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Multi-kW peak power acousto-optically tunable thulium-doped fiber laser system
Optics Express
|April 4, 2015
Summary
We developed a novel Q-switched thulium-doped fiber laser offering 100 nm tunability without moving parts. This high-peak-power laser is ideal for advanced mid-IR parametric devices.
Area of Science:
- Fiber laser technology
- Nonlinear optics
- Laser engineering
Background:
- Thulium-doped fiber lasers are crucial for generating specific wavelengths.
- Q-switching enables high peak power pulses.
- Tunability is essential for applications like spectroscopy and frequency conversion.
Purpose of the Study:
- To demonstrate a core-pumped Q-switched thulium-doped fiber laser.
- To achieve fast, wide tunability without mechanical components.
- To assess its suitability for pumping mid-IR parametric devices.
Main Methods:
- Utilizing a core-pumped configuration for efficient energy transfer.
- Implementing Q-switching for pulsed operation.
- Employing a thulium-doped fiber gain medium.
- Characterizing the laser's tunability and output power.
Main Results:
- Achieved fast tunability over a 100 nm range.
- Generated a diffraction-limited beam with up to 7 kW peak power.
- Demonstrated a system without any movable parts for tuning.
Conclusions:
- The developed fiber laser system offers a robust and agile light source.
- Its performance makes it highly suitable for pumping mid-infrared (mid-IR) parametric oscillators and amplifiers.
- This technology advances capabilities in tunable mid-IR generation.
