343nm UV Laser generated by frequency-tripling (third-harmonic generation) an infrared 1030nm Laser

BeamQ 343nm UV Q-switched Laser Diode Solid State Laser 1-5W Pulsed Laser

343 nm UV  Q-switched Solid State Laser 1-5W . 343nm UV Q-switched Laser Diode Solid State Laser 1-5W Pulsed Laser

Femtosecond pulsed laser at 343nm is made features of short pulse duration, high repetition rate, high average power and good beam quality, which is used in sapphire marking, ceramic cutting, semiconductor cutting, film scribing, physics experiment, etc

alphalas Advanced Diode-Pumped Solid-State (DPSS) Lasers. Made in Germany

343nm laser Modelocked & Q-Switched

Modelocked DPSSL (100 fs – 100 ps)
Q-Switched DPSSL (Actively & Passively Q-Switched, Microchip, <1 ns, >1 mJ)

CNI 343 nm UV Solid State Laser Q-switched and Picosecond

Passively Q-switched UV Laser & Picosecond Pulsed UV Laser
Pulse width<10ps
Pulse width 10-900ps fixed
Pulse Width 0.5-50ns optional

lightcon CARBIDE 343nm femtosecond lasers combine high average power and excellent power stability.

Maximum output of 120 W (IR) or 50 W (UV)
Single-shot – 10 MHz repetition rate
Tunable pulse duration, 190 fs – 20 ps
Pulse-on-demand and BiBurst for pulse control

Principle of Generating 343 nm Ultraviolet Laser from 1030 nm (Third Harmonic Generation (THG), Cascaded Sum-Frequency Scheme)

Step 1: Second Harmonic Generation (SHG) (First Nonlinear Crystal LBO/BBO)

Two 1030 nm photons annihilate, generating one 515 nm green photon:
Incident: 1030 nm; Output Mixed Beam: Residual 1030 nm + Newly Generated 515 nm

Step 2: Sum-Frequency Generation to Generate 343 nm THG (Second Nonlinear Crystal)

One 1030 nm photon + one 515 nm photon simultaneously annihilate, generating one 343 nm ultraviolet photon:

Commercial 343 nm lasers are all generated by first frequency doubling and then sum-frequency generation (two-stage crystal);

Distinguishing from 355 nm: 1064 nm fundamental frequency → 532 → 355 nm; 1030 nm → 515 → 343 nm, two similar sets but with different wavelengths;