Property optimization of Er/Yb-codoped LiNbO3 crystals for LNOI lasers and amplifiers

Lithium-niobate-on-insulator (LNOI) is regarded as an ideal platform for integrated photonics. As an essential part, active devices based on rare-earth (RE) doped LNOI have made significant progress, with erbium/ytterbium-codoped lithium niobate (Er/Yb-codoped LN) showing great potential. In this pa...

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Main Authors: Zhongzheng Zhang, Yuqi Zhang, Zhaojie Wu, Xin Yuan, Shiguo Liu, Hongde Liu, Dahuai Zheng, Yongfa Kong, Jingjun Xu
Format: Article
Language:English
Published: AIP Publishing LLC 2024-12-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/5.0243742
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author Zhongzheng Zhang
Yuqi Zhang
Zhaojie Wu
Xin Yuan
Shiguo Liu
Hongde Liu
Dahuai Zheng
Yongfa Kong
Jingjun Xu
author_facet Zhongzheng Zhang
Yuqi Zhang
Zhaojie Wu
Xin Yuan
Shiguo Liu
Hongde Liu
Dahuai Zheng
Yongfa Kong
Jingjun Xu
author_sort Zhongzheng Zhang
collection DOAJ
description Lithium-niobate-on-insulator (LNOI) is regarded as an ideal platform for integrated photonics. As an essential part, active devices based on rare-earth (RE) doped LNOI have made significant progress, with erbium/ytterbium-codoped lithium niobate (Er/Yb-codoped LN) showing great potential. In this paper, a series of Er/Yb-codoped LN crystals were successfully grown by the Czochralski method, featuring a fixed Er3+ concentration with various Yb3+ doping levels and a fixed RE3+ (RE3+ = Er3+ + Yb3+) concentration. The absorption and emission spectra were measured, and the transfer efficiencies along with relative conversion efficiencies were also displayed. It was concluded that the optimal composition of codoped LN is ∼1.0 mol. % Er3+ and 1.0 mol. % Yb3+, which can enhance active devices by providing lower threshold power, reduced transmission loss, higher transfer efficiency, and improved conversion efficiency. These results will advance the development of high performance LNOI lasers and amplifiers.
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institution Kabale University
issn 2166-532X
language English
publishDate 2024-12-01
publisher AIP Publishing LLC
record_format Article
series APL Materials
spelling doaj-art-feef586ae4d1404c950ce11c843e4cc52025-01-02T17:16:13ZengAIP Publishing LLCAPL Materials2166-532X2024-12-011212121104121104-710.1063/5.0243742Property optimization of Er/Yb-codoped LiNbO3 crystals for LNOI lasers and amplifiersZhongzheng Zhang0Yuqi Zhang1Zhaojie Wu2Xin Yuan3Shiguo Liu4Hongde Liu5Dahuai Zheng6Yongfa Kong7Jingjun Xu8MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, ChinaMOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, ChinaMOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, ChinaMOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, ChinaMOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, ChinaMOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, ChinaMOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, ChinaMOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, ChinaMOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai University, Tianjin 300071, ChinaLithium-niobate-on-insulator (LNOI) is regarded as an ideal platform for integrated photonics. As an essential part, active devices based on rare-earth (RE) doped LNOI have made significant progress, with erbium/ytterbium-codoped lithium niobate (Er/Yb-codoped LN) showing great potential. In this paper, a series of Er/Yb-codoped LN crystals were successfully grown by the Czochralski method, featuring a fixed Er3+ concentration with various Yb3+ doping levels and a fixed RE3+ (RE3+ = Er3+ + Yb3+) concentration. The absorption and emission spectra were measured, and the transfer efficiencies along with relative conversion efficiencies were also displayed. It was concluded that the optimal composition of codoped LN is ∼1.0 mol. % Er3+ and 1.0 mol. % Yb3+, which can enhance active devices by providing lower threshold power, reduced transmission loss, higher transfer efficiency, and improved conversion efficiency. These results will advance the development of high performance LNOI lasers and amplifiers.http://dx.doi.org/10.1063/5.0243742
spellingShingle Zhongzheng Zhang
Yuqi Zhang
Zhaojie Wu
Xin Yuan
Shiguo Liu
Hongde Liu
Dahuai Zheng
Yongfa Kong
Jingjun Xu
Property optimization of Er/Yb-codoped LiNbO3 crystals for LNOI lasers and amplifiers
APL Materials
title Property optimization of Er/Yb-codoped LiNbO3 crystals for LNOI lasers and amplifiers
title_full Property optimization of Er/Yb-codoped LiNbO3 crystals for LNOI lasers and amplifiers
title_fullStr Property optimization of Er/Yb-codoped LiNbO3 crystals for LNOI lasers and amplifiers
title_full_unstemmed Property optimization of Er/Yb-codoped LiNbO3 crystals for LNOI lasers and amplifiers
title_short Property optimization of Er/Yb-codoped LiNbO3 crystals for LNOI lasers and amplifiers
title_sort property optimization of er yb codoped linbo3 crystals for lnoi lasers and amplifiers
url http://dx.doi.org/10.1063/5.0243742
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