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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 6 — Mar. 12, 2012
  • pp: 6677–6684

Delivery of high energy Er:YAG pulsed laser light at 2.94µm through a silica hollow core photonic crystal fibre

A. Urich, R. R. J. Maier, B. J. Mangan, S. Renshaw, J. C. Knight, D. P. Hand, and J. D. Shephard  »View Author Affiliations


Optics Express, Vol. 20, Issue 6, pp. 6677-6684 (2012)
http://dx.doi.org/10.1364/OE.20.006677


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Abstract

In this paper the delivery of high power Er:YAG laser pulses through a silica hollow core photonic crystal fibre is demonstrated. The Er:YAG wavelength of 2.94 µm is well beyond the normal transmittance of bulk silica but the unique hollow core guidance allows silica to guide in this regime. We have demonstrated for the first time the ability to deliver high energy pulses through an all-silica fibre at 2.94 µm. These silica fibres are mechanically and chemically robust, biocompatible and have low sensitivity to bending. A maximum pulse energy of 14 mJ at 2.94 µm was delivered through the fibre. This, to our knowledge, is the first time a silica hollow core photonic crystal fibre has been shown to transmit 2.94 μm laser light at a fluence exceeding the thresholds required for modification (e.g. cutting and drilling) of hard biological tissue. Consequently, laser delivery systems based on these fibres have the potential for the realization of novel, minimally-invasive surgical procedures.

© 2012 OSA

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(170.1020) Medical optics and biotechnology : Ablation of tissue
(060.4005) Fiber optics and optical communications : Microstructured fibers
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 23, 2011
Revised Manuscript: February 17, 2012
Manuscript Accepted: February 20, 2012
Published: March 7, 2012

Virtual Issues
Vol. 7, Iss. 5 Virtual Journal for Biomedical Optics

Citation
A. Urich, R. R. J. Maier, B. J. Mangan, S. Renshaw, J. C. Knight, D. P. Hand, and J. D. Shephard, "Delivery of high energy Er:YAG pulsed laser light at 2.94µm through a silica hollow core photonic crystal fibre," Opt. Express 20, 6677-6684 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-6-6677


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