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Resonance transition 795-nm rubidium laser
William F Krupke1, Raymond J Beach, V Keith Kanz
1Lawrence Livermore National Laboratory, University of California, P.O. Box 808, Livermore, California 94551, USA. krupke3@aol.com
Optics Letters
|December 19, 2003
Summary
Researchers achieved continuous-wave laser oscillation at 795 nm using the rubidium atom's D1 transition. This rubidium laser demonstrated a 54% slope power efficiency, showing potential for efficient atomic vapor laser applications.
Area of Science:
- Atomic physics
- Laser science
- Quantum optics
Background:
- Population inversion is crucial for laser operation.
- Atomic vapor lasers offer unique spectral properties.
Purpose of the Study:
- To demonstrate continuous-wave laser oscillation on the rubidium D1 transition.
- To investigate the efficiency and performance of a three-level rubidium laser system.
Main Methods:
- Achieved population inversion between the 2P 1/2 and 2S 1/2 levels in rubidium.
- Utilized a titanium sapphire laser for pumping.
- Employed an end-pumped configuration for the rubidium laser.
Main Results:
- Demonstrated continuous-wave, three-level laser oscillation at 795 nm.
- Attained a slope power efficiency of 54% relative to absorbed pump power.
- Observed performance consistent with homogeneous broadening and modeled effects like ground-level depletion.
Conclusions:
- The study successfully demonstrated a rubidium D1 transition laser.
- The laser's performance aligns with theoretical models incorporating ground-level depletion and broad pump bandwidths.
- This work highlights the potential of atomic vapor lasers for specific applications.