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Published on: April 28, 2016
1.6 W continuous-wave Raman laser using low-loss synthetic diamond
Walter Lubeigt1, Vasili G Savitski, Gerald M Bonner
1Institute of Photonics, University of Strathclyde, SUPA, Glasgow, UK. walter.lubeigt@strath.ac.uk
Optics Express
|April 1, 2011
Summary
Synthetic diamond was used in a continuous-wave (CW) Raman laser, achieving 1.6 W output power. This demonstrates the potential of low-birefringence diamond for efficient laser applications.
Area of Science:
- Laser Physics
- Materials Science
Background:
- Synthetic diamond offers unique optical properties for laser applications.
- Low-birefringence and low-loss diamond are crucial for efficient laser operation.
Purpose of the Study:
- To investigate the performance of a continuous-wave (CW) Raman laser utilizing single-crystal, synthetic diamond.
- To evaluate the output power and efficiency of the diamond Raman laser system.
Main Methods:
- Intracavity pumping of a CW Raman laser using a Nd:YVO4 laser.
- Utilizing low-birefringence (Δn<2x10(-6)) and low-loss (absorption coefficient <0.006 cm(-1) at 1064 nm) synthetic diamond as the Raman medium.
Main Results:
- Achieved 1.6 W CW output power at a Raman laser wavelength of 1240 nm.
- Measured a slope efficiency of ~18% with respect to absorbed diode-laser pump power (808 nm).
- Observed maximum on-time output powers of 2.8 W in quasi-CW operation with a slope efficiency of ~24%.
Conclusions:
- Single-crystal, synthetic diamond is a viable material for efficient CW Raman lasers.
- The demonstrated performance highlights the potential for high-power laser generation using diamond-based systems.
