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Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers
In the present work, an ultra-low power consumption substrate-emitting distributed feedback (DFB) quantum cascade laser (QCL) was developed. The continuous-wave (CW) threshold power dissipation is reduced to 0.43 W at 25 °C by shortening the cavity length to 0.5 mm and depositing high-reflectivity (...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5581747/ https://www.ncbi.nlm.nih.gov/pubmed/28866815 http://dx.doi.org/10.1186/s11671-017-2281-8 |
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author | Liu, Chuan-Wei Zhang, Jin-Chuan Jia, Zhi-Wei Zhuo, Ning Zhai, Shen-Qiang Wang, Li-Jun Liu, Jun-Qi Liu, Shu-Man Liu, Feng-Qi Wang, Zhan-Guo |
author_facet | Liu, Chuan-Wei Zhang, Jin-Chuan Jia, Zhi-Wei Zhuo, Ning Zhai, Shen-Qiang Wang, Li-Jun Liu, Jun-Qi Liu, Shu-Man Liu, Feng-Qi Wang, Zhan-Guo |
author_sort | Liu, Chuan-Wei |
collection | PubMed |
description | In the present work, an ultra-low power consumption substrate-emitting distributed feedback (DFB) quantum cascade laser (QCL) was developed. The continuous-wave (CW) threshold power dissipation is reduced to 0.43 W at 25 °C by shortening the cavity length to 0.5 mm and depositing high-reflectivity (HR) coating on both facets. As far as we know, this is the recorded threshold power dissipation of QCLs in the same conditions. Single-mode emission was achieved by employing a buried second-order grating. Mode-hop free emission can be observed within a wide temperature range from 15 to 105 °C in CW mode. The divergence angles are 22.5(o) and 1.94(o) in the ridge-width direction and cavity-length direction, respectively. The maximum optical power in CW operation was 2.4 mW at 25 °C, which is sufficient to spectroscopy applications. |
format | Online Article Text |
id | pubmed-5581747 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-55817472017-09-19 Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers Liu, Chuan-Wei Zhang, Jin-Chuan Jia, Zhi-Wei Zhuo, Ning Zhai, Shen-Qiang Wang, Li-Jun Liu, Jun-Qi Liu, Shu-Man Liu, Feng-Qi Wang, Zhan-Guo Nanoscale Res Lett Nano Express In the present work, an ultra-low power consumption substrate-emitting distributed feedback (DFB) quantum cascade laser (QCL) was developed. The continuous-wave (CW) threshold power dissipation is reduced to 0.43 W at 25 °C by shortening the cavity length to 0.5 mm and depositing high-reflectivity (HR) coating on both facets. As far as we know, this is the recorded threshold power dissipation of QCLs in the same conditions. Single-mode emission was achieved by employing a buried second-order grating. Mode-hop free emission can be observed within a wide temperature range from 15 to 105 °C in CW mode. The divergence angles are 22.5(o) and 1.94(o) in the ridge-width direction and cavity-length direction, respectively. The maximum optical power in CW operation was 2.4 mW at 25 °C, which is sufficient to spectroscopy applications. Springer US 2017-09-02 /pmc/articles/PMC5581747/ /pubmed/28866815 http://dx.doi.org/10.1186/s11671-017-2281-8 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Nano Express Liu, Chuan-Wei Zhang, Jin-Chuan Jia, Zhi-Wei Zhuo, Ning Zhai, Shen-Qiang Wang, Li-Jun Liu, Jun-Qi Liu, Shu-Man Liu, Feng-Qi Wang, Zhan-Guo Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers |
title | Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers |
title_full | Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers |
title_fullStr | Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers |
title_full_unstemmed | Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers |
title_short | Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers |
title_sort | low power consumption substrate-emitting dfb quantum cascade lasers |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5581747/ https://www.ncbi.nlm.nih.gov/pubmed/28866815 http://dx.doi.org/10.1186/s11671-017-2281-8 |
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