Spectroscopy and laser operation of Indium-modified Yb:KLuW: a promising crystal for femtosecond lasers

Xavier Mateos; Josep Maria Serres; Pavel Loiko; Konstantin Yumashev; Uwe Griebner; Valentin Petrov; Magdalena Aguiló; Francesc Díaz

doi:10.1117/12.2253687

17 February 2017 Spectroscopy and laser operation of Indium-modified Yb:KLuW: a promising crystal for femtosecond lasers

Xavier Mateos, Josep Maria Serres, Pavel Loiko, Konstantin Yumashev, Uwe Griebner, Valentin Petrov, Magdalena Aguiló, Francesc Díaz

Author Affiliations +

Proceedings Volume 10082, Solid State Lasers XXVI: Technology and Devices; 1008214 (2017) https://doi.org/10.1117/12.2253687
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

We report on the growth, spectroscopic and laser characterization of a novel monoclinic laser crystal, 3.5 at.% Yb, 5.5 at.% In:KLu(WO₄)₂ (Yb,In:KLuW). Single-crystals of high optical quality are grown by the TSSG method. The absorption, stimulated-emission and gain cross-sections are determined for this material at room temperature with polarized light. The maximum σ_abs is 9.9×10^-20 cm² at 980.8 nm for light polarization E || N_m. The radiative lifetime of Yb³⁺ in Yb,In:KLuW is 237±5 μs. The stimulated-emission cross-sections are σ_SE(m) = 2.4×10^-20 cm² at 1022.4 nm and σ_SE(p) = 1.3×10^-20 cm² at 1039.1 nm corresponding to an emission bandwidth of >30 nm and >35 nm, respectively. A diode-pumped N_g-cut Yb,In:KLuW microchip laser generates 4.11 W at 1047-1052 nm with a slope efficiency of 78%. Passive Q-switching of a Yb,In:KLuW laser is also demonstrated. The Yb,In:KLuW crystal seems very promising for sub-100 fs mode-locked lasers.

Conference Presentation

Citation Download Citation

Xavier Mateos, Josep Maria Serres, Pavel Loiko, Konstantin Yumashev, Uwe Griebner, Valentin Petrov, Magdalena Aguiló, and Francesc Díaz "Spectroscopy and laser operation of Indium-modified Yb:KLuW: a promising crystal for femtosecond lasers", Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 1008214 (17 February 2017); https://doi.org/10.1117/12.2253687

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