期刊
OPTICS EXPRESS
卷 17, 期 7, 页码 5273-5278出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.17.005273
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资金
- Engineering and Physical Sciences Research Council UK (EPSRC)
- Royal Society (London, UK)
- Korean Government [KRF-2008-357-C00040]
- EPSRC [EP/F001134/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F001134/1] Funding Source: researchfish
We present a broadband single-mode bi-conical microfiber coupler (MFC) with a specifically designed transition region that effectively suppresses any higher-order modes present at the input fiber and provides efficient power splitting into the fundamental mode at the two output ports. As a practical example, single-mode 3-dB splitting operation over a broad spectral window (400 similar to 1700 nm) was demonstrated for a very thin taper waist (similar to 1.5 mu m) MFC made from conventional telecom optical fibers. (C) 2009 Optical Society of America
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