1. Wavelength-Tuning of Nanosecond Pulses in Er-Doped Fluoride Fibre Amplifier
- Author
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Paulami Ray, Amit Yadav, Solenn Cozic, Franck Joulain, Thibaud Berthelot, Ulf Hinze, Samuel Poulain, Edik U. Rafailov, and Nikolai B. Chichkov
- Subjects
Fibre laser ,Nanosecond ,Erbium ,Mid-infrared ,ZBLAN ,Fluoride fibre ,Applied optics. Photonics ,TA1501-1820 ,Optics. Light ,QC350-467 - Abstract
We investigate the gain bandwidth and wavelength-tuning range of an erbium-doped fluoride fibre amplifier. The presented experimental setup consisted of a widely wavelength-tunable optical parametric oscillator (OPO), which was amplified in a single-stage Er-doped fluoride fibre amplifier. The OPO laser provided seed pulses with a pulse width of 5.2 ns and a repetition rate of 10 kHz. The fibre section consisted of 2.2 m of double-clad, single-mode fibre with a doping concentration of 7 mol%. Wavelength-tuning was analysed at gain values of up to 26 dB and amplified pulse energies of up to 37.4 $\mu \mathrm{J}$. Using this setup, we demonstrate continuous wavelength tuning of more than 100 nm, covering the wavelength range from 2712 nm to 2818 nm.
- Published
- 2022
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