Open Access
9 July 2022 Simultaneous ultraviolet, visible, and near-infrared continuous-wave lasing in a rare-earth-doped microcavity
Bo Jiang, Song Zhu, Linhao Ren, Lei Shi, Xinliang Zhang
Author Affiliations +
Abstract

Microlaser with multiple lasing bands is critical in various applications, such as full-color display, optical communications, and computing. Here, we propose a simple and efficient method for homogeneously doping rare earth elements into a silica whispering-gallery microcavity. By this method, an Er-Yb co-doped silica microsphere cavity with the highest quality (Q) factor (exceeding 108) among the rare-earth-doped microcavities is fabricated to demonstrate simultaneous and stable lasing covering ultraviolet, visible, and near-infrared bands under room temperature and a continuous-wave pump. The thresholds of all the lasing bands are estimated to be at the submilliwatt level, where both the ultraviolet and violet continuous wave upconversion lasing from rare earth elements has not been separately demonstrated under room temperature until this work. This ultrahigh-Q doped microcavity is an excellent platform for high-performance multiband microlasers, ultrahigh-precision sensors, optical memories, and cavity-enhanced light–matter interaction studies.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Bo Jiang, Song Zhu, Linhao Ren, Lei Shi, and Xinliang Zhang "Simultaneous ultraviolet, visible, and near-infrared continuous-wave lasing in a rare-earth-doped microcavity," Advanced Photonics 4(4), 046003 (9 July 2022). https://doi.org/10.1117/1.AP.4.4.046003
Received: 24 November 2021; Accepted: 14 June 2022; Published: 9 July 2022
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CITATIONS
Cited by 43 scholarly publications.
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KEYWORDS
Optical microcavities

Ultraviolet radiation

Ions

Upconversion

Continuous wave operation

Erbium

Visible radiation

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