10-W pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence

High-power broad area substrate emitting photonic-crystal distributed feedback (DFB) quantum cascade lasers (QCLs) emitting around 4.73 μm is reported. Two-dimensional centered rectangular photonic-crystal (CRPC) grating is introduced to enhance optical coherence in large area device. Main lobe far-...

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Autores principales: Yao, Dan-Yang, Zhang, Jin-Chuan, Cathabard, Olivier, Zhai, Shen-Qiang, Liu, Ying-Hui, Jia, Zhi-Wei, Liu, Feng-Qi, Wang, Zhan-Guo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2015
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4402689/
https://www.ncbi.nlm.nih.gov/pubmed/25977652
http://dx.doi.org/10.1186/s11671-015-0877-4
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author Yao, Dan-Yang
Zhang, Jin-Chuan
Cathabard, Olivier
Zhai, Shen-Qiang
Liu, Ying-Hui
Jia, Zhi-Wei
Liu, Feng-Qi
Wang, Zhan-Guo
author_facet Yao, Dan-Yang
Zhang, Jin-Chuan
Cathabard, Olivier
Zhai, Shen-Qiang
Liu, Ying-Hui
Jia, Zhi-Wei
Liu, Feng-Qi
Wang, Zhan-Guo
author_sort Yao, Dan-Yang
collection PubMed
description High-power broad area substrate emitting photonic-crystal distributed feedback (DFB) quantum cascade lasers (QCLs) emitting around 4.73 μm is reported. Two-dimensional centered rectangular photonic-crystal (CRPC) grating is introduced to enhance optical coherence in large area device. Main lobe far-field radiation pattern with a very small divergence angle of about 0.65° × 0.31° is obtained. A record peak output power for vertical emitting QCLs exceeding 10 W is obtained with high reflectivity (HR) coating. Robust single longitudinal mode emission with a side mode suppression ratio (SMSR) of 30 dB is continuously tunable by the heat sink temperature up to 65°C.
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spelling pubmed-44026892015-05-14 10-W pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence Yao, Dan-Yang Zhang, Jin-Chuan Cathabard, Olivier Zhai, Shen-Qiang Liu, Ying-Hui Jia, Zhi-Wei Liu, Feng-Qi Wang, Zhan-Guo Nanoscale Res Lett Nano Express High-power broad area substrate emitting photonic-crystal distributed feedback (DFB) quantum cascade lasers (QCLs) emitting around 4.73 μm is reported. Two-dimensional centered rectangular photonic-crystal (CRPC) grating is introduced to enhance optical coherence in large area device. Main lobe far-field radiation pattern with a very small divergence angle of about 0.65° × 0.31° is obtained. A record peak output power for vertical emitting QCLs exceeding 10 W is obtained with high reflectivity (HR) coating. Robust single longitudinal mode emission with a side mode suppression ratio (SMSR) of 30 dB is continuously tunable by the heat sink temperature up to 65°C. Springer US 2015-04-14 /pmc/articles/PMC4402689/ /pubmed/25977652 http://dx.doi.org/10.1186/s11671-015-0877-4 Text en © Yao et al.; licensee Springer. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.
spellingShingle Nano Express
Yao, Dan-Yang
Zhang, Jin-Chuan
Cathabard, Olivier
Zhai, Shen-Qiang
Liu, Ying-Hui
Jia, Zhi-Wei
Liu, Feng-Qi
Wang, Zhan-Guo
10-W pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence
title 10-W pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence
title_full 10-W pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence
title_fullStr 10-W pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence
title_full_unstemmed 10-W pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence
title_short 10-W pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence
title_sort 10-w pulsed operation of substrate emitting photonic-crystal quantum cascade laser with very small divergence
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4402689/
https://www.ncbi.nlm.nih.gov/pubmed/25977652
http://dx.doi.org/10.1186/s11671-015-0877-4
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