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Characterization and adaptive compression of a multi-soliton laser source
Optics Express
|January 14, 2017
Summary
Generating ultrashort pulses near 1600 nm is crucial for deep-tissue imaging. This study demonstrates sub-30 femtosecond pulse generation using a novel photonic-crystal fiber rod and pulse compression techniques.
Area of Science:
- Optics and Photonics
- Biomedical Imaging Technologies
Background:
- Ultrashort pulse generation at 1600 nm is essential for advanced deep-tissue biomedical imaging.
- Existing methods face challenges in achieving the required pulse durations and spectral bandwidths.
Purpose of the Study:
- To characterize and adaptively compress multi-soliton output from a large-mode area photonic-crystal fiber rod.
- To generate sub-30 femtosecond pulses for deep-tissue imaging applications.
Main Methods:
- Utilized a large-mode area photonic-crystal fiber rod to generate multi-soliton output spanning over 300 nm.
- Employed individual soliton compression followed by coherent pulse combination.
- Conducted simulations and amplitude/phase coherence measurements.
Main Results:
- Achieved sub-30 femtosecond (fs) pulse durations.
- Successfully generated ultrashort pulses in the 1600 nm region.
- Demonstrated the feasibility of coherent combination of temporally separated solitons.
Conclusions:
- The developed method enables efficient generation of ultrashort pulses for deep-tissue imaging.
- The photonic-crystal fiber rod approach offers a robust platform for generating broadband ultrashort pulses.
- Coherent pulse combination is a viable strategy for enhancing pulse characteristics.
