica microspheres and microbubbles. The taper is about one order of magnitude thicker than standard tapers used for the same purpose. Therefore this new method offers improved robustness for practical applications.

Paper Details

Date Published: 3 March 2015
PDF: 6 pages
Proc. SPIE 9343, Laser Resonators, Microresonators, and Beam Control XVII, 934318 (3 March 2015); doi: 10.1117/12.2080360
Show Author Affiliations
Daniele Farnesi, Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi (Italy)
F. Chiavaioli, Istituto di Fisica Applicata Nello Carrara (Italy)
F. Cosi, Istituto di Fisica Applicata Nello Carrara (Italy)
G. C. Righini, Ctr. Studi e Ricerche “Enrico Fermi” (Italy)
Istituto di Fisica Applicata Nello Carrara (Italy)
S. Soria, Istituto di Fisica Applicata Nello Carrara (Italy)
C. Trono, Istituto di Fisica Applicata Nello Carrara (Italy)
G. Nunzi Conti, Istituto di Fisica Applicata Nello Carrara (Italy)


Published in SPIE Proceedings Vol. 9343:
Laser Resonators, Microresonators, and Beam Control XVII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio, Editor(s)

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