Diode-pumped passively Q-switched Nd:YVO4 laser with a carbon nanotube saturable absorber

Passively Q-switched Nd:YAlO_3 nanosecond laser using MoS_2 as saturable absorber

“…Moreover, the transition-metal-ion-doped crystals as well as semiconductors require specific and expensive fabrication techniques. Compared with transition-metal-ion-doped materials and SESAMs, the third category of SAs, namely the newly discovered nanosheets materials like CNTs (carbon nanotubes [10,11]), graphene [12][13][14] and TIs (topological insulators like Bi 2 Se 3 and Bi 2 Te 3 [15][16][17]) now appear more and more attractive because of ultra-broadband saturable absorption, and relatively easy and low cost fabrication processes. TI-based SAs, more particularly, have attracted a lot of attention in the recent several years.…”

Tunable 2.0µm Q-switched fiber laser using a silver nanoparticle based saturable absorber

“…In addition, their small size and ruggedness allowed for the development of compact Q-switched fiber lasers that could operate in rough environments. Initial work focused on graphene and carbon-based materials as SAs, including carbon nanotubes [12][13][14][15], and quickly expanded to include transition-metal oxides (TMOs) such as titanium oxide (TiO 2 ), zinc oxide Laser Physics Tunable 2.0 µm Q-switched fiber laser using a silver nanoparticle based saturable absorber (ZnO) and iron oxide (Fe 3 O 4 ) [16][17][18], as well as transitionmetal dichalcogenides (TMDs) such as molybdenum disulfide (MoS 2 ) [19], molybdenum diselenide (MoSe 2 ) [20], tungsten disulfide (WS 2 ) [21] and tungsten diselenide (WSe 2 ) [22], topological insulators such as bismuth selenide (Bi 2 Se 3 ) [23] and even more exotic materials such as black phosphorus (BP) [24,25]. In this regard, recent advances have also revealed the potential of metals such as gold (Au) and silver (Ag) for application as SAs.…”

Study of Yb:YVO4 lasers end-pumped by a 985-nm diode laser

“…Continuous wave (CW) vis ible coherent radiation at 559 and 440 nm were dem onstrated very recently through intracavity nonlinear optical interactions in a self Raman and a quasi three level Nd:YVO 4 laser [1,2]; high power single frequency laser oscillation was achieved with either Nd:YVO 4 or composite Nd:YVO 4 /YVO 4 crystal in a ring resonator [3,4]; various passively Q switched Nd:YVO 4 lasers were developed by employing differ ent saturable absorbers like Cr 4+ :YAG, GaAs, and car bon nanotube material [5][6][7]; efficient passively mode locked laser operation was also realized with Nd:YVO 4 crystal by use of the SESAM technique [8,9]. Besides the use of host for the Nd ion, the crystal of YVO 4 also proves to be effective laser medium when doped with Er, or with Tm and Ho.…”