Fabrication of a compact reflective long-period grating sensor with a cladding-mode-selective fiber end-face mirror

Meng Jiang, Aping Zhang, Yang Chun Wang, Hwa Yaw Tam, Sailing He

Research output: Journal article publicationJournal articleAcademic researchpeer-review

56 Citations (Scopus)


A long-period grating (LPG) based compact optical fiber sensor working in reflection mode is demonstrated. A technique to make a mirror on the cladding region of a fiber end-face to reflect only the cladding modes was realized by growing a polymeric microtip on the core region of the fiber end-face, by photopolymerization, followed by coating the fiber end-face with an aluminum film. Using the cladding-mode-selective fiber end-face mirror, the transmission spectrum of the LPG was "inverted" and reflected. Preliminary results of using the sensor to measure the refractive index of glycerol/water solutions were successfully demonstrated.
Original languageEnglish
Pages (from-to)17976-17982
Number of pages7
JournalOptics Express
Issue number20
Publication statusPublished - 28 Sep 2009

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this