Dual-wavelength switchable single-mode lasing from a lanthanide-doped resonator

Limin Jin (), Xian Chen (), Yunkai Wu, Xiangzhe Ai, Xiaoli Yang, Shumin Xiao () and Qinghai Song ()
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Limin Jin: Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology
Xian Chen: Shenzhen University
Yunkai Wu: Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology
Xiangzhe Ai: Shenzhen University
Xiaoli Yang: Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology
Shumin Xiao: Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology
Qinghai Song: Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Harbin Institute of Technology

Nature Communications, 2022, vol. 13, issue 1, 1-9

Abstract: Abstract The development of multi-wavelength lasing, particularly with the wavelength tuning in a wide spectral range, is challenging but highly desirable for integrated photonic devices due to its dynamic switching functionality, high spectral purity and contrast. Here, we propose a general strategy, that relies on the simultaneous design on the electronic states and the optical states, to demonstrate dynamically switchable single-mode lasing spanning beyond the record range (300 nm). This is achieved through integrating the reversely designed nanocrystals with two size-mismatched coupled microcavities. We show an experimental validation of a crosstalk-free violet-to-red single-mode behavior through collective control of asymmetric excitation and excitation wavelength. The single-mode action persists for a wide power range, and presents significant enhancement when compared with that in the microdisk laser. These findings enlighten the reverse design of luminescent materials. Given the remarkable doping flexibility, our results may create new opportunities in a variety of frontier applications.

Date: 2022
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DOI: 10.1038/s41467-022-29435-w

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