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Laser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels

Tunable whispering-gallery-mode (WGM) lasers have been paid lots of attention for their potential applications in the photonic field. Here, a tunable polymer WGM laser based on laser diode pumping is realized with a threshold of 0.43 MW/cm(2) per pulse. The WGM laser is realized by a microfluidic mi...

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Detalles Bibliográficos
Autores principales: Niu, Ben, Ge, Kun, Xu, Zhiyang, Shi, Xiaoyu, Guo, Dan, Zhai, Tianrui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8537490/
https://www.ncbi.nlm.nih.gov/pubmed/34685270
http://dx.doi.org/10.3390/polym13203511
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author Niu, Ben
Ge, Kun
Xu, Zhiyang
Shi, Xiaoyu
Guo, Dan
Zhai, Tianrui
author_facet Niu, Ben
Ge, Kun
Xu, Zhiyang
Shi, Xiaoyu
Guo, Dan
Zhai, Tianrui
author_sort Niu, Ben
collection PubMed
description Tunable whispering-gallery-mode (WGM) lasers have been paid lots of attention for their potential applications in the photonic field. Here, a tunable polymer WGM laser based on laser diode pumping is realized with a threshold of 0.43 MW/cm(2) per pulse. The WGM laser is realized by a microfluidic microcavity, which consists of a quartz capillary and gain materials. The laser performance keeps stable for a long time (3.5 h), pumped by a 50-ns 50 Hz laser diode with a pumping peak power density of 1.08 MW/cm(2) per pulse. The lasing wavelength can be tuned over 15 nm by changing the gain material concentration from 3.5 mg/mL to 12.5 mg/mL in the microfluidic channel. Moreover, the lasing mode can be switched between transverse magnetic (TM) and transverse electric (TE) modes by adjusting the pump polarization. These results provide the basis for designing nanophotonic devices with laser diode pumping.
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spelling pubmed-85374902021-10-24 Laser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels Niu, Ben Ge, Kun Xu, Zhiyang Shi, Xiaoyu Guo, Dan Zhai, Tianrui Polymers (Basel) Communication Tunable whispering-gallery-mode (WGM) lasers have been paid lots of attention for their potential applications in the photonic field. Here, a tunable polymer WGM laser based on laser diode pumping is realized with a threshold of 0.43 MW/cm(2) per pulse. The WGM laser is realized by a microfluidic microcavity, which consists of a quartz capillary and gain materials. The laser performance keeps stable for a long time (3.5 h), pumped by a 50-ns 50 Hz laser diode with a pumping peak power density of 1.08 MW/cm(2) per pulse. The lasing wavelength can be tuned over 15 nm by changing the gain material concentration from 3.5 mg/mL to 12.5 mg/mL in the microfluidic channel. Moreover, the lasing mode can be switched between transverse magnetic (TM) and transverse electric (TE) modes by adjusting the pump polarization. These results provide the basis for designing nanophotonic devices with laser diode pumping. MDPI 2021-10-13 /pmc/articles/PMC8537490/ /pubmed/34685270 http://dx.doi.org/10.3390/polym13203511 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Niu, Ben
Ge, Kun
Xu, Zhiyang
Shi, Xiaoyu
Guo, Dan
Zhai, Tianrui
Laser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels
title Laser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels
title_full Laser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels
title_fullStr Laser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels
title_full_unstemmed Laser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels
title_short Laser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels
title_sort laser diode pumped polymer lasers with tunable emission based on microfluidic channels
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8537490/
https://www.ncbi.nlm.nih.gov/pubmed/34685270
http://dx.doi.org/10.3390/polym13203511
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