Strongly enhanced mode selection in a thin dielectric-coated layered microcavity laser |
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Authors: | Moon Hee-Jong Kang Dong-Yun |
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Affiliation: | Department of Optical Engineering, Sejong University, Seoul, Korea. hjmoon@sejong.ac.kr |
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Abstract: | Strong mode selection through an enhanced interferential coupling effect was observed in a thin dielectric-coated layered cylindrical microcavity laser. The strong coupling effect was induced owing to an enhanced reflectivity of around 50% at the dielectric-coated inner boundary of a fused silica capillary filled with a dye-doped liquid. At an optimized coating thickness of about 0.4 microm, the lasing peaks appeared only at the wavelengths corresponding to the constructive interference condition, whereas those from a bare capillary were weakly modulated. |
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