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High-peak-power pulse generation from a monolithic master oscillator power amplifier at 1.5 μm
P Adamiec1, B Bonilla, A Consoli
1Universidad Politécnica de Madrid, ETSI Telecomunicación-CEMDATIC, Ciudad Universitaria, Madrid, Spain. pawel.adamiec@tfo.upm.es
Applied Optics
|October 24, 2012
Summary
Researchers generated high-peak-power, short optical pulses using a master-oscillator power-amplifier. This integrated device achieved 2.7 W output at 1.5 μm, demonstrating efficient short pulse generation for potential applications.
Area of Science:
- Photonics and Optical Engineering
- Semiconductor Device Physics
Background:
- Integrated photonics enables compact optical systems.
- Master-oscillator power-amplifier (MOPA) architectures are crucial for high-power light generation.
Purpose of the Study:
- To experimentally investigate the generation of high-peak-power short optical pulses from an integrated MOPA at 1.5 μm.
- To analyze the static and dynamic characteristics of the MOPA under varying driving conditions.
Main Methods:
- Gain switching a master oscillator within a MOPA configuration.
- Characterization of optical pulse duration, peak power, and device behavior.
- Analysis of power-current characteristics and mode hopping phenomena.
Main Results:
- Achieved high-peak-power (2.7 W) optical pulses with short duration (100 ps).
- Identified mode hopping as the cause for ripples in power-current characteristics under continuous wave (cw) conditions.
- Demonstrated convenient generation of gigahertz frequency trains of single-mode short optical pulses.
Conclusions:
- Integrated MOPAs are effective for generating high-peak-power short optical pulses.
- Understanding and mitigating compound cavity effects are key for optimizing device performance.
- The demonstrated MOPA is suitable for generating high-repetition-rate, single-mode optical pulse trains.
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