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Low cost active-active oscillator utilizing loss feedback control
Applied Optics
|June 18, 2010
Summary
A novel, low-cost phosphate glass laser oscillator was developed using active mode-locking and Q-switching. This system efficiently produces high-energy, picosecond pulses by employing an acousto-optic feedback system to control relaxation oscillations.
Area of Science:
- Laser Physics
- Materials Science
Background:
- Mode-locked and Q-switched lasers are crucial for various scientific applications.
- Phosphate glasses offer potential as laser gain media due to their properties.
Purpose of the Study:
- To develop a low-cost, actively mode-locked and Q-switched laser oscillator.
- To achieve high-energy pulse generation in the picosecond regime.
Main Methods:
- Construction of a phosphate glass laser oscillator.
- Implementation of active mode-locking and Q-switching techniques.
- Utilizing an acousto-optic feedback system to manage relaxation oscillations.
Main Results:
- The oscillator successfully produced pulses with durations ranging from 150 to 1000 picoseconds.
- High pulse energy was achieved.
- The acousto-optic feedback system effectively reduced the time for relaxation oscillations to decay.
Conclusions:
- A cost-effective, actively mode-locked and Q-switched phosphate glass laser oscillator has been successfully constructed.
- The developed system demonstrates efficient generation of high-energy picosecond pulses.
- The acousto-optic feedback mechanism is key to the oscillator's performance.
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