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Room temperature CW fibre laser at 3.22 µm

Room temperature CW fibre laser at 3.22 µm

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A new fibre laser emission wavelength > 3 µm is reported. For the first time a Ho3+ doped fluorozirconate fibre pumped at 532 nm shows room temperature CW laser operation ~3.22 µm, with output power = 11 mW and slope efficiency = 2.8%. Fluorescence was observed between 3.12 and 3.41 µm.

Inspec keywords: barium compounds; aluminium compounds; fibre lasers; sodium compounds; zirconium compounds; laser transitions; holmium; lanthanum compounds

Other keywords: 3.12 to 3.41 micron; ZBLAN:Ho; ZBLAN fibre; fibre laser emission wavelength; room temperature CW operation; ZrF4-BaF2-LaF3-AlF3-NaF:Ho; 3.22 micron; 532 nm; 11 mW; Ho3+ doped fluorozirconate fibre

Subjects: Design of specific laser systems; Fibre lasers and amplifiers; Fibre lasers and amplifiers

References

    1. 1)
      • J. Schneider . Fluoride fibre laser operating at 3.9 µm. Electron. Lett. , 1250 - 1251
    2. 2)
      • H. Többen . Temperature-tunable 3.5 µm fibre laser. Electron. Lett. , 667 - 669
    3. 3)
      • H. Többen . CW-lasing at 3.45 µm in erbium-doped fluorozirconate fibres. Frequenz , 250 - 252
    4. 4)
      • D.W. Hewak , B.N. Samson , J.A.M. Neto , R.I. Laming , D.N. Payne . Emission at 1.3 µm from dysprosium-doped Ga:La:S glass. Electron. Lett. , 968 - 970
    5. 5)
      • J. Schneider , C. Carbonnier , U.B. Unrau . Characterization of a Ho3+-doped fluoride fibre laser with a 3.9 µm emission wavelength. Appl. Opt. , 8595 - 8600
    6. 6)
      • L. Wetenkamp , G.F. West , H. Többen . Optical properties of rare earth-doped ZBLAN glasses. J. Non-Cryst. Solids
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