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Wide-temperature-range operation of quantum-dot LC-DFB lasers from -40°C to 110°C.

PubMed
Authors: Yang B, Wang T, Wang Z, Zhang J

Year

2026

Paper ID

48652

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

74

Citations

0

Abstract

By optimizing the grating period and adopting a high-temperature-tolerant p-doped quantum-dot (QD) laser structure, we demonstrate an O-band laterally coupled distributed feedback (LC-DFB) laser exhibiting stable single-longitudinal-mode operation over an extended temperature range. The device maintains an SMSR greater than 50 dB and shows a threshold current variation of only 7.7 mA from -40°C to 90°C. Single-mode lasing is further sustained up to 110°C, highlighting the excellent thermal robustness of the proposed QD LC-DFB design.

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  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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  • By optimizing the grating period and adopting a high-temperature-tolerant p-doped quantum-dot (QD) laser structure, we demonstrate an O-band laterally coupled distributed...

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References & Citation Signals

[1] DOI https://doi.org/10.1364/OL.589907 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/41920668/

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External citation index: OpenAlex citation signal • updated 2026-06-12 13:58:18

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