Abstract :
Measurements of population inversion energy storage and heat deposition in flashlamp-pumped Nd:Yb:Er:glass and Cr:Nd:Yb:Er:glass lasers are reported. A thermal camera is used to measure temperature changes following isolated flashlamp pulses. A rate equation model is developed in order to determine energy storage from the output versus input energy characteristics of erbium lasers operating in a free-oscillation mode. Contributions of different sensitizers are distinguished by spectrally filtering flashlamp-pump radiation. Ratios of the deposited heat per unit stored energy in both glasses are compared for several spectral regions.
Keywords :
"Energy storage","Laser modes","Pulsed laser deposition","Pulse measurements","Temperature measurement","Energy measurement","Cameras","Temperature sensors","Equations","Erbium"
