Dye laser based on novel SMOF

Abstract

A laser of a novel SMOF filled with a liquid core has the strong radiation and laser emitted in the radial direction of the optical fiber. A micro-flow channel is composed of holes which are approximately cylindrical and formed in the center of the SMOF. A center hole of the hollow SMOF is selectively filled with a section of Rhodamine 6-G dye liquid, and a nanosecond pulse laser of 532 nm pumps in the transverse direction of the part filled with the optical fiber. Based on the novel hollow SMOF, an optical fiber side face pumping system is combined, the micro-flow channel is selectively filled by the utilization of the SMOF, and the independent SMOF is used, so that radiation of gain media is achieved, and the emitted laser has high stability and tenability. The dye laser based on the SMOF is firm in structure and small in size so as to be applied to integrated equipment conveniently. The dye laser is combined with an immunofluorescence method of a fixed antibody in the hollow optical fiber holes so as to be applied to an optical fluid microsystem on biomedical detection and chemical analysis.

Description

Technical field [0001] The invention relates to a dye laser of a microstructure fiber, which is based on a new type of hollow microstructure fiber, combined with a fiber side pumping system. The device utilizes the selective filling of microchannels of the microstructure fiber, and uses an independent microstructure fiber to realize the gain medium. Lasing, laser emission is tunable, and has the characteristics of high intensity and radial radiation. Background technique [0002] The luminescence mechanism of microcavity lasers is that multiple reflections in the microcavity make standing waves form at specific frequencies in the optical cavity. Due to the strong light confinement in the microcavity, the interaction between light and matter in the microcavity is enhanced, and the resonant cavity mode becomes more stable. sharp. Microcavity dye lasers can be made very small and integrated on a chip to make a small portable device. At the same time, due to the different emiss...

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Problems solved by technology

The use of axial pumping requires a precise coupling method, which makes one e

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