Btw, what heater temperature should be? I'm planning to use the module with ambient 28..30C temperature, do i need the heater or peltier element to cold it to 25C?
Trying to find cheap 405nm laser with good coherency and got a crazy idea. It is possible to replace the infrared laser diode with higher frequency one to get beam with doubled (if 1064nm diode is used in the module) frequency from it? As i understand, PLNN crystals can work at very broad ranges with different efficiency, say if i get 20..30% efficiency with 400..420nm output that will be good enough for me.
Trying to find cheap 405nm laser with good coherency and got a crazy idea. It is possible to replace the infrared laser diode with higher frequency one to get beam with doubled (if 1064nm diode is used in the module) frequency from it? As i understand, PLNN crystals can work at very broad ranges with different efficiency, say if i get 20..30% efficiency with 400..420nm output that will be good enough for me.