Recent content by juliettengo

Hi Claude, I completely agree with your formula. but i integrate my measured spectrum over the whole wavelength range to get the area under the curve ∫∫f1(λ-λ')tau(λ)dλdλ'. This time i attach the file in pdf. Sorry to not type all the equations here. Hope that u can see my calculations...

Hi Claude, I agree with you if i want to measure the absolute value of optical power. But I want only to measure a relative value as explained in the attached file below. Hope that clear my issue. Regards

Hi again, Yes my laser is a solid-state laser, a semiconductor laser diode. The power emitted by the laser is 1.5W (high power laser diode). As i said, i care only about relative value of optical power, therefore i don't have to couple the whole 1.5W to my measurement device. Using a...

Hello Andy, My problem is i don't have any powermeter. Of course, i have the laser power from the specification. But I'm setting up a bench to test my laser and i need to be able to read out the optical power (even if only relative value) for different driving conditions. To summarize, if...

Hi all, I have only one spectrometer and 2 different light sources. I need to measure the optical power of the light sources. The spectrometer has a resolution of 8 nm. I measure the spectrum of each light source. And then calculate the optical power by integrating over the spectrum. My...