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Tunable visible solid-state lasers based on second-harmonic generation of LiF:F(2) in potassium titanyl phosphate
Optics Letters
|December 18, 2007
Summary
A new tunable solid-state laser generates visible light between 550-610 nm using lithium fluoride (LiF) lasers and potassium titanyl phosphate. This system achieved 20% conversion efficiency for visible laser light generation.
Area of Science:
- Optics and Photonics
- Solid-State Lasers
- Nonlinear Optics
Background:
- Solid-state lasers offer advantages in tunability and robustness.
- Visible laser generation is crucial for various applications, including spectroscopy and imaging.
- Intracavity frequency doubling is a common technique for generating shorter wavelengths from lasers.
Purpose of the Study:
- To report a new broadly tunable visible solid-state laser.
- To demonstrate efficient second-harmonic generation in the visible spectrum.
- To optimize laser parameters for enhanced performance.
Main Methods:
- Utilized room-temperature pulsed lithium fluoride (LiF:F(2)(-)) lasers.
- Employed intracavity frequency doubling.
- Used potassium titanyl phosphate (KTP) as the nonlinear optical crystal.
- Tuned and free-running laser operation was investigated.
Main Results:
- Achieved broadly tunable visible laser output between 550 and 610 nm.
- Generated second-harmonic energy of 1.3 mJ.
- Demonstrated a fundamental-to-second-harmonic conversion efficiency of 20%.
Conclusions:
- A novel broadly tunable visible solid-state laser system has been successfully developed.
- The demonstrated efficiency highlights the potential of this approach for visible light generation.
- Optimization of LiF:F(2)(-) laser parameters is key to maximizing performance.
