Tunable passively Q-switched ultranarrow linewidth erbium-doped fiber laser

Passively Q-Switched Ytterbium- and Chromium-doped All-Fiber Laser

Theoretical Analysis of a Passively Q-switched Erbium Doped

In this paper preliminary results obtained in numerical simulation of various aspects regarding passively Q-switched high power Er fiber lasers are presented. The developed numerical analysis has the aim of a better understanding of high power fiber laser pointing to their possible applications in sensing and telecommunications. The numerical simulations are performed for passive Q-switches cel...

Passively Q-switched erbium-doped fiber laser using evanescent field interaction with gold-nanosphere based saturable absorber.

We demonstrate an all-fiber passively Q-switched erbium-doped fiber laser (EDFL) using a gold-nanosphere (GNS) based saturable absorber (SA) with evanescent field interaction. Using the interaction of evanescent field for fabricating SAs, long nonlinear interaction length of evanescent wave and GNSs can be achieved. The GNSs are synthesized from mixing solution of chloroauricacid (HAuCl4) and s...

Hybrid Q-switched Yb-doped fiber laser.

We investigate the performance of a hybrid Q-switched (HQS) fiber laser that is constructed with a low RF-power driven acousto-optic (AO) Q-switch and an AlGaInAs semiconductor saturable absorber. Compared to a pure passively Q-switched (PQS) fiber laser, the ratio of timing jitter to pulse period can be significantly reduced from 2% to 0.3% in the regime of far above threshold. On the other ha...

Compact diode-pumped passively Q-switched tunable Er-Yb double-clad fiber laser.

Efficient repetitive passive Q switching of a cladding-pumped Er-Yb fiber laser has been demonstrated by use of an external-cavity configuration containing a Co(2+): ZnS crystal as a saturable absorber. Energies of as much as 60muJ in pulses of durations as short as 3.5 ns (FWHM), corresponding to a peak power of >10kW, have been generated, and the maximum slope efficiency with respect to the a...