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Analysis of high-frequency oscillations in mutually-coupled nano-lasers
Optics Express
|May 3, 2018
Summary
Mutually coupled nano-lasers exhibit stable, high-frequency oscillations (around 100 GHz) due to reduced carrier lifetimes. These stable oscillations, influenced by coupling factors and bias currents, are promising for photonic integrated circuits.
Area of Science:
- Photonics
- Quantum Optics
- Semiconductor Lasers
Background:
- Nano-lasers are crucial components in modern photonics.
- Understanding the dynamics of coupled laser systems is essential for advanced optical applications.
Purpose of the Study:
- To analyze the dynamics of mutually coupled nano-lasers.
- To investigate the generation and stability of high-frequency oscillations in these systems.
Main Methods:
- Utilized rate equations to model nano-laser dynamics.
- Incorporated Purcell factor (F) and spontaneous emission coupling factor (β).
Main Results:
- Observed stable, small-amplitude oscillations at approximately 100 GHz.
- Linked oscillation frequency to linear dependence on frequency detuning and bias current.
- Demonstrated that higher Purcell and coupling factors reduce carrier lifetime, enabling oscillations.
Conclusions:
- Mutually coupled nano-lasers can generate stable, high-frequency oscillations.
- These findings suggest potential applications in photonic integrated circuits.
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