Generation, measurement and optimization of a variable duration, short pulse, mode-locked cavity-dumped Nd:YAG laser |
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Authors: | S Chaurasia CG Murali R Vijayan |
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Institution: | a Laser and Neutron Physics Section, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India b Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India |
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Abstract: | Spectral and temporal measurements undertaken on a single picosecond laser pulse from a flash lamp pumped, cavity dumped, active/passive mode-locked Nd:YAG laser are presented in this paper. Optimization of several parameters of the resonator cavity produced a single pulse with 0.7 mJ energy and 102 contrast. The pulse duration was variable from 24 to 120 ps by using intra-cavity etalons of different thicknesses. The pulse width and spectrum of the pulse were simultaneously measured using a second harmonic autocorrelator and a spectrometer. The time bandwidth product was 0.445, which is close to theoretical limit for a bandwidth limited pulse. |
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Keywords: | Mode-locked lasers Intra-cavity etalon Time bandwidth product |
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