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Periodic pulse oscillation in an intracavity-doubled Nd:YVO(4) laser
Applied Optics
|December 4, 2010
Summary
Periodic pulse oscillation in an intracavity-doubled Neodymium-doped Yttrium Orthovanadate (Nd:YVO4) laser was observed. This oscillation nearly doubled the green-light output power compared to continuous wave operation.
Area of Science:
- Laser Physics
- Nonlinear Optics
- Solid-State Lasers
Background:
- Intracavity-doubled lasers are crucial for generating visible light.
- Neodymium-doped Yttrium Orthovanadate (Nd:YVO4) lasers are widely used solid-state laser sources.
- Understanding mode dynamics is essential for optimizing laser performance.
Purpose of the Study:
- To report and investigate the phenomenon of periodic pulse oscillation in an intracavity-doubled Nd:YVO4 laser.
- To explore the potential for improving green-light output power using this oscillation.
- To analyze the underlying cause of the observed pulse oscillation.
Main Methods:
- Experimental setup of an intracavity-doubled Nd:YVO4 laser.
- Observation and characterization of periodic pulse oscillation.
- Comparison of green-light power under pulsed oscillation versus continuous wave (CW) operation.
- Analysis of mode competition leading to pulse oscillation.
Main Results:
- Periodic pulse oscillation was successfully observed in the intracavity-doubled Nd:YVO4 laser.
- The pulse oscillation arises from the alternate dominance of two distinct laser modes.
- Average green-light power was approximately doubled under pulsed oscillation compared to CW operation at equivalent pumping levels.
Conclusions:
- Periodic pulse oscillation is a viable mechanism for enhancing green-light output power in Nd:YVO4 lasers.
- This phenomenon, driven by mode competition, offers a significant power improvement over conventional CW operation.
- Further research into controlling pulse oscillation could lead to more efficient green laser systems.
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