Demonstration of optical microfiber knot resonators

Applied Physics Letters - Tập 88 Số 22 - 2006
Xiaoshun Jiang1, Limin Tong1, Guillaume Vienne1, Xin Guo1, Albert Tsao2, Qing Yang3, Deren Yang3
1Zhejiang University State Key Laboratory of Modern Optical Instrumentation, , Hangzhou 310027, China
2Harvey Mudd College , Claremont, California 91711
3Zhejiang University State Key Laboratory of Silicon Materials, , Hangzhou 310027, China

Tóm tắt

We demonstrate optical resonance from microfiber knots obtained by manipulating freestanding silica microfibers. Q factors as high as 57 000 with finesse of 22 are observed in knots with sizes less than 1mm. The free spectral range of the resonator can be easily tuned by tightening the knot structure in air. The knot resonators are highly stable in water with Q factors up to 31 000 and finesse of 13. The possibility of supporting the knot resonator with a solid MgF2 substrate is also demonstrated.

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Thông tin xuất bản

Applied Physics Letters

Tập 88 Số 22

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