- Jul 27, 2010
Instead of flashlamp pumping a ruby rod laser, what about diode pumping? Does anyone know what pump frequency a 694.3 nm ruby rod likes best?
Read more here: http://www.repairfaq.org/sam/laserssl.htm#sslcwr"A CW-pumped ruby laser, which used a rod 2 mm in diameter and 50 mm in length, generated an output of 1.3 watts at an input of 2.9 kW. Only a small part of the crystal's cross-section was excited by the filament arc, and lasing action occurred only in the small volume of 6 x 10-3 cm3. Using this value, the lamp input power per unit volume of active material required to obtain threshold is approximately 230 kW/cm3. The main reason for the poor efficiency was the low absorption of useful pump light by the small lasing volume."
That would explain your expertise. Nice to meet you Walter. I’ve wondered about your kits for a while. That Pr:YLF also interested me. I recommend you introduce yourself in the welcome section of the forum. I’m sure you will fit in well here.
But that rod is not lasing there. It does produce a red dot, but i'm sure it's not monochromatic, it's just fluorescing.Interesting article, thanks for sharing. I think we can let you off on the necroposting.
It's surprisingly not difficult to do. The paper is so concise that it technically could be replicated.
I have a ruby rod and a bdr-209, might have to think about getting some optics.