Posted on May 23, 2010.
I WAN to calculate the energy of Nd Yag laser densirt. How are you computing? i WAN to calculate the energy of Nd Yag laser densirt. How are you computing?
Performance of laser systems is generally assessed by measuring the output beams rather than calculations based on the system design and input power or optical. The problem with lasers is that the influence factors are highly variable - the power of the beam can vary from microwatts to megawatts, the output can be CW or pulsed, and everything changes almost wavelength (we do not indicate whether the output is in the near IR or frequency doubled to 532 nm, by the way).
Nd: YAG power devices are relatively high, which gives the possibility to use either solid-state detectors, with some attenuation of the beam to increase the power level until the work area of the instrument, or calorimeters black absorption type, which have the advantage of integrating the energy levels in the pulse systems (if necessary). However, there are other measures that might be needed - beam profile, for example - and we really need more information about the system and what needs to be reached.
I guess you must use a kind of calorimeter - one that converts all the optical energy into heat energy, which heats a little water. Then we measure the temperature rise, the mass of water, etc. and calculate the energy absorbed.
Really just guessing.
Would you translate your question in English?