Luminescent and lasing characteristics of heavily doped Yb{sup 3+}:KY(WO{sub 4}){sub 2} crystals

Journal Article · Sun Apr 30 00:00:00 EDT 2006 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2006V036N04ABEH013143· OSTI ID:21456880

Kisel', V E; Troshin, A E; Shcherbitskii, V G; Kuleshov, N V ^[1]; Pavlyuk, A A ^[2]; Brunner, F; Paschotta, R; Morier-Genoud, F; Keller, U ^[3]

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1. International Laser Center, Belarus State Technical University, Minsk (Belarus)
2. A.V. Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)
3. ETH Zuerich, Physics Department, Institute of Quantum Electronics, Zuerich (Switzerland)

The luminescence decay times are measured taking into account reabsorption for KY(WO{sub 4}){sub 2}:Yb(KYW:Yb) crystals with atomic concentrations of active ions from 0.2% to 30%. The radiative lifetime of Yb{sup 3+} ions was measured to be 233 {mu}s. The cw output power of 1.46 and 1.62 W was achieved with the slope efficiency 52% and 47% for Yb:KYW lasers with the atomic concentration of Yb{sup 3+} ions equal to 10% and 30%, respectively. Using a semiconductor mirror with a saturable absorber (SESAM) in the passive mode-locking regime, pulses of duration 194 and 180 fs were obtained at wavelengths of 1042 and 1039 nm for crystals with Yb{sup 3+} concentrations equal to 10% and 30%, respectively, the average output power being 0.63 and 0.75 W. (lasers and amplifiers)

• OSTI ID: 21456880
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 36, Issue 4; Other Information: DOI: 10.1070/QE2006v036n04ABEH013143; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARRIER LIFETIME
CRYSTALS
DECAY
DOPED MATERIALS
EFFICIENCY
LASER MIRRORS
LUMINESCENCE
MODE LOCKING
PULSES
SEMICONDUCTOR MATERIALS
TUNGSTATES
WAVELENGTHS
YTTERBIUM IONS
CHARGED PARTICLES
EMISSION
IONS
LIFETIME
MATERIALS
MIRRORS
OXYGEN COMPOUNDS
PHOTON EMISSION
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS