Chaos Suppression in Optically Injected Semiconductor Lasers Through an Unequally Spaced Optical Frequency Comb

Photonics, Journal Year: 2025, Volume and Issue: 12(4), P. 357 - 357

Published: April 10, 2025

This study theoretically investigates the impact of comb spacing irregularity on dynamics optically injected semiconductor lasers using a rate equation model. Bifurcation analysis, time-domain simulations, spectral properties, and Mode Suppression Ratio (MSR) calculations reveal that equal induces strong mode competition chaos, while unequal suppresses chaos enhances stability. Interestingly, Flipped exhibits similar behavior to comb, further supporting conclusion relative spacing—not order—governs stability Arbitrary combs, though lacking structured spacing, demonstrate intermediate suppression, indicating breaking uniformity mitigates instability, but optimal maximizes stabilization. Extending beyond previous studies frequency injection, this work identifies as key mechanism for control, offering new strategies laser stabilization in optical communications photonic integration.

Language: Английский

Quantum cascade disk and ring lasers

Applied Physics Letters, Journal Year: 2024, Volume and Issue: 124(1)

Published: Jan. 1, 2024

Quantum cascade lasers (QCLs) are a prominent semiconductor laser source operating in the mid-infrared and terahertz regimes. As is typical with lasers, QCLs usually monolithically integrate active gain material resonator. Hence, over nearly 30 years of QCL development, resonator geometries have developed alongside region designs. Disk ring geometries, particular, long been recognized for their unique attributes, which have, turn, contributed to demonstration ultra-small cavities as well surface emission from QCLs. In recent years, witnessed resurgence promising platforms frequency comb soliton generation photonic integration. this Perspective, we describe attributes that make disk by discussing key demonstrations. We present results, indicate these devices poised become building blocks highly integrated, next-generation spectrometers mid-infrared. discuss avenues future research centered around monolithic disk-type applications ranging gas sensing spectroscopy quantum optics non-Hermitian photonics.

Language: Английский

Frequency pushing and pulling in semiconductor lasers subject to optical frequency comb injection

Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102812 - 102812

Published: Sept. 1, 2024

Language: Английский