Efficient tunable laser operation of diode-pumped Yb,Tm:KY(WO4)2 around 1.9 μm

L. E. Batay; A. A. Demidovich; A. N. Kuzmin; A. N. Titov; M. Mond; S. Kück

doi:10.1007/s00340-002-0998-1

Efficient tunable laser operation of diode-pumped Yb,Tm:KY(WO₄)₂ around 1.9 μm

L. E. Batay
, A. A. Demidovich
, A. N. Kuzmin
, A. N. Titov
, M. Mond
, S. Kück

Institute for Lasers Photonics and Biophotonics

Belarus Academy of Sciences
S.I. Vavilov State Optical Institute
University of Hamburg
Physikalisch-Technische Bundesanstalt

Research output: Contribution to journal › Article › peer-review

73 Scopus citations

Abstract

A new laser medium - Yb,Tm:KY(WO₄)₂ - for diode pumped solid state laser applications operating around 1.9 to 2.0 μm has been investigated and the main laser characteristics are presented. Diode pumping at 981 nm and around 805 nm was realised. For 981-nm pumping, the excitation occurs into Yb³⁺ ions followed by an energy transfer to Tm³⁺ ions. A slope efficiency of 19% was realised. For pumping around 805 nm, the excitation occurs directly into the Tm³⁺ ions. Here a maximum slope efficiency of 52%, an optical efficiency of 40%, and output powers of more than 1W were realised. Using a birefringent quartz plate as an intracavity tuning element, the tunability of the Yb,Tm:KY(WO₄)₂ laser in the spectral range of 1.85-2.0 μm has been demonstrated. The possibility of laser operation in a microchip cavity configuration for this material has also been shown.

Original language	English
Pages (from-to)	457-461
Number of pages	5
Journal	Applied Physics B: Lasers and Optics
Volume	75
Issue number	4-5
DOIs	https://doi.org/10.1007/s00340-002-0998-1
State	Published - Oct 2002

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title = "Efficient tunable laser operation of diode-pumped Yb,Tm:KY(WO4)2 around 1.9 μm",

abstract = "A new laser medium - Yb,Tm:KY(WO4)2 - for diode pumped solid state laser applications operating around 1.9 to 2.0 μm has been investigated and the main laser characteristics are presented. Diode pumping at 981 nm and around 805 nm was realised. For 981-nm pumping, the excitation occurs into Yb3+ ions followed by an energy transfer to Tm3+ ions. A slope efficiency of 19\% was realised. For pumping around 805 nm, the excitation occurs directly into the Tm3+ ions. Here a maximum slope efficiency of 52\%, an optical efficiency of 40\%, and output powers of more than 1W were realised. Using a birefringent quartz plate as an intracavity tuning element, the tunability of the Yb,Tm:KY(WO4)2 laser in the spectral range of 1.85-2.0 μm has been demonstrated. The possibility of laser operation in a microchip cavity configuration for this material has also been shown.",

author = "Batay, \{L. E.\} and Demidovich, \{A. A.\} and Kuzmin, \{A. N.\} and Titov, \{A. N.\} and M. Mond and S. K{\"u}ck",

year = "2002",

month = oct,

doi = "10.1007/s00340-002-0998-1",

language = "English",

volume = "75",

pages = "457--461",

journal = "Applied Physics B: Lasers and Optics",

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T1 - Efficient tunable laser operation of diode-pumped Yb,Tm:KY(WO4)2 around 1.9 μm

AU - Batay, L. E.

AU - Demidovich, A. A.

AU - Kuzmin, A. N.

AU - Titov, A. N.

AU - Mond, M.

AU - Kück, S.

PY - 2002/10

Y1 - 2002/10

N2 - A new laser medium - Yb,Tm:KY(WO4)2 - for diode pumped solid state laser applications operating around 1.9 to 2.0 μm has been investigated and the main laser characteristics are presented. Diode pumping at 981 nm and around 805 nm was realised. For 981-nm pumping, the excitation occurs into Yb3+ ions followed by an energy transfer to Tm3+ ions. A slope efficiency of 19% was realised. For pumping around 805 nm, the excitation occurs directly into the Tm3+ ions. Here a maximum slope efficiency of 52%, an optical efficiency of 40%, and output powers of more than 1W were realised. Using a birefringent quartz plate as an intracavity tuning element, the tunability of the Yb,Tm:KY(WO4)2 laser in the spectral range of 1.85-2.0 μm has been demonstrated. The possibility of laser operation in a microchip cavity configuration for this material has also been shown.

AB - A new laser medium - Yb,Tm:KY(WO4)2 - for diode pumped solid state laser applications operating around 1.9 to 2.0 μm has been investigated and the main laser characteristics are presented. Diode pumping at 981 nm and around 805 nm was realised. For 981-nm pumping, the excitation occurs into Yb3+ ions followed by an energy transfer to Tm3+ ions. A slope efficiency of 19% was realised. For pumping around 805 nm, the excitation occurs directly into the Tm3+ ions. Here a maximum slope efficiency of 52%, an optical efficiency of 40%, and output powers of more than 1W were realised. Using a birefringent quartz plate as an intracavity tuning element, the tunability of the Yb,Tm:KY(WO4)2 laser in the spectral range of 1.85-2.0 μm has been demonstrated. The possibility of laser operation in a microchip cavity configuration for this material has also been shown.

UR - https://www.scopus.com/pages/publications/0036818655

U2 - 10.1007/s00340-002-0998-1

DO - 10.1007/s00340-002-0998-1

M3 - Article

AN - SCOPUS:0036818655

SN - 0946-2171

VL - 75

SP - 457

EP - 461

JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

IS - 4-5

ER -

Efficient tunable laser operation of diode-pumped Yb,Tm:KY(WO₄)₂ around 1.9 μm

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