Erbium-ytterbium co-doped lithium niobate single-mode microdisk laser with an ultralow threshold of 1 μW

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外文摘要：We demonstrate single-mode microdisk lasers in the telecom band with ultralow thresholds on erbium-ytterbium co-doped thin-film lithium niobate[TFLN].The active microdisk was fabricated with high-Qfactors by photolithography-assisted che-momechanical etching.Thanks to the erbium-ytterbium co-doping providing high optical gain,the ultralow loss nanostruc-turing,and the excitation of high-Q coherent polygon modes,which suppresses multimode lasing and allows high spatial mode overlap between pump and lasing modes,single-mode laser emission operating at 1530 nm wavelength was observed with an ultralow threshold,under a 980-nm-band optical pump.The threshold was measured as low as 1 μW,which is one order of magnitude smaller than the best results previously reported in single-mode active TFLN microlasers.The conver-sion efficiency reaches 4.06 × 10-3,which is also the highest value reported in single-mode active TFLN microlasers.

外文关键词：

lithium niobatemicrocavitiesmicrodisk lasers

作者：

李明慧、高仁宏、黎春桃、管江林、张海粟、林锦添、赵光辉、乔迁、汪旻、乔玲玲、邓莉、程亚

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作者单位：

State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science,Shanghai Institute of Optics and Fine Mechanics(SIOM),Chinese Academy of Sciences(CAS),Shanghai 201800,China

Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

XXL—The Extreme Optoelectromechanics Laboratory,School of Physics and Electronic Science,East China Normal University,Shanghai 200241,China

State Key Laboratory of Precision Spectroscopy,East China Normal University,Shanghai 200062,China

State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-Intense Laser Science,Shanghai Institute of Optics and Fine Mechanics[SIOM],Chinese Academy of Sciences[CAS],Shanghai 201800,China

School of Physical Science and Technology,ShanghaiTech University,Shanghai 200031,China

Shanghai Research Center for Q

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基金：

National Key R&D Program of ChinaNational Key R&D Program of ChinaNational Key R&D Program of ChinaNational Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)Innovation Program for Quantum Science and TechnologyShanghai Municipal Science and Technology Major ProjectScience and Technology Commission of Shanghai MunicipalityScience and Technology Commission of Shanghai MunicipalityYouth Innovation Promotion Association of Chinese Academy of SciencesEngineering Research Center for Nanophotonics & Advanced Instrument,Ministry of Education,East China Normal University

项目编号：

2019YFA07050002022YFA14046002022YFA1205100621220791219225162235019123340141213400112104159119330052021ZD03014032019SHZDZX0121DZ110150023ZR148180020202492023nmc005

出版年：

2024

DOI：

10.3788/COL202422.041301

中国光学快报(英文版)

中国光学学会中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD

影响因子：1.305

ISSN：1671-7694

年,卷(期)：2024.22(4)