• S M Oak

      Articles written in Pramana – Journal of Physics

    • Relaxation oscillation studies in Nd: YAG laser—Some new results

      S M Oak T P S Nathan D D Bhawalkar

      More Details Abstract Fulltext PDF

      The study of transient behaviour of a pulse pumped solid state laser system has assumed importance on account of SLM generation by self-seeding with the pre-lase signal. This paper reports on the observations of seed pulses for two different Nd: YAG laser rods, one with anti-reflection coating (AR) on end faces and the other without. The latter displays single longitudinal mode behaviour in each of the relaxation pulse train while the former displays multimode behaviour. Our observations are well explained by the ‘active etalon concept’ introduced earlier.

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