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Electronically tunable, 1.55-microm erbium-doped fiber laser
Optics Letters
|September 18, 2009
Summary
This study demonstrates an electronically tunable erbium-doped fiber laser. It achieved tuning across two distinct wavelength ranges with over 13 mW maximum power using an acousto-optic modulator.
Area of Science:
- Photonics and Optical Engineering
- Laser Physics
- Materials Science
Background:
- Fiber lasers offer versatile light sources.
- Erbium-doped silica fibers are crucial for near-infrared applications.
- Electronic tuning provides precise wavelength control.
Purpose of the Study:
- To develop and characterize an electronically tunable fiber laser.
- To investigate the performance of an acousto-optic tuning element.
- To determine the laser's tuning ranges and power output.
Main Methods:
- Utilized an erbium-doped, silica-based fiber laser.
- Incorporated an intracavity acousto-optic modulator (Bragg cell) for tuning.
- Configured the Bragg cell to feedback the first-order, frequency-shifted deflected beam.
- Electronically controlled the laser's wavelength output.
Main Results:
- Achieved electronic tuning over two distinct ranges: 1529.6–1533.3 nm and 1543.8–1563.0 nm.
- Obtained a maximum output power exceeding 13 mW.
- Measured a maximum optical/acoustic tuning coefficient of -15 nm/MHz.
Conclusions:
- The developed fiber laser system demonstrates effective electronic tunability.
- The acousto-optic modulator serves as a reliable tuning element for fiber lasers.
- The results highlight the potential for precise wavelength control in erbium-doped fiber lasers.
