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The way to overcome this is to use an output coupler with a radius of curvature, rather than a flat mirror or coating.
Why not grind the end of the KTP itself into a curve?
The way to overcome this is to use an output coupler with a radius of curvature, rather than a flat mirror or coating.
Why not grind the end of the KTP itself into a curve?
try this link. this guy grew his own crystals and got it to lase
http://www.milankarakas.org/pub/KDP/HomegrownKDP.html