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Continuous-wave laser operation of Yb:LuVO4
Junhai Liu1, Xavier Mateos, Huaijin Zhang
1Max-Born-Institute for Nonlinear Optics and Ultrafast Spectroscopy, Berlin, Germany. jhliu@mbi-berlin.de
Optics Letters
|December 14, 2005
Summary
A new Ytterbium-doped Lutetium Vanadate (Yb:LuVO4) crystal demonstrates promising room-temperature laser performance. This material exhibits efficient continuous-wave laser operation, making it suitable for various laser applications.
Area of Science:
- Materials Science
- Laser Physics
- Solid-State Spectroscopy
Background:
- Rare-earth doped vanadate crystals are crucial for developing advanced laser systems.
- Investigating novel crystalline materials like Yb:LuVO4 is essential for enhancing laser efficiency and exploring new wavelengths.
Purpose of the Study:
- To characterize the room-temperature spectroscopic properties of a new Yb:LuVO4 crystal.
- To demonstrate continuous-wave laser operation of the Yb:LuVO4 crystal.
Main Methods:
- Spectroscopic measurements were performed at room temperature to determine absorption and emission cross-sections.
- Continuous-wave laser oscillation was achieved using both Ti:sapphire and diode laser pumping.
Main Results:
- The Yb:LuVO4 crystal showed a peak absorption cross-section of 8.42 x 10^-20 cm^2 at 985 nm (π-polarization) and a stimulated emission cross-section of 1.03 x 10^-20 cm^2 at 1020 nm.
- Ti:sapphire laser pumping yielded an output power of 0.36 W at 1041 nm with a 47% slope efficiency.
- Diode laser pumping achieved an output power of 1.05 W.
Conclusions:
- The Yb:LuVO4 crystal exhibits favorable spectroscopic properties for laser applications.
- The demonstrated continuous-wave laser operation highlights the potential of Yb:LuVO4 as a gain medium for efficient solid-state lasers.