Cryogenic Tm:LiYF4 laser around 2 µm

We present the laser characteristics of a 5 at.% Tm:YLF crystal using a modular setup at cryogenic temperatures emitting around 2 µm. Continuous-wave laser operation was achieved by pumping the laser crystal using a Volume Bragg Grating-stabilized laser diode emitting at 793 nm. A maximum output pow...

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Veröffentlicht in:	Applied physics. B, Lasers and optics Lasers and optics, 2023-03, Vol.129 (3), Article 41
Hauptverfasser:	Alles, Adrian, Jambunathan, Venkatesan, Slimi, Sami, Serres, Josep M., Aguiló, Magdalena, Díaz, Francesc, Mateos, Xavier, Smrz, Martin, Mocek, Tomas
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied physics Bragg gratings Continuous wave lasers Cryogenic temperature Engineering Laser pumping Lasers Optical Devices Optics Photonics Physical Chemistry Physics Physics and Astronomy Quantum Optics Semiconductor lasers
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Zusammenfassung:	We present the laser characteristics of a 5 at.% Tm:YLF crystal using a modular setup at cryogenic temperatures emitting around 2 µm. Continuous-wave laser operation was achieved by pumping the laser crystal using a Volume Bragg Grating-stabilized laser diode emitting at 793 nm. A maximum output power of 6.5 W was achieved at 80 K corresponding to a slope efficiency of 66.0% with respect to the absorbed power with excellent beam quality.
ISSN:	0946-2171 1432-0649
DOI:	10.1007/s00340-023-07970-8