Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings

This letter reports room-temperature electrically pumped narrow-linewidth GaN-on-Si laser diodes. Unlike conventional distributed Bragg feedback laser diodes with hundreds of gratings, we employed only a few precisely defined slot gratings to narrow the linewidth and mitigate the negative effects of...

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Autores principales:	Yongjun Tang, Meixin Feng, Jianxun Liu, Shizhao Fan, Xiujian Sun, Qian Sun, Shuming Zhang, Tong Liu, Yaping Kong, Zengli Huang, Masao Ikeda, Hui Yang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	narrow linewidth GaN-on-Si laser diode III nitride photonics etching damage Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/4401b53a28884d50945985ada81b4654
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spelling	oai:doaj.org-article:4401b53a28884d50945985ada81b46542021-11-25T18:32:23ZNarrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings10.3390/nano111130922079-4991https://doaj.org/article/4401b53a28884d50945985ada81b46542021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3092https://doaj.org/toc/2079-4991This letter reports room-temperature electrically pumped narrow-linewidth GaN-on-Si laser diodes. Unlike conventional distributed Bragg feedback laser diodes with hundreds of gratings, we employed only a few precisely defined slot gratings to narrow the linewidth and mitigate the negative effects of grating fabrication on the device performance. The slot gratings were incorporated into the ridge of conventional Fabry-Pérot cavity laser diodes. A subsequent wet etching in a tetramethyl ammonium hydroxide solution not only effectively removed the damages induced by the dry etching, but also converted the rough and tilted slot sidewalls into smooth and vertical ones. As a result, the threshold current was reduced by over 20%, and the reverse leakage current was decreased by over three orders of magnitude. Therefore, the room-temperature electrically pumped narrow-linewidth GaN-on-Si laser diode has been successfully demonstrated.Yongjun TangMeixin FengJianxun LiuShizhao FanXiujian SunQian SunShuming ZhangTong LiuYaping KongZengli HuangMasao IkedaHui YangMDPI AGarticlenarrow linewidthGaN-on-Silaser diodeIII nitride photonicsetching damageChemistryQD1-999ENNanomaterials, Vol 11, Iss 3092, p 3092 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	narrow linewidth GaN-on-Si laser diode III nitride photonics etching damage Chemistry QD1-999
spellingShingle	narrow linewidth GaN-on-Si laser diode III nitride photonics etching damage Chemistry QD1-999 Yongjun Tang Meixin Feng Jianxun Liu Shizhao Fan Xiujian Sun Qian Sun Shuming Zhang Tong Liu Yaping Kong Zengli Huang Masao Ikeda Hui Yang Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings
description	This letter reports room-temperature electrically pumped narrow-linewidth GaN-on-Si laser diodes. Unlike conventional distributed Bragg feedback laser diodes with hundreds of gratings, we employed only a few precisely defined slot gratings to narrow the linewidth and mitigate the negative effects of grating fabrication on the device performance. The slot gratings were incorporated into the ridge of conventional Fabry-Pérot cavity laser diodes. A subsequent wet etching in a tetramethyl ammonium hydroxide solution not only effectively removed the damages induced by the dry etching, but also converted the rough and tilted slot sidewalls into smooth and vertical ones. As a result, the threshold current was reduced by over 20%, and the reverse leakage current was decreased by over three orders of magnitude. Therefore, the room-temperature electrically pumped narrow-linewidth GaN-on-Si laser diode has been successfully demonstrated.
format	article
author	Yongjun Tang Meixin Feng Jianxun Liu Shizhao Fan Xiujian Sun Qian Sun Shuming Zhang Tong Liu Yaping Kong Zengli Huang Masao Ikeda Hui Yang
author_facet	Yongjun Tang Meixin Feng Jianxun Liu Shizhao Fan Xiujian Sun Qian Sun Shuming Zhang Tong Liu Yaping Kong Zengli Huang Masao Ikeda Hui Yang
author_sort	Yongjun Tang
title	Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings
title_short	Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings
title_full	Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings
title_fullStr	Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings
title_full_unstemmed	Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings
title_sort	narrow-linewidth gan-on-si laser diode with slot gratings
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4401b53a28884d50945985ada81b4654
work_keys_str_mv	AT yongjuntang narrowlinewidthganonsilaserdiodewithslotgratings AT meixinfeng narrowlinewidthganonsilaserdiodewithslotgratings AT jianxunliu narrowlinewidthganonsilaserdiodewithslotgratings AT shizhaofan narrowlinewidthganonsilaserdiodewithslotgratings AT xiujiansun narrowlinewidthganonsilaserdiodewithslotgratings AT qiansun narrowlinewidthganonsilaserdiodewithslotgratings AT shumingzhang narrowlinewidthganonsilaserdiodewithslotgratings AT tongliu narrowlinewidthganonsilaserdiodewithslotgratings AT yapingkong narrowlinewidthganonsilaserdiodewithslotgratings AT zenglihuang narrowlinewidthganonsilaserdiodewithslotgratings AT masaoikeda narrowlinewidthganonsilaserdiodewithslotgratings AT huiyang narrowlinewidthganonsilaserdiodewithslotgratings
_version_	1718411010686058496

Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings

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