- #1
Ted goldmund lee
- 3
- 0
So, I was working on autocorrelation for my pulse laser system and I started to wonder what is the difference between single wave with 400nm of wavelength and two 800nm waves overlapped.
In the knowledge, I know of, is that wavelength is the length between two picks.
And when it is pulse laser, often we use co-linear autocorrelation to obtain time width of our pulse. When I do this, how accurately I overlap two beams it shows 800nm not 400nm but in my dumb head I can't help but think this should be 400nm.
I know it is not 400nm because I saw it, but I just want to know what is the main difference.
In the knowledge, I know of, is that wavelength is the length between two picks.
And when it is pulse laser, often we use co-linear autocorrelation to obtain time width of our pulse. When I do this, how accurately I overlap two beams it shows 800nm not 400nm but in my dumb head I can't help but think this should be 400nm.
I know it is not 400nm because I saw it, but I just want to know what is the main difference.