Cladding-mode-assisted recouplings in concatenated long-period and fiber Bragg gratings

Aping Zhang, Xiaoming Tao, Weng Hong Chung, Bai Ou Guan, Hwa Yaw Tam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

52 Citations (Scopus)


We investigate new types of mode recouplings in a concatenated grating structure comprising a long-period grating and a fiber Bragg grating. It is demonstrated that the light coupled out to the cladding mode by one of these gratings can be recoupled back to the guided mode by the other grating. Theoretical analysis based on the coupled-mode theory is presented, together with experimental results.
Original languageEnglish
Pages (from-to)1214-1216
Number of pages3
JournalOptics Letters
Issue number14
Publication statusPublished - 15 Jul 2002

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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