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Wavelength-Tunable L-Band High Repetition Rate Erbium-Doped Fiber Laser Based on Dissipative Four-Wave Mixing
Kai Li1, Qianqian Huang1, Junjie Jiang1
1Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China.
A novel L-band fiber laser achieves high repetition rate (HRR) operation using dissipative four-wave mixing. This tunable laser generates soliton trains, offering potential for high-speed communication and sensing applications.
Area of Science:
- Photonics
- Fiber Optics
- Nonlinear Optics
Background:
- High repetition rate (HRR) lasers are crucial for advanced applications.
- Erbium-doped fiber lasers operating in the L-band offer unique spectral properties.
- Dissipative four-wave mixing (DFWM) is a nonlinear phenomenon enabling novel laser functionalities.
Purpose of the Study:
- To demonstrate a wavelength-tunable, high repetition rate (HRR) erbium-doped fiber laser operating in the L-band.
- To investigate the generation of soliton trains using the dissipative four-wave mixing (DFWM) mechanism.
- To explore the wavelength-tuning capabilities of the developed fiber laser system.
Main Methods:
- Utilized an erbium-doped fiber laser cavity incorporating a Lyot filter for repetition rate control.
- Employed the dissipative four-wave mixing (DFWM) mechanism to achieve laser operation.
- Adjusted polarization controllers to enable wavelength-tuning of the generated soliton states.
Main Results:
- Achieved a fixed repetition rate of approximately 126 GHz, determined by the Lyot filter's free spectral range.
- Demonstrated the generation of both single-soliton and bound-soliton trains.
- Obtained a wide wavelength-tuning range of ~38.3 nm for the single-soliton state and ~22.6 nm for the bound-soliton state.
Conclusions:
- The developed L-band fiber laser successfully integrates wavelength tunability with high repetition rate operation.
- The dissipative four-wave mixing (DFWM) approach provides an effective method for generating tunable soliton trains.
- This laser serves as a valuable reference for tunable fiber lasers and has potential applications in high-speed communication and sensing.
