Outcomes of internal rib fixation through complete video-assisted thoracoscopic surgery for multiple rib fractures and flail chest in severe chest trauma.

Background: Surgical stabilization of rib fractures (SSRF) is a standard treatment for multiple rib fractures and flail chest. The aim of this study is to evaluate the outcomes of internal rib fixation through complete video-assisted thoracoscopic surgery (VATS) for multiple rib fractures and flail chest in patients with severe chest trauma.

Methods: Thirty-nine patients with multiple rib fractures caused by severe chest trauma were divided into two groups according to the surgical approach used.

12.7 W intra-cavity pumped Ho:YAG laser with near-diffraction-limited beam quality.

We demonstrated a compact and efficient Ho:YAG slab laser intra-cavity pumped by a Tm:YLF slab laser for the first time. In the Tm:YLF laser operation, the maximum power of 32.1 W with optical-to-optical efficiency of 52.

High-efficiency Ho:YLF slab laser with 125 W continuous-wave output power.

We demonstrate a compact and efficient Ho:YLF slab laser that is pumped by a self-made Tm:YAP slab laser. The maximum output power of 125 W at 2064 nm was obtained with the incident pump power of 245 W. To the best of our knowledge, this is the first report for an Ho:YLF laser oscillator to reach hundred-watts-level output power.

254 W laser-diode dual-end-pumped Tm:YAP InnoSlab laser.

A compact laser-diode dual-end-pumped 3 at. % a-cut Tm:YAP InnoSlab laser with the output power of 254 W in 1.99 µm has been demonstrated.

25 mJ, 5 KHz, 3 ns, Nd:YAG discrete path slab amplifier using a hybrid resonator.

We report what we believe to be potential improved performance for a Nd:YAG discrete path slab amplifier configuration based on a hybrid resonator system. The amplifier is driven by a Q-switched 0.3 mJ nanosecond oscillator that generates an initial laser pulse at a repetition rate of 5 KHz and has beam quality of M<1.

8.4mJ, 10kHz, 3.6ns, Nd:YVO slab amplifier.

A diode-pumped nanosecond eight-pass amplifier with Nd:YVO crystal was developed. Combined with the advantages of direct pumped and Innoslab structure, a high energy pulse was obtained by using the wedged multi-folded configuration with two plane mirrors. The 0.

High-average-power and high-beam-quality Innoslab picosecond laser amplifier.

We demonstrated a laser-diode, end-pumped picosecond amplifier. With effective shaping of the seed laser, we achieved 73 W amplified laser output at the pump power of 255 W, and the optical-optical efficiency was about 28%. The beam propagation factors M(2) measured at the output power of 60 W in the horizontal direction and the vertical direction were 1.

Double-end-pumped Nd:YVO4 slab laser at 1064 nm.

We demonstrate a high-power laser diode stacks double-end-pumped Nd:YVO4 1064 nm slab laser with a folded stable-unstable hybrid resonator. An output power of 220 W was obtained at the pump power of 490 W with optical conversion efficiency of 44.9%.