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Updated: Feb 12, 2026
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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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Michelson mode selector for spectral range stabilization in a self-sweeping fiber laser
Optics Letters
|March 31, 2018
Summary
We stabilized spectral range in a self-sweeping laser using a fiber Bragg grating (FBG). This method significantly reduced wavelength fluctuations, improving laser performance for various applications.
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- Self-sweeping lasers offer tunable wavelength output.
- Controlling spectral dynamics is crucial for laser applications.
- Existing methods face challenges in spectral stability.
Purpose of the Study:
- To stabilize the spectral range of a self-sweeping laser.
- To investigate the impact of fiber Bragg gratings (FBGs) and interferometer parameters on laser spectral dynamics.
- To enhance the quality and reliability of self-sweeping laser operation.
Main Methods:
- Incorporation of a narrowband fiber Bragg grating (FBG) into the laser's output mirror.
- Utilizing a Michelson interferometer configuration.
- Systematic investigation of FBG reflectivity and optical path difference effects.
Main Results:
- Achieved broadband (over 16 nm) self-sweeping operation.
- Reduced start wavelength fluctuations by approximately 100 times (down to picometers).
- Reduced stop wavelength fluctuations by approximately 15 times (down to picometers).
Conclusions:
- FBG integration effectively stabilizes spectral range in self-sweeping lasers.
- Optimized Michelson interferometer parameters enhance spectral quality.
- The proposed method significantly improves laser performance and broadens application potential.
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