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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
Experimental realization of a mode-locked parabolic Raman fiber oscillator
Claude Aguergaray1, David Méchin, Vladimir Kruglov
1Department of Physics, Science Centre, University of Auckland, New Zealand. c.aguergaray@auckland.ac.nz
Optics Express
|July 1, 2010
Summary
This study demonstrates the first mode-locked fiber laser producing parabolic pulses (similaritons) at 1534 nm. These pulses can be compressed to 6 ps, showing potential for various laser applications.
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- Mode-locked fiber lasers are crucial for generating ultrashort optical pulses.
- Similaritons, or parabolic pulses, offer unique properties for laser applications.
- Achieving parabolic pulse generation in fiber lasers at specific wavelengths is an ongoing research area.
Purpose of the Study:
- To demonstrate the first mode-locked fiber laser generating parabolic pulses (similaritons).
- To investigate the characteristics of these similariton pulses.
- To achieve significant pulse compression of the generated similaritons.
Main Methods:
- Utilized a fiber laser cavity incorporating a Raman-based gain medium.
- Operated the laser at a wavelength of 1534 nm.
- Employed linear recompression techniques to shorten pulse duration.
Main Results:
- Successfully generated parabolic pulses (similaritons) with a true parabolic shape in both time and spectral domains.
- Achieved an output pulse energy of 22 nJ.
- Demonstrated linear recompression to obtain 6 ps compressed pulses with a compression factor of 75.
Conclusions:
- The developed Raman-based fiber laser is the first to deliver mode-locked parabolic pulses (similaritons).
- The generated similaritons exhibit linear chirp, enabling efficient pulse compression.
- The Raman gain medium offers potential for similariton generation at diverse wavelengths.
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