Electro-optic active Q-switched Tm:YLF laser based on polarization modulation

Salman Noach; Rotem Nahear; Yehuda Vidal; Yehudit Garcia; Aharon J. Agranat

doi:10.1364/ol.422308

Electro-optic active Q-switched Tm:YLF laser based on polarization modulation

Salman Noach^*, Rotem Nahear, Yehuda Vidal, Yehudit Garcia, Aharon J. Agranat

^*Corresponding author for this work

The Institute of Applied Physics

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

An electro-optic active Q-switched Tm:YLF laser (1880 nm) employing a novel, to the best of our knowledge, switching scheme is presented. The switching is done by a potassium lithium tantalate niobate (KLTN) crystal operated slightly above the ferroelectric phase transition, cut in a trapezoidal shape for reducing acousto-optic oscillations. The novel switching scheme exploits the emission cross section difference between the π and σ polarizations in the Tm:YLF and overcomes the residual oscillation effects even at high repetition rates. The laser exhibited stable operation yielding pulses of 0.81 mJ and pulse duration of 30 ns at 5 kHz, and pulses of 1.25 mJ and pulse duration of 19 ns at 500 Hz.

Original language	English
Pages (from-to)	1971-1974
Number of pages	4
Journal	Optics Letters
Volume	46
Issue number	8
DOIs	https://doi.org/10.1364/ol.422308
State	Published - 15 Apr 2021

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©2021 Optical Society of America.

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abstract = "An electro-optic active Q-switched Tm:YLF laser (1880 nm) employing a novel, to the best of our knowledge, switching scheme is presented. The switching is done by a potassium lithium tantalate niobate (KLTN) crystal operated slightly above the ferroelectric phase transition, cut in a trapezoidal shape for reducing acousto-optic oscillations. The novel switching scheme exploits the emission cross section difference between the π and σ polarizations in the Tm:YLF and overcomes the residual oscillation effects even at high repetition rates. The laser exhibited stable operation yielding pulses of 0.81 mJ and pulse duration of 30 ns at 5 kHz, and pulses of 1.25 mJ and pulse duration of 19 ns at 500 Hz.",

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AU - Noach, Salman

AU - Nahear, Rotem

AU - Vidal, Yehuda

AU - Garcia, Yehudit

AU - Agranat, Aharon J.

PY - 2021/4/15

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AB - An electro-optic active Q-switched Tm:YLF laser (1880 nm) employing a novel, to the best of our knowledge, switching scheme is presented. The switching is done by a potassium lithium tantalate niobate (KLTN) crystal operated slightly above the ferroelectric phase transition, cut in a trapezoidal shape for reducing acousto-optic oscillations. The novel switching scheme exploits the emission cross section difference between the π and σ polarizations in the Tm:YLF and overcomes the residual oscillation effects even at high repetition rates. The laser exhibited stable operation yielding pulses of 0.81 mJ and pulse duration of 30 ns at 5 kHz, and pulses of 1.25 mJ and pulse duration of 19 ns at 500 Hz.

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Electro-optic active Q-switched Tm:YLF laser based on polarization modulation

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