Ti:Sapphire crystals

March 19, 2020

Main features
- Excellent thermal conductivity
- Broad gain bandwidth
- Wide range of possible pump wavelengths (typically 532 nm)
- Custom crystals available upon request

Application examples
- Mode-locked lasers with ultrashort pulses
- Multi-pass amplifiers and regenerative amplifiers

Titanium-doped sapphire (Ti3+:Al2O3) is a widely used transition-metal doped laser crystal. The Ti3+ ion has a very large gain bandwidth, that opens possibility to obtain very wide wavelength tunability realized in short pulse lasers. To obtain crystals with good optical quality Ti3+ doping concentration should not exceed 0,25 at.%. Thus the crystals with thickness of several millimeters have to be used. The crystal is characterized by short upper-state lifetime and high saturation power. All these facts lead to necessity of strongly focused pump beam usage.

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