Journal
NANOPHOTONICS
Volume 10, Issue 18, Pages 4591-4599Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/nanoph-2021-0462
Keywords
2D-3D mu-cavity; mode switching; polymer fiber; RGB; single mode laser
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Funding
- National Natural Science Foundation of China (NSFC) [61822501]
- Beijing Natural Science Foundation [Z180015]
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The study successfully achieved RGB single mode lasing in a hybrid 2D-3D microcavity, providing a platform for the rational design of nanophotonic devices and on-chip communication.
Single mode lasers, particularly red-green-blue (RGB) colors, have attracted wide attention due to their potential applications in the photonic field. Here, we realize the RGB single mode lasing in a hybrid two-dimension and three-dimension (2D-3D) hybrid microcavity (mu-cavity) with a low threshold. The hybrid 2D-3D mu-cavity consists of a polymer fiber and a microsphere. Typical RGB polymer film consisting gain materials are cladded on a fiber. To achieve single mode lasing, the polymer fiber therein serves as an excellent gain cavity to provide multiple lasing modes while the microsphere acts as a loss channel to suppress most of the lasing modes. Mode switching can be realized by adjusting the pump position. It can be attributed to the change of coupled efficiency between gain mu-cavity and loss mu-cavity. Our work will provide a platform for the rational design of nanophotonic devices and on-chip communication.
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