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A tunable erbium-doped fiber ring laser with power-equalized output
Optics Express
|June 18, 2009
Summary
We developed a tunable erbium-doped fiber ring laser with a power-equalized output. This laser achieves a flatter lasing wavelength across a broad tuning range without complex adjustments.
Area of Science:
- Photonics and Optical Engineering
- Laser Physics
- Fiber Optics
Background:
- Fiber ring lasers are crucial for various applications.
- Achieving stable, tunable, and power-equalized output remains a challenge.
- Erbium-doped fiber lasers offer specific wavelength capabilities.
Purpose of the Study:
- To propose and demonstrate a novel tunable erbium-based fiber ring laser.
- To achieve power-equalized output across a wide wavelength range.
- To investigate the laser's performance characteristics.
Main Methods:
- Integration of a mode-restricting intracavity fiber Fabry-Perot tunable filter (FFP-TF).
- Utilizing an erbium-doped fiber as the gain medium in a ring resonator.
- Experimental characterization of output power, wavelength tuning, and side-mode suppression ratio (SMSR).
Main Results:
- Demonstration of a tunable laser oscillation.
- Achieved a flatter lasing wavelength in the operating range of 1533.3 to 1574.6 nm.
- Evaluated output power, wavelength tuning range, and SMSR.
Conclusions:
- The proposed fiber ring laser design enables tunable and power-equalized operation.
- The FFP-TF effectively guarantees tunable laser oscillation.
- The laser system shows promising performance for applications requiring stable, broadband tunable light sources.
