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Open Quantum Systems Decoherence Photonic Quantum Computing

Temperature-stable quantum-dot semiconductor optical amplifier for fixed-wavelength applications using multiwavelength gain compensation.

PubMed
Authors: Kamata Y, Nishi K, Naruke T, Onishi Y, Takemasa K, Tarumi H, Kato T, Oyama K

Year

2026

Paper ID

30161

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

92

Citations

1

Abstract

We propose a semiconductor optical amplifier that uses multiple quantum-dot layers with different emission wavelengths to suppress temperature-induced gain variation under a fixed operating current and wavelength. Upon engineering the gain spectrum to offset temperature-driven spectral shifts, the device achieves stable amplification without requiring active temperature control or bias-current adjustment. Experimental measurements show that the gain variation remains within 0.8-0.9 dB over a wide temperature range from 10°C to 85°C. This passive stabilization capability enables reliable operation across harsh outdoor environments, making the device well-suited for LiDAR and outdoor optical communication systems.

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  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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  • We propose a semiconductor optical amplifier that uses multiple quantum-dot layers with different emission wavelengths to suppress temperature-induced gain variation under a...

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References & Citation Signals

[1] DOI https://doi.org/10.1364/OL.587923 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/41824721/

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External citation index: OpenAlex citation signal • updated 2026-11-04 08:08:21

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