Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
739174 | Optics & Laser Technology | 2015 | 4 Pages |
•A 2 µm all-fiber Q-switched laser based on the stress-induced birefringence was demonstrated.•A commercial Tm-doped silica fiber was proved to be capable of realizing stable Q-switched operation with this method.•The repetition rates can be tuned from 25 to 175 kHz with the shortest pulse duration of 413.2 ns.
An actively Q-switched all-fiber laser operating at the wavelength of 1920 nm is experimentally demonstrated based on a readily accessible commercial Tm-doped silica fiber. The Q-switching is achieved by polarization modulation through the stress-induced birefringence using a piezoelectric transducer (PZT) as the Q-switcher. The pulsed fiber laser can be operated with the repetition rates ranging from tens of kilohertz to nearly two hundreds kilohertz with milliwatt average output power.