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High-gain erbium silicate waveguide amplifier and a low-threshold, high-efficiency laser
Optics Express
|August 19, 2018
Summary
This study models erbium silicate nanowires for silicon photonics. Optimized designs yield high-gain waveguide amplifiers and efficient, low-threshold lasers, showing potential for integrated photonic devices.
Area of Science:
- Photonics
- Materials Science
- Quantum Electronics
Background:
- Erbium-doped materials are crucial for silicon photonics light sources.
- Erbium silicate nanowires exhibit high net gain due to concentration and material quality.
Purpose of the Study:
- To develop a comprehensive theoretical model for erbium silicate nanowires.
- To optimize waveguide amplifiers and lasers using this model.
- To analyze the impact of energy transfer and amplified spontaneous emission.
Main Methods:
- Established a theoretical model for erbium silicate nanowires.
- Analyzed nanowire properties, including optical gain.
- Optimized waveguide amplifier and laser designs considering various physical phenomena.
Main Results:
- Simulated a waveguide amplifier with gain > 20 dB/mm.
- Modeled a laser with a 3.3 mW threshold and 50% power-conversion efficiency.
- Simulation results showed agreement with prior experimental data.
Conclusions:
- Erbium silicate materials offer significant optical gains.
- Optimized designs demonstrate potential for integrated amplifiers and lasers.
- These materials are promising for scale-integrated photonic applications.
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