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Passively Q-switched Cr:LiCAF laser with a saturable Bragg reflector

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Abstract

We present a low-cost multimode diode pumped passively Q-switched Cr:LiCAF laser operating near 800 nm. AlGaAs-based saturable Bragg reflectors (SBRs) were used for passive Q-switching. The system is experimentally characterized in detail using four different output couplers and two SBRs with different modulation depths. Pulse widths in the 1.5–4 µs range at repetition rates between 18 and 40 kHz were achieved with average powers up to 125 mW. The experimentally obtained results are compared with basic Q-switching theory and further performance improvement in terms of pulse length shortening and peak power scaling is elaborated.

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Acknowledgements

UD acknowledge support from BAGEP Award of the Bilim Akademisi.

Funding

Scientific and Technological Research Council of Turkey (TÜBİTAK, 119E264).

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Authors and Affiliations

  1. Laser Technology Laboratory, Department of Electrical and Electronics Engineering, Antalya Bilim University, 07190, Antalya, Turkey

    Serdar Okuyucu, Yusuf Ozturk & Umit Demirbas

  2. Center for Free-Electron Laser Science, Deutsches Elektronen Synchrotron, Hamburg, 22607, Germany

    Umit Demirbas

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  1. Serdar Okuyucu
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Correspondence to Serdar Okuyucu.

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Okuyucu, S., Ozturk, Y. & Demirbas, U. Passively Q-switched Cr:LiCAF laser with a saturable Bragg reflector. Appl. Phys. B 127, 54 (2021). https://doi.org/10.1007/s00340-021-07593-x

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