Gain and saturation intensity of the green Ho: ZBLAN upconversion fiber amplifier and laser

E. B. Mejia, A. A. Senin, J. M. Talmadge, J. G. Eden

Research output: Contribution to journalArticlepeer-review

Abstract

The gain and saturation intensity of the green Ho-doped fluorozirconate (ZBLAN) glass fiber amplifier and laser, pumped in the red (643 ≤ λ p ≤ 649 nm; 5F 55I 8), have been measured. For a 2.4-μm core diameter fiber 45 cm in length, the single-pass gain at 543.4 nm exceeds 12 dB for 90 mW of pump power at 643.5 nm. The saturation power for the 5F 4, 5S 25I 8 lasing transition was determined from gain measurements to be 970 ± 175 μW, which corresponds to a saturation intensity of 19.8 ± 3.5 kW · cm -2, and a stimulated emission cross section approximately one order of magnitude larger than theoretical estimates.

Original languageEnglish (US)
Pages (from-to)1500-1502
Number of pages3
JournalIEEE Photonics Technology Letters
Volume14
Issue number11
DOIs
StatePublished - Nov 2002

Keywords

  • Fiber amplifier
  • Fiber laser
  • Gain saturation
  • Optical amplifier
  • Saturation intensity
  • Visible laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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