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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 18 — Sep. 9, 2013
  • pp: 20954–20963

About the role of phase matching between a coated microsphere and a tapered fiber: experimental study

Davor Ristić, Alphonse Rasoloniaina, Andrea Chiappini, Patrice Féron, Stefano Pelli, Gualtiero Nunzi Conti, Mile Ivanda, Giancarlo C. Righini, Gilles Cibiel, and Maurizio Ferrari  »View Author Affiliations


Optics Express, Vol. 21, Issue 18, pp. 20954-20963 (2013)
http://dx.doi.org/10.1364/OE.21.020954


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Abstract

Coatings of spherical optical microresonators are widely employed for different applications. Here the effect of the thickness of a homogeneous coating layer on the coupling of light from a tapered fiber to a coated microsphere has been studied. Spherical silica microresonators were coated using a 70SiO2 – 30HfO2 glass doped with 0.3 mol% Er3+ ions. The coupling of a 1480 nm pump laser inside the sphere has been assessed using a tapered optical fiber and observing the 1530-1580 nm Er3+ emission outcoupled to the same tapered fiber. The measurements were done for different coating thicknesses and compared with theoretical calculations to understand the relationship of the detected signal with the whispering gallery mode electric field profiles.

© 2013 OSA

OCIS Codes
(160.4760) Materials : Optical properties
(160.5690) Materials : Rare-earth-doped materials
(250.5230) Optoelectronics : Photoluminescence
(310.1860) Thin films : Deposition and fabrication
(140.3945) Lasers and laser optics : Microcavities

ToC Category:
Sensors

History
Original Manuscript: June 4, 2013
Revised Manuscript: July 8, 2013
Manuscript Accepted: July 9, 2013
Published: August 30, 2013

Citation
Davor Ristić, Alphonse Rasoloniaina, Andrea Chiappini, Patrice Féron, Stefano Pelli, Gualtiero Nunzi Conti, Mile Ivanda, Giancarlo C. Righini, Gilles Cibiel, and Maurizio Ferrari, "About the role of phase matching between a coated microsphere and a tapered fiber: experimental study," Opt. Express 21, 20954-20963 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-18-20954


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