Passively Q-switched Er:YAP laser generating 21 ns pulses at 2.9 μm

A passively Q-switched Ho:YVO4 Laser at 2.05 μm with Graphene Saturable Absorber

We report a passively Q-switched Ho:YVO4 laser pumped at 1.94 μm with multilayer graphene as a saturable absorber. At the absorbed pump power of 9.3 W, the maximum average output power of 2.2 W was obtained in Ho:YVO4 laser with minimum pulse width of 265.2 ns and pulse repetition rate of 131.6 kHz at 2052.1 nm. In addition, a beam quality factor of M2~1.7 was measured at the maximum output lev...

Passively Q-switched Nd:YAG/KTA laser at 561 nm

Semiconductor saturable absorber mirror passively Q-switched 2.97 μm fluoride fiber laser

A diode-cladding-pumped mid-infrared passively Q-switched Ho-doped fluoride fiber laser using a reverse designed broad band semiconductor saturable mirror (SESAM) was demonstrated. Nonlinear reflectivity of the SESAM was measured using an in-house Yb-doped mode-locked fiber laser at 1062 nm. Stable pulse train was produced at a slope efficient of 12.1% with respect to the launched pump power. M...

Passively Q-Switched Microchip Lasers Enable Ultrashort Pulses

high-peak-power subnanosecond pulses. No need for cumbersome high-voltage controllers or even a water cooling system. Passively Q-switched microchip technology for industrial lasers covers the range of hundreds of picoseconds down to 300 ps in the offerings of Teem Photonics. Peak powers in excess of 200 kW are readily available at 1 kHz using PowerChip microchip cavities, and a 50-kHz repetiti...

Phase locking of nanosecond pulses in a passively Q-switched two-element fiber laser array

Phase locking of Brillouin backscattering Q-switched laser pulses that are much shorter than the round-trip time of the resonators has been demonstrated in a two-element fiber laser array. Despite the stochastic dynamics of nonlinear pulse generation, simultaneous generation and phase locking of short pulses have been achieved by using diffractive coupling and spatial filtering in an external r...