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Highly efficient diode-pumped actively Q-switched Nd:YAG-SrWO(4) intracavity Raman laser.
Xiaohan Chen1, Xingyu Zhang, Qingpu Wang
1School of Information Science and Engineering, Shandong University, Jinan, China.
Optics Letters
|April 3, 2008
Summary
This study presents a highly efficient diode-pumped actively Q-switched intracavity Raman laser using strontium tungstate (SrWO4). It achieved a 23.8% optical conversion efficiency, demonstrating a significant advancement in laser technology.
Area of Science:
- Optics and Photonics
- Laser Physics
- Materials Science
Background:
- Diode-pumped solid-state lasers are crucial for various applications.
- Raman lasers offer unique wavelength-shifting capabilities.
- Strontium tungstate (SrWO4) is explored as a promising Raman-active medium.
Purpose of the Study:
- To develop a highly efficient diode-pumped actively Q-switched intracavity Raman laser.
- To investigate the performance of SrWO4 as a Raman gain medium.
- To achieve high diode-to-Stokes optical conversion efficiency.
Main Methods:
- Utilizing a diode-pumped actively Q-switched laser configuration.
- Employing SrWO4 as the intracavity Raman-active medium.
- Optimizing pump power and repetition rate for maximum efficiency.
Main Results:
- A highly efficient diode-pumped actively Q-switched intracavity Raman laser was successfully demonstrated.
- A diode-to-Stokes optical conversion efficiency of 23.8% was achieved.
- The laser operated at a pulse repetition rate of 15 kHz with 7.17 W incident pump power.
Conclusions:
- SrWO4 is an effective Raman-active medium for high-efficiency diode-pumped lasers.
- The developed laser design offers significant improvements in optical conversion efficiency.
- This work paves the way for advanced laser sources in spectroscopy and other fields.
