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Optics Letters

Optics Letters


  • Vol. 21, Iss. 5 — Mar. 1, 1996
  • pp: 348–350

Photodegradation of near-infrared-pumped Tm3+-doped ZBLAN fiber upconversion lasers

Ian J. Booth, Jean-Luc Archambault, and Brian F. Ventrudo  »View Author Affiliations

Optics Letters, Vol. 21, Issue 5, pp. 348-350 (1996)

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Photodegradation has been observed in Tm3+-doped ZBLAN fiber lasers pumped with laser diodes at 1135 nm. After upconversion lasing at 482 nm, the fiber develops color centers that absorb strongly at wavelengths below ~650 nm, affecting further upconversion lasing. The rate of damage formation is strongly dependent on the pump power level and on the thulium concentration. The color centers are bleached by intense blue light but recover with thermal excitation and can be removed by thermal annealing at temperature near 100 °C.

© 1996 Optical Society of America

Original Manuscript: July 21, 1995
Published: March 1, 1996

Ian J. Booth, Jean-Luc Archambault, and Brian F. Ventrudo, "Photodegradation of near-infrared-pumped Tm3+-doped ZBLAN fiber upconversion lasers," Opt. Lett. 21, 348-350 (1996)

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