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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
Published on: April 24, 2014
Efficient diode-end-pumped dual-wavelength Nd, Gd:YSGG laser
Kai Zhong1, Jianquan Yao, Chongling Sun
1College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China. zhongkai1984@gmail.com
Optics Letters
|October 4, 2011
Summary
Researchers developed a novel dual-wavelength laser using Neodymium, Gadolinium co-doped Yttrium Scandium Gallium Garnet (Nd, Gd:YSGG). This new laser material exhibits excellent performance in both continuous-wave and Q-switched operations.
Area of Science:
- Laser Physics
- Materials Science
- Solid-State Lasers
Background:
- Neodymium-doped laser crystals are widely used in various applications.
- Development of new laser materials is crucial for advancing laser technology.
- Yttrium Scandium Gallium Garnet (YSGG) is a promising host material for laser applications.
Purpose of the Study:
- To demonstrate a dual-wavelength laser utilizing a novel Nd, Gd:YSGG crystal.
- To evaluate the laser performance of the Nd, Gd:YSGG material.
- To explore the potential of Nd, Gd:YSGG for high-power and pulsed laser applications.
Main Methods:
- Fabrication and characterization of the Nd, Gd:YSGG laser crystal.
- Experimental setup for continuous-wave (CW) laser operation.
- Experimental setup for acousto-optic (AO) Q-switched laser operation.
- Optimization of laser parameters such as absorbed pump power and cavity configuration.
Main Results:
- Achieved a maximum CW output power of 10.1 W with a slope efficiency of nearly 60% at 808 nm.
- Demonstrated high segregation coefficient and antiradiation properties of the Nd, Gd:YSGG crystal.
- Obtained a maximum single pulse energy of 277 μJ and peak power of 4.6 kW (60 ns) in AO Q-switched operation.
Conclusions:
- The Nd, Gd:YSGG crystal is a promising new material for developing high-performance dual-wavelength lasers.
- The demonstrated laser exhibits excellent efficiency and power in both CW and pulsed modes.
- This new laser material holds potential for various scientific and industrial applications requiring efficient laser sources.
