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Ultrafast injection-locked amplification in a thin-film distributed feedback microcavity
1Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, P. R. China. zhangxinping@bjut.edu.cn.
Nanoscale
|February 10, 2017
Summary
We demonstrate an ultrafast injection-locked amplifier using femtosecond supercontinuum pulses in a polymer-coated DFB microcavity. This miniaturized laser device offers picosecond timescale amplification and a 1 nm bandwidth for diverse applications.
Area of Science:
- Photonics and Laser Technology
- Nanoscale Photonic Devices
Background:
- Injection mode locking is crucial for high-performance laser sources.
- This technique has not been applied to thin-film distributed feedback (DFB) lasers using nanoscale photonic structures.
Purpose of the Study:
- To demonstrate the first ultrafast injection-locked amplifier in a DFB microcavity.
- To develop a miniaturized and easily integratable laser device.
Main Methods:
- Injecting femtosecond supercontinuum pulses into a polymer-coated DFB microcavity.
- Utilizing nanoscale photonic structures for laser amplification.
Main Results:
- Achieved picosecond timescale amplification.
- Obtained a laser beam with a 1 nm bandwidth.
- Demonstrated excellent transverse mode and easy recollimation.
Conclusions:
- Successfully implemented injection mode locking in a DFB microcavity.
- Introduced a compact laser device suitable for near-field and far-field applications.
