Abstract
Detailed experimental study of laser dye stability and the subsequent effects of photodegradation products on the operation of a Nd:YAG laser pumped Rhodamine-6G pulsed dye oscillator has been carried out. Deterioration of laser output on account of dye photodegradation resulting in the loss of active dye molecules and the generation and accumulation of reaction products that introduce a loss at the laser and pump wavelengths has been theoretically simulated in terms of a time dependent rate equation model. Our experimental observations have been found to be in good agreement with our theoretical estimates. We have also investigated the deterioration in the performance of a copper vapour laser pumped tunable dye laser with a high average power and a high repetition rate operating over an extended period of time. Our theoretical model, when suitably modified, provided useful estimates for the extent of deterioration in laser performance of such a dye laser with a high average power and a high repetition rate on account of photodegradation of the active dye molecules.
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42.55.Mv; 42.60.By; 42.70.Hj
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Sinha, S., Sasikumar, S., Ray, A. et al. The effect of dye photodegradation on the performance of dye lasers. Appl. Phys. B 78, 401–408 (2004). https://doi.org/10.1007/s00340-003-1383-4
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DOI: https://doi.org/10.1007/s00340-003-1383-4