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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 10 — May. 7, 2012
  • pp: 10684–10691

Photo-induced SNAP: fabrication, trimming, and tuning of microresonator chains

M. Sumetsky, D. J. DiGiovanni, Y. Dulashko, X. Liu, E. M. Monberg, and T. F. Taunay  »View Author Affiliations

Optics Express, Vol. 20, Issue 10, pp. 10684-10691 (2012)

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We introduce multiple series of uncoupled and coupled surface nanoscale axial photonics (SNAP) microresonators along the 30 micron diameter germanium-doped photosensitive silica optical fiber and demonstrate their permanent trimming and temporary tuning with a CO2 laser and a wire heater. Hydrogen loading allows us to increase the introduced variation of the effective fiber radius by an order of magnitude compared to the unloaded case, i.e., to around 5 nm. It is demonstrated that the CO2 laser annealing of the fabricated microresonator chain can be used to modify the fiber radius variation. Depending on the CO2 laser beam power, the microresonator effective radius variation can be increased in depth up to the factor of two or completely erased. In addition, we demonstrate temporary tuning of a microresonator chain with a wire heater.

© 2012 OSA

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(230.3990) Optical devices : Micro-optical devices
(140.3945) Lasers and laser optics : Microcavities

ToC Category:
Optical Devices

Original Manuscript: March 8, 2012
Revised Manuscript: April 12, 2012
Manuscript Accepted: April 13, 2012
Published: April 24, 2012

M. Sumetsky, D. J. DiGiovanni, Y. Dulashko, X. Liu, E. M. Monberg, and T. F. Taunay, "Photo-induced SNAP: fabrication, trimming, and tuning of microresonator chains," Opt. Express 20, 10684-10691 (2012)

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