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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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All-fiber periodically Q-switched laser.
Matthew T Fellew1, Graham E Town
1MQ Photonics Research Centre, Department of Physics and Engineering, Macquarie University, Sydney, New South Wales 2109, Australia. Matthew.Fellew@mq.edu.au
Applied Optics
|August 25, 2010
Summary
Researchers developed a simple Q-switching technique for erbium fiber lasers by manipulating fiber alignment. This novel loss switching method enables efficient Q-switched laser operation and allows analysis of different configurations.
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- Erbium fiber lasers are crucial for various applications.
- Q-switching is a technique to achieve high-peak-power laser pulses.
- Traditional Q-switching methods can be complex.
Purpose of the Study:
- To adapt a linear cavity erbium fiber laser into a Q-switched laser.
- To introduce and evaluate a novel, simple loss switching technique.
- To analyze the effectiveness of different Q-switch configurations and their opening times.
Main Methods:
- Utilizing the flexibility of optical fiber for rapid misalignment.
- Implementing a loss switching technique by driving the fiber end in and out of alignment with a cavity mirror.
- Investigating various Q-switch configurations.
Main Results:
- Successfully adapted a linear cavity erbium fiber laser for Q-switched operation.
- Demonstrated a simple and effective loss switching technique.
- Analyzed the Q-switch opening time for different configurations.
Conclusions:
- The proposed loss switching technique is a viable method for Q-switching erbium fiber lasers.
- The inherent flexibility of optical fiber can be leveraged for efficient Q-switching.
- Further analysis of configurations provides insights into optimizing Q-switched laser performance.
