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Multicolour nonlinearly bound chirped dissipative solitons
Sergey A Babin1, Evgeniy V Podivilov1, Denis S Kharenko1
11] Institute of Automation and Electrometry, SB RAS, Novosibirsk 630090, Russia [2] Novosibirsk State University, Novosibirsk 630090, Russia.
We demonstrate a new method to create high-energy femtosecond laser pulses by forming a coherent Raman dissipative soliton. This technique enhances pulse energy and spectral bandwidth for advanced laser applications.
Area of Science:
- Laser Physics
- Nonlinear Optics
- Fiber Optics
Background:
- Dissipative solitons are advanced for high-energy femtosecond pulse generation in mode-locked lasers.
- Stimulated Raman scattering can create noisy pulses, limiting energy in fiber lasers.
Purpose of the Study:
- To investigate the formation of coherent Raman dissipative solitons.
- To enhance the energy and spectral properties of femtosecond laser pulses.
Main Methods:
- Intracavity feedback by re-injecting Raman pulses into the laser cavity.
- Mode-locked fiber laser system.
Main Results:
- Formation of a coherent Raman dissipative soliton.
- Creation of a two (three)-color stable complex of dissipative and Raman dissipative solitons.
- Achieved higher total energy and broader spectrum compared to conventional dissipative solitons.
Conclusions:
- Intracavity feedback enables coherent Raman dissipative soliton formation.
- This approach offers enhanced pulse energy and spectral width.
- Potential applications in spectroscopy, optical communications, and microscopy.
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