Related Experiment Video
Updated: Jun 24, 2025
08:48
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
7.5K
Ag/MXene as Saturable Absorber for Tm:Ho Co-Doped Q-Switched Fiber Laser
Xiaoli Zhao1, Jingxuan Sun1, Yachen Wang1
1Key Laboratory of Precision Opto-Mechatronics Technology, School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China.
Nanomaterials (Basel, Switzerland)
|June 13, 2024
Summary
A novel Ag/MXene composite was used as a saturable absorber in a Q-switched fiber laser, achieving stable 2 µm pulse generation. This material demonstrates excellent performance for ultrafast laser applications.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Q-switched fiber lasers are crucial for generating high-energy pulses.
- Saturable absorbers with nonlinear optical properties are key components for passive modulation.
- Ag/MXene composites offer broadband nonlinear response and high modulation depth.
Purpose of the Study:
- To demonstrate a Q-switched Tm:Ho co-doped fiber laser operating at 2 µm.
- To utilize an Ag/MXene composite as a saturable absorber for pulse generation.
- To investigate the performance and stability of the developed laser system.
Main Methods:
- Fabrication of a Q-switched Tm:Ho co-doped fiber laser.
- Integration of an Ag/MXene composite as a saturable absorber.
- Characterization of laser output including spectrum, pulse train, radio frequency spectrum, and long-term stability.
- Investigation of pump power influence on Q-switched pulse parameters.
Main Results:
- Stable Q-switched pulses were generated at 2 µm with a high signal-to-noise ratio (60 dB).
- The laser exhibited long-term stability over 2 hours with maintained central wavelength and output power.
- Pulse width decreased, while repetition rate, output power, and single pulse energy increased with rising pump power.
- The Ag/MXene composite demonstrated robust saturable absorption properties.
Conclusions:
- The Ag/MXene composite is a highly effective saturable absorber for Q-switched fiber lasers.
- The developed 2 µm fiber laser shows potential for generating high-performance ultrafast pulses.
- The findings highlight the suitability of Ag/MXene for advanced laser applications.
