Laser modulation clarification needed
Laser modulation clarification needed
(OP)
Hello,
I need professional help in clarification of what happens to laser when it is modulated in my particular case. I will be using e.g. 200mW 808nm laser. It is not pulsed laser, CW. I will feed current from current controller. Besides, I will modulate current controller output with function generator, and modulation will be e.g. 50kHz and 6-16 microseconds (or even in milliseconds range) pulse widths. I am wondering what will be the power of the pulses (pulse/peak power)? Will if follow the rule that peak power=average power/duty cycle? Or does this rule apply only in cases when ns and ps pulses are used?
Thank you!
I need professional help in clarification of what happens to laser when it is modulated in my particular case. I will be using e.g. 200mW 808nm laser. It is not pulsed laser, CW. I will feed current from current controller. Besides, I will modulate current controller output with function generator, and modulation will be e.g. 50kHz and 6-16 microseconds (or even in milliseconds range) pulse widths. I am wondering what will be the power of the pulses (pulse/peak power)? Will if follow the rule that peak power=average power/duty cycle? Or does this rule apply only in cases when ns and ps pulses are used?
Thank you!





RE: Laser modulation clarification needed
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers
RE: Laser modulation clarification needed
So do you mean that this rule is working for micro- and milliseconds pulses? Or it is even not pulses but a modulation of CW laser. I am still a bit confused because some sources say that the rule is applicable only for pulsed lasers (which are not CW initially) but some say that it for both, but in case of modulated CW laser rule works only for up to 100 ns pulses...
RE: Laser modulation clarification needed
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers