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Updated: May 18, 2026

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
Published on: May 27, 2013
A hollow beam supercontinuum generation by the supermode superposition in a GeO2 doped triangular-core photonic
Xin-ben Zhang1, Xian Zhu, Xiang Chen
1Wuhan National Laboratory of Optoelectronic, Huazhong University of Science and Technology, 430074 Wuhan, China.
Abstract:
A GeO2 doped triangular-core photonic-crystal fiber (PCF) is designed and fabricated to allow the generation of a hollow beam through a nonlinear-optical transformation by femtosecond pulses at 1040 nm from a high power Yb-doped PCF laser oscillator. The hollow beam supercontinuum is obtained at far field by adjusting incident light polarization to excite the high order supermode, behaving as a mode convertor. The supercontinuum ranging from 540 to 1540 nm is achieved with an average power of 1.04 W.
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