Which lasers does not produce IR?

[QU1CKF05T3R]

So i just want to know which laser does not produce IR ?

Do Blue , Red And Violet are IR free ?

And green one have IR if its not filtered ?

Thanks in Advances guy ?

 

[DrSid]

Basically yes, you are correct. But it's not so simple.
Direct diode laser do not have IR. Unless they are IR diode lasers, of course. These days we have red, blue (445nm), violet (405nm) direct laser diodes.
DPSS lasers usually have IR as pumping wavelength, and some of it will get out. This is mostly case for greens, but there are also yellow or blue DPSS lasers. Usually they have low output and high price.

 

[QU1CKF05T3R]

ok thanks its good to know

thanks