Simple electro-optic technique to generate temporally flat-top laser pulses |
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Authors: | A.K. Sharma R.K. Patidar M. Raghuramaiah P.A. Naik P.D. Gupta |
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Affiliation: | Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, M.P., India |
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Abstract: | A simple technique is presented to generate temporally flat-top shaped laser pulses using electro-optic modulator (Pockels cell). It involves splitting of input laser pulse into two halves of equal intensity and then stacking together with appropriate optical delay to get a temporally flat-top laser pulse. It also allows generation of other pulse shapes by varying the relative intensity, delay, and phase between two halves of the input laser pulse. Temporally flat-top laser pulses of duration ~ 9 ns have been generated using ~ 7 ns duration incident laser pulses from a flash lamp pumped Q-switched Nd:glass laser oscillator. The rise and fall-time of the shaped pulse is limited by speed of electro-optic switch (Pockels cell), which is ~ 2 ns in the present case. |
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Keywords: | Temporal pulse shaping Flat-top pulse shape Electro-optic switching |
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