HeNe lasers

[Scriabin]

I forgot to say that there is a way to improve the power output of any He-Ne laser even by 30-40% or more. This laser have also an infrared laser transition(around 3000 nm) which competes against 632 nm transition. Since 3000 nm has a lower frequence than 632 nm, it is more influenced by manetic fields.
To boost the power you should place several strong magnets around the laser tube, in opposite polarity (N-S/N-S/N-S etc..) which suppress the infrared beam and let pass more red light.

 

[JLSE]

I will definately give that a try

 

[Scriabin]

I will definately give that a try

here you can find more specific information: http://www.repairfaq.org/sam/laserhen.htm#henmag

 

[JLSE]

In all the years ive had he/ne's, I have never heard of that : aparently it works with the green, yellow and orange also ;D