Polarized spectroscopy and laser operation of Tm3+:YAlO3 crystal on the 3H4 → 3H5 transition

Lauren Guillemot; Pavel Loiko; Esrom Kifle; Alain Braud; Jean-Louis Doualan; Ammar Hideur; Michal Koselja; Richard Moncorgé; Patrice Camy

doi:10.1117/12.2555405

1 April 2020 Spectroscopy and laser operation of Tm³⁺:YAlO₃ crystal on the ³H₄ → ³H₅ transition

Lauren Guillemot, Pavel Loiko, Esrom Kifle, Alain Braud, Jean-Louis Doualan, Ammar Hideur, Michal Koselja, Richard Moncorgé, Patrice Camy

Author Affiliations +

Proceedings Volume 11357, Fiber Lasers and Glass Photonics: Materials through Applications II; 113570H (2020) https://doi.org/10.1117/12.2555405
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

Yttrium orthoaluminate (YAlO₃) is an attractive laser host crystal for doping with thulium (Tm³⁺) ions. We report on the absorption and stimulated-emission (SE) cross-sections of this orthorhombic (sp. gr. Pnma) Tm:YAlO₃ crystal for the principal light polarizations, E || a, b and c. Polarized absorption data lead to the Judd-Ofelt parameters Ω₂ = 1.46, Ω₄ = 2.82 and Ω₆ = 1.09 [10^-20 cm²]. In particular, for the ³H₄ → ³H₅ transition, it is found a stimulated emission cross section of 0.86×10^-20 cm² at 2278 nm corresponding to an emission bandwidth of ~12 nm (for E || b). Continuous-wave laser operation on this ³H₄ → ³H₅ transition is achieved with an 1.8 at.% Tm:YAlO₃ crystal under laser-pumping at 776 nm. The mid-infrared Tm:YAlO₃ laser generated 0.96 W at ~2274 nm with a slope efficiency of 61.8% and a linear laser polarization (E || b). Tm:YAlO₃ is promising for mode-locked lasers at ~2.3 μm.

Conference Presentation

Citation Download Citation

Lauren Guillemot, Pavel Loiko, Esrom Kifle, Alain Braud, Jean-Louis Doualan, Ammar Hideur, Michal Koselja, Richard Moncorgé, and Patrice Camy "Spectroscopy and laser operation of Tm³⁺:YAlO₃ crystal on the ³H₄ → ³H₅ transition", Proc. SPIE 11357, Fiber Lasers and Glass Photonics: Materials through Applications II, 113570H (1 April 2020); https://doi.org/10.1117/12.2555405

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available