Controlling the Performance of Polymer Lasers via the Cavity Coupling

Controlling the Performance of Polymer Lasers via the Cavity Coupling

The polarization and threshold of distributed feedback (DFB) polymer lasers were controlled by adjusting the cavity coupling. The cavity of DFB polymer lasers consisted of two gratings, which was fabricated by a two-beam multi-exposure holographic technique. The coupling strength of the cavity modes...

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Main Authors: Shuai Zhang, Junhua Tong, Chao Chen, Fengzhao Cao, Chengbin Liang, Yanrong Song, Tianrui Zhai, Xinping Zhang
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Polymers
Subjects:
DFB polymer lasers
cavity coupling
azimuthally polarized output
lasing threshold
Online Access:https://www.mdpi.com/2073-4360/11/5/764
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spelling doaj-0bfaf074a74e4220a282f040e7aacf672020-11-24T21:44:53ZengMDPI AGPolymers2073-43602019-05-0111576410.3390/polym11050764polym11050764Controlling the Performance of Polymer Lasers via the Cavity CouplingShuai Zhang0Junhua Tong1Chao Chen2Fengzhao Cao3Chengbin Liang4Yanrong Song5Tianrui Zhai6Xinping Zhang7Institute of Information Photonics Technology, College of Applied Sciences, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, College of Applied Sciences, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, College of Applied Sciences, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, College of Applied Sciences, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, College of Applied Sciences, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, College of Applied Sciences, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, College of Applied Sciences, Beijing University of Technology, Beijing 100124, ChinaInstitute of Information Photonics Technology, College of Applied Sciences, Beijing University of Technology, Beijing 100124, ChinaThe polarization and threshold of distributed feedback (DFB) polymer lasers were controlled by adjusting the cavity coupling. The cavity of DFB polymer lasers consisted of two gratings, which was fabricated by a two-beam multi-exposure holographic technique. The coupling strength of the cavity modes was tuned by changing the angle between the two gratings. The threshold of the polymer lasers decreased with reducing the coupling strength of the cavity modes. A minimum threshold was observed at the lowest coupling strength. Moreover, the azimuthally polarized output of the polymer lasers was modified by changing the cavity coupling. These results may provide additional perspectives to improve the performance of DFB polymer lasers.https://www.mdpi.com/2073-4360/11/5/764DFB polymer laserscavity couplingazimuthally polarized outputlasing threshold
collection DOAJ
language English
format Article
sources DOAJ
author Shuai Zhang
Junhua Tong
Chao Chen
Fengzhao Cao
Chengbin Liang
Yanrong Song
Tianrui Zhai
Xinping Zhang
spellingShingle Shuai Zhang
Junhua Tong
Chao Chen
Fengzhao Cao
Chengbin Liang
Yanrong Song
Tianrui Zhai
Xinping Zhang
Controlling the Performance of Polymer Lasers via the Cavity Coupling
Polymers
DFB polymer lasers
cavity coupling
azimuthally polarized output
lasing threshold
author_facet Shuai Zhang
Junhua Tong
Chao Chen
Fengzhao Cao
Chengbin Liang
Yanrong Song
Tianrui Zhai
Xinping Zhang
author_sort Shuai Zhang
title Controlling the Performance of Polymer Lasers via the Cavity Coupling
title_short Controlling the Performance of Polymer Lasers via the Cavity Coupling
title_full Controlling the Performance of Polymer Lasers via the Cavity Coupling
title_fullStr Controlling the Performance of Polymer Lasers via the Cavity Coupling
title_full_unstemmed Controlling the Performance of Polymer Lasers via the Cavity Coupling
title_sort controlling the performance of polymer lasers via the cavity coupling
publisher MDPI AG
series Polymers
issn 2073-4360
publishDate 2019-05-01
description The polarization and threshold of distributed feedback (DFB) polymer lasers were controlled by adjusting the cavity coupling. The cavity of DFB polymer lasers consisted of two gratings, which was fabricated by a two-beam multi-exposure holographic technique. The coupling strength of the cavity modes was tuned by changing the angle between the two gratings. The threshold of the polymer lasers decreased with reducing the coupling strength of the cavity modes. A minimum threshold was observed at the lowest coupling strength. Moreover, the azimuthally polarized output of the polymer lasers was modified by changing the cavity coupling. These results may provide additional perspectives to improve the performance of DFB polymer lasers.
topic DFB polymer lasers
cavity coupling
azimuthally polarized output
lasing threshold
url https://www.mdpi.com/2073-4360/11/5/764
work_keys_str_mv AT shuaizhang controllingtheperformanceofpolymerlasersviathecavitycoupling
AT junhuatong controllingtheperformanceofpolymerlasersviathecavitycoupling
AT chaochen controllingtheperformanceofpolymerlasersviathecavitycoupling
AT fengzhaocao controllingtheperformanceofpolymerlasersviathecavitycoupling
AT chengbinliang controllingtheperformanceofpolymerlasersviathecavitycoupling
AT yanrongsong controllingtheperformanceofpolymerlasersviathecavitycoupling
AT tianruizhai controllingtheperformanceofpolymerlasersviathecavitycoupling
AT xinpingzhang controllingtheperformanceofpolymerlasersviathecavitycoupling
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