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

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


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 languageAmerican English
Pages (from-to)1971-1974
Number of pages4
JournalOptics Letters
Issue number8
StatePublished - 15 Apr 2021

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©2021 Optical Society of America.


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