Widely tunable Q-switched dual-wavelength synchronous-pulsed Tm-doped fiber laser emitting in the 2 μm region | Zendy

Mostafa Sabra | Zendy; Baptiste Leconte | Zendy; Romain Dauliat | Zendy; Dia Darwich | Zendy; Tobias Tieß | Zendy; Anka Schwuchow | Zendy; Raphaël Jamier | Zendy; Georges Humbert | Zendy; Katrin Wondraczek | Zendy; Matthias Jäger | Zendy; Philippe Roy | Zendy

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Widely tunable Q-switched dual-wavelength synchronous-pulsed Tm-doped fiber laser emitting in the 2 μm region

Author(s) -

Mostafa Sabra,

Baptiste Leconte,

Romain Dauliat,

Dia Darwich,

Tobias Tieß,

Anka Schwuchow,

Raphaël Jamier,

Georges Humbert,

Katrin Wondraczek,

Matthias Jäger,

Philippe Roy

Publication year - 2019

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.44.004690

Subject(s) - materials science , optics , fiber laser , pulse duration , fiber bragg grating , laser , wavelength , pulse width modulation , optoelectronics , power (physics) , physics , quantum mechanics

We demonstrate a widely tunable Q-switched dual-wavelength fiber laser emitting synchronized pulses in the 2 μm spectral range. Owing to the use of a Tm-doped rod-type fully aperiodic large pitch fiber, together with an acousto-optic modulator and two volume Bragg gratings (VBGs), the wavelength separation was shown to be continuously tunable from 1 to 120 nm (∼0.1-10 THz). A peak power higher than 8 kW was demonstrated over the whole tuning range for a repetition rate (RR) of 1 KHz and a 26 ns pulse duration. The RR was modulated from 1 to 30 kHz, and the laser pulse duration measured between 23 ns and 130 ns, depending on the RR and the wavelength separation.

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