This article is cited in 21 papers

Control of laser radiation parameters

Synchronisation of a femtosecond laser and a Q-switched laser to within 50 ps

E. V. Katin, V. V. Lozhkarev, O. V. Palashov, E. A. Khazanov

Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod

Abstract: A Nd:YLF laser emitting 2-ns pulses synchronised with a femtosecond Cr:forsterite laser is built. The pulse duration and synchronisation are ensured by two Pockels cells, in which voltage pulses are synchronised with the femtosecond laser by fast emitter-coupled logic elements. One of the Pockels cells ensures Q-switching, while the other cuts a short pulse from a 15-ns Q-switched pulse. The experimental results show that the two-step scheme proposed for synchronisation of a Q-switched laser and a passively mode-locked laser provides quite simple and reliable synchronisation of these lasers with a jitter of a few tens of picoseconds.

PACS: 42.55.Rz, 42.60.Fc

Received: 12.11.2002

 English version: Quantum Electronics, 2003, 33:9, 836–840

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