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Published on: February 4, 2017
3-W continuous-wave diode-pumped 532-nm laser.
Optics Letters
|October 2, 2009
Summary
A continuous-wave diode-pumped neodymium-doped yttrium aluminum garnet (Nd:YAG) laser was mode-locked to produce 5.5 W of infrared output. Intracavity frequency doubling yielded 3 W of green, mode-locked laser light.
Area of Science:
- Optics and Photonics
- Laser Physics
- Nonlinear Optics
Background:
- Neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers are widely used for various applications.
- Mode-locking is a technique to produce ultrashort laser pulses.
- Intracavity frequency doubling is an efficient method for generating second-harmonic wavelengths.
Purpose of the Study:
- To demonstrate high-power, mode-locked operation of a diode-pumped Nd:YAG laser.
- To achieve efficient second-harmonic generation (SHG) for visible laser output.
- To characterize the performance of the frequency-doubled laser system.
Main Methods:
- Utilized a continuous-wave (cw) diode-pumped Nd:YAG laser.
- Implemented mode-locking at a repetition rate of 80 MHz.
- Employed potassium titanyl phosphate (KTP) crystal for intracavity frequency doubling.
Main Results:
- Achieved 5.5 W of output power at 1.064 micrometers (infrared).
- Generated 3 W of mode-locked output power at 0.532 micrometers (green) via frequency doubling.
- Demonstrated efficient SHG with the KTP crystal.
Conclusions:
- The diode-pumped Nd:YAG laser system is capable of producing high-power, mode-locked infrared output.
- Intracavity frequency doubling using KTP is an effective method for generating visible, mode-locked laser light.
- This system offers a viable source for applications requiring high-power, pulsed green laser emission.
