Photopolymer microtips for efficient light coupling between single-mode fibers and photonic crystal fibers

Limin Xiao, Wei Jin, M. Demokan, Hoi L. Ho, Hwa Yaw Tam, Jian Ju

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)


A novel method for light coupling between single-mode fibers (SMFs) and small-core photonic crystal fibers (PCFs) is demonstrated. The method is based on growing photopolymer microtips directly on the end faces of SMFs. The shape and size of the tips can be controlled by adjusting the laser power and the exposure time for polymerization to match the mode field to the small-core PCFs. A 5 dB improvement in coupling efficiency between a SMF and a commercial small-core, highly nonlinear PCF is experimentally demonstrated. This compact and efficient butt-coupling method is particularly suitable for PCF gas sensor applications.
Original languageEnglish
Pages (from-to)1791-1793
Number of pages3
JournalOptics Letters
Issue number12
Publication statusPublished - 15 Jun 2006

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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