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Blue Pr(3+)-doped ZBLAN fiber upconversion laser
Optics Letters
|October 31, 2009
Summary
Researchers achieved blue laser emission using a novel Pr(3+)-doped upconversion fiber laser. This direct semiconductor laser-diode-pumped system generated over 1 mW of power at 492 nm.
Area of Science:
- Optics and Photonics
- Materials Science
- Laser Physics
Background:
- Upconversion fiber lasers offer potential for visible light generation.
- Praseodymium (Pr3+)-doped materials are known for their luminescent properties.
- Direct diode-pumping provides an efficient excitation method for lasers.
Purpose of the Study:
- To demonstrate blue laser emission from a Pr(3+)-doped upconversion fiber laser.
- To investigate the performance of a direct semiconductor laser-diode-pumped system.
- To achieve efficient visible light generation using upconversion processes.
Main Methods:
- Fabrication of a Pr(3+)-doped silica fiber.
- Construction of a fiber laser cavity.
- Pumping the fiber laser using semiconductor lasers at 830 nm and 1020 nm.
- Characterization of the laser output spectrum and power.
Main Results:
- Successful demonstration of blue laser emission at 492 nm.
- Achieved output power exceeding 1 milliwatt (mW).
- Utilized efficient direct semiconductor laser-diode pumping.
Conclusions:
- Direct semiconductor laser-diode-pumping is an effective method for Pr(3+)-doped upconversion fiber lasers.
- The developed laser system shows promise for visible light applications.
- Further optimization could lead to higher output powers and improved efficiency.
