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Updated: Jun 19, 2026
14:18
Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
Published on: February 28, 2016
Passive mode locking with an active nonlinear directional coupler: positive group-velocity dispersion
Optics Letters
|October 6, 2009
Summary
We demonstrate a novel active nonlinear coupler laser capable of generating picosecond pulse trains in dual-core fiber lasers. These pulses, characterized by a linear chirp, can be compressed to subpicosecond durations.
Area of Science:
- Optics and Photonics
- Laser Physics
- Nonlinear Optics
Background:
- Fiber lasers are crucial for various applications.
- Generating ultrashort optical pulses is a key area of research.
- Nonlinear optical phenomena enable advanced laser functionalities.
Purpose of the Study:
- To investigate the performance of an active nonlinear coupler laser.
- To demonstrate the generation of picosecond pulse trains.
- To explore the potential for subpicosecond pulse generation.
Main Methods:
- Utilizing an active nonlinear coupler laser design.
- Operating in dual-core fiber lasers with positive group-velocity dispersion.
- Characterizing pulse properties using optical measurements.
Main Results:
- Successfully produced picosecond pulse trains.
- Identified pulses as linearly chirped solitons.
- Confirmed the suitability for extracavity chirp compensation.
Conclusions:
- The active nonlinear coupler laser is effective for generating picosecond pulses.
- Linear chirp is a key characteristic enabling further pulse compression.
- This technology holds promise for achieving subpicosecond pulse widths.
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