ABSTRACT
The interest of all-fiber lasers is stimulated by the inherent advantages they have over bulk lasers in aspects such as heat dissipation and robustness. This chapter describes a Q-switched distributed feedback fiber (QS-DFB) all-fiber laser that uses a novel in-line acoustic pulse generator. It discusses the use of this DFB all-fiber laser as a compact light source for Brillouin sensing applications. The chapter describes a continuous-wave mode-locking (CW-ML) all-fiber laser. It also reviews the acoustooptic superlattice modulator (AOSLM), since this mechanism was used to actively mode-lock the laser. The chapter describes two different all-fiber mode-locked lasers by driving the AOSLM by either standing or traveling acoustic waves. It describes two different mechanisms, to actively Q-switch and mode-lock simultaneously an all-fiber laser. Brillouin scattering essentially refers to the scattering of a light wave by an acoustic wave. The Brillouin spectrum was registered with an optical spectral analyzer.
