I want to pump a PPKTP crystal (3cm long) with a 775nm CW laser. It is focused on 150 microns diameter and I can use up to 4 W of power. Does anyone have experience with the damage threshold for PPKTP?
Kristalin hasar eşiği merkez atoma kadar devam eder. Merkez atomda daha hassas olur. Burada kristalin yapısının atom ve moleküle ayrılma gibi bir durum söz konusu.
It's damage threshold is near 1 GW/cm2 for 1 Hz 10 ns pulses at 1064nm. However, it is now limited to moderate to low power applications due to it's gray
Dear Dr. Dorilian Lopez-Mago,
You may want to look over some seemingly useful information:
Potassium titanyl phosphate (KTiOPO4 or KTP) is a nonlinear optical crystal commonly used for frequency conversion processes like second harmonic generation (SHG) and optical parametric oscillation (OPO). The damage threshold of a crystal like PPKTP (Periodically Poled KTP) is influenced by factors such as crystal quality, incident laser parameters, and environmental conditions. While I don't have specific data on the damage threshold for PPKTP at 775 nm, I can offer some general considerations:
Due to the complexity of these factors, it's recommended to consult with the manufacturer of the PPKTP crystal or conduct thorough experimentation to determine the crystal's damage threshold under your specific conditions. Laser damage testing involves gradually increasing the laser power while monitoring the crystal's optical quality and performance. It's crucial to approach the crystal's damage threshold carefully to avoid irreversible damage and ensure safe and effective operation.
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