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Opt Express. 2012 Feb 27;20(5):5524-9. doi: 10.1364/OE.20.005524.

Picosecond pulse generation in a hybrid Q-switched laser source by using a microelectromechanical mirror.

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  • 1Xlim Research Institute, University of Limoges, UMR CNRS 6172, 123 Avenue Albert Thomas, 87100 Limoges, France.


We present a novel Q-switched laser source using a micro-optical-electromechanical mirror (MOEM) designed for short pulse emission. It is based on a hybrid configuration including a passively Q-switched microchip laser coupled to a fiber cavity closed by a cantilever type MOEM acting as an active modulator. This specially designed mirror with a single reflecting gold membrane is switched by low bias voltage ~50 V (peak to peak). This device emits pulses at tunable repetition rates up to 1.6 kHz, with ~564 ps duration and 3.4 kW peak power, which constitutes the shortest pulse duration ever reported with MOEMs based pulsed lasers.

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