Tunable high-peak-power, high-energy hybrid Q-switched double-clad fiber laser

High-energy, tunable-wavelengths, Q-switched pulse laser

“…In the early days, researchers typically used a volume diffraction grating [1], a bulk tunable filter [2][3][4] or an F-P filter [5,6] as a wavelength selection device. Fan et al have demonstrated a hybrid Q-switched laser with a tunable wavelength range from 1080.8 to 1142.7 nm by using a Yb-doped double-clad fiber as the gain material and a volume diffraction grating to realize wavelength tuning [1]. Popa et al have used a bulk tunable filter to obtain a Q-switched fiber laser with a pulse tunable between 1522 and 1555 nm [2].…”

Multi-lobed double-clad Erbium-Ytterbium co-doped Q-switched fiber laser based on nonlinear polarisation rotation technique

“…[1][2][3] Compared to CW fiber lasers, high-peak-power Q-switched fiber lasers are practically useful in numerous applications, such as range finding, fiber sensing, industrial processing, communication and medicine. 4,5 Active Q-switching is typically achieved by inserting a modulator or an ultrafast silicon-based variable optical attenuator into the cavity. 6 On the other hand, passive Q-switching is attained by employing saturable absorbers (SAs).…”

Analytical model for the design of external-cavity passively Q-switched fiber lasers

“…In recent years, high-peak-power Q-switched fiber lasers have attracted a great deal of attention because they are practically useful in numerous applications, such as range finding, remote sensing, industrial processing, and medicine [3][4][5][6]. Among various Q-switching methods, the passive Q-switching technique by means of saturable absorbers is particularly interesting from both a fundamental and a technological point of view.…”