​Titanium Doped Sapphire (Ti:Sapphire) is the most widely used laser crystal for widely tunable and ultrashort pulsed lasers with high gain and power outputs. CRYSTRONG possesses the advanced growth method of Temperature Gradient Technique (TGT), and it supplies large-sized (Dia. 30×30 mm3) Ti:Sapphire crystal in high quality free of light scatter, with the dislocation density less than 102 cm-2. The TGT grown sapphire crystal is characterized by the [0001] oriented growth, high doping level (α490 = 4.0 cm-1), high gain and laser damage threshold.

Ytterbium Doped Yttrium Aluminum Garnet (Yb:Y3Al5O12, Yb:YAG) is one of the most promising laser-active materials and more suitable for diode-pumping than the traditional Nd-doped systems. Compared with the commonly used Nd:YAG crystal, Yb:YAG crystal has a much larger absorption bandwidth to reduce thermal management requirements for diode lasers, a longer upper-laser level lifetime, three to four times lower thermal loading per unit pump power. Yb:YAG crystal at 1030 nm is a good substitute for a Nd: YAG crystal at 1064 nm and its second harmonic at 515 nm may replace Ar-ion laser (with a large volume), which emit at 514 nm.

Neodymium Doped Yttrium Orthovanadate (Nd:YVO4) is the most efficient laser host crystal for diode pumping among the current commercial laser crystals, especially, for low to middle power density. This is mainly for its absorption and emission features surpassing Nd:YAG. Pumped by laser diodes, Nd:YVO4 crystal has been incorporated with high NLO coefficient crystals (LBO, BBO, or KTP) to frequency-shift the output from the near infrared to green, blue, or even UV. This incorporation to construct all solid state lasers is an ideal laser tool that can cover the most widespread applications of lasers, including machining, material processing, spectroscopy, wafer inspection, light displays, medical diagnostics, laser printing, and data storage, etc. It has been shown that Nd:YVO4 based diode pumped solid state lasers are rapidly occupying the markets traditionally dominated by water-cooled ion lasers and lamp-pumped lasers, especially when compact design and single-longitudinal-mode output are required.

is the laser crystal with the best comprehensive performance and the most important application, widely used in industrial, medical, military, and scientific research fields. It has high gain, low threshold, high efficiency, high optical quality, low loss, high mechanical strength, excellent thermal conductivity and thermal shock resistance. It is suitable for various laser operating modes (continuous, pulse, Q-switching, mode locking, frequency doubling, etc.) and high average power solid-state lasers.