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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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High-repetition-rate, multi-pulse all-normal-dispersion fiber laser
Optics Letters
|September 16, 2017
Summary
This study presents a novel fiber laser using dissipative Faraday instability for pulse generation. It generates controllable, quasi-parabolic pulses in the all-normal-dispersion regime, offering tunable repetition rates.
Area of Science:
- Photonics
- Laser Physics
- Nonlinear Optics
Background:
- Fiber lasers are crucial for various applications.
- Understanding pulse generation mechanisms is key to laser design.
- Dissipative instabilities offer new routes for pulsed laser operation.
Purpose of the Study:
- To present a fiber laser exploiting dissipative Faraday instability for pulse generation.
- To numerically investigate the dynamics of this novel laser.
- To analyze pulse stability and operational regimes.
Main Methods:
- Numerical simulations of laser dynamics.
- Analysis in the all-normal-dispersion regime.
- Investigation of lumped amplification schemes.
Main Results:
- Generation of a pulse train with quasi-parabolic shapes.
- Controllable repetition rates from 10 to 50 GHz.
- Demonstration of an ordered multi-pulse regime.
Conclusions:
- The dissipative Faraday instability is a viable mechanism for generating tunable pulsed fiber lasers.
- The proposed laser design offers control over pulse characteristics.
- Understanding the transition to random pulse operation is important for practical applications.
