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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 20 — Oct. 15, 2013
  • pp: 4193–4196

Deep UV-induced near-infrared photodarkening of Er/Yb-doped and undoped phosphate fibers

Lingyun Xiong, Peter Hofmann, Axel Schülzgen, Nasser Peyghambarian, and Jacques Albert  »View Author Affiliations

Optics Letters, Vol. 38, Issue 20, pp. 4193-4196 (2013)

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Photodarkening (PD) of Er/Yb-doped and undoped phosphate fibers caused by pulsed 193 nm irradiation from an ArF excimer laser to form Bragg grating mirrors is investigated. Doped and undoped phosphate fibers exhibit the same level of significant UV-induced PD loss, which is associated with the formation of a color center band at 467 nm. The UV-induced absorption extends into the NIR and creates a loss on the order of 1dB/cm across the C-band. Photo-bleaching by a high-power supercontinuum source, and thermal-bleaching processes are performed on photodarkened samples. Both bleaching processes are found effective to fully erase the UV-induced PD loss.

© 2013 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2290) Fiber optics and optical communications : Fiber materials
(140.3440) Lasers and laser optics : Laser-induced breakdown
(160.5690) Materials : Rare-earth-doped materials

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: June 5, 2013
Revised Manuscript: September 6, 2013
Manuscript Accepted: September 19, 2013
Published: October 14, 2013

Lingyun Xiong, Peter Hofmann, Axel Schülzgen, Nasser Peyghambarian, and Jacques Albert, "Deep UV-induced near-infrared photodarkening of Er/Yb-doped and undoped phosphate fibers," Opt. Lett. 38, 4193-4196 (2013)

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