Hi all
Saw this...
http://www.klastech.com/concerto-442nm-laser_16.html
It's a seemingly nice replacement for HeCd's with great coherence length. I guess the price, as always, will be the killer though.
Jem
442nm HeCd Replacement
442nm HeCd Replacement
Somebody reported that Nichia blue diodes from Casio projectors that are solt onn eBay here and there have good coherence at certain current if thermally stabilized. Let's try?
442nm HeCd Replacement
There was a great thread about using the C*s*o diodes on the old forum. Lot's of good information on there. Let's hope the archive is safe and it reappears in the not too distant future.
Jem
Jem
442nm HeCd Replacement
I'd like to try blue diodes as well. But now I'm too busy making a unidirectional ring MOPA laser from an SSY-1 for pulsed holography