Cutting effects induced by 2 μm laser radiation of cw Tm:YLF and cw and Q-switched Ho:YAG lasers on ex-vivo tissue

A resonantly-pumped tunable Q-switched Ho:YAG ceramic laser with diffraction-limit beam quality

“…High-energy Q-switched lasers with eye-safe wavelengths around 2 μm are widely used in fields of medicine, coherent Doppler Lidar, differential absorption Lidar, etc [1][2][3]. Moreover, high-energy 2 μm lasers are attractive candidates for pumping mid-infrared optical parametric oscillator to generate 3~5 μm lasers [4,5].…”

Chitosan capped nickel oxide nanoparticles as a saturable absorber in a tunable passively Q-switched erbium doped fiber laser

“…3,4 Additionally, Q-switched ber lasers also do not require delicate adjustment and balancing of the dispersion and nonlinearity within the laser cavity as is usually the case with mode-locked ber lasers, thus giving them an added advantage. 5 These highly desirable traits have thus seen the integration of Q-switched ber lasers into a multitude of real world applications such as range nding, 6 medicine, 7 micromachining, 8 ber optic sensing 9 and telecommunications. 10 Q-switched pulses are typically generated through the use of a saturable absorber (SA), which modulates a continuous wave (CW) output into a periodic pulse train.…”

Investigation of high-power diode-end-pumped Tm:YLF laser in slab geometry

“…Solid-state lasers emitting around 2 μm have various important applications in the fields of remote sensing, laser radar, and medicine [1]. The Tm lasers emitting at 1908 nm were demonstrated as an excellent pumping source of Ho lasers [2].…”