Selective excitation and coupling of high-order optical modes of a microstructured optical fiber by using a fiber-end microtip

Yinbing Bai, Aping Zhang, Guofeng Yan, Sailing He

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


We present the selective excitation and coupling of high-order optical modes in microstructured optical fibers (MOFs) by using a fiber-end microtip. After the self-growing of a microtip on the end face of a standard single-mode fiber, it is demonstrated that a fine tuning of the relative displacement between the microtip and MOF can greatly improve the excitation and coupling efficiency of high-order optical modes of the MOF. A 6:85 dB improvement in coupling efficiency of the second-order mode of a homemade small-hole MOF is experimentally achieved, and a sensitivity-enhanced measurement of the refractive index in MOF microholes is demonstrated.
Original languageEnglish
Pages (from-to)4074-4076
Number of pages3
JournalOptics Letters
Issue number20
Publication statusPublished - 15 Oct 2011
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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