Tunable comb filters and refractive index sensors based on fiber loop mirror with inline high birefringence microfiber

Wa Jiin, Chao Wang, Haifeng Xuan, Wei Jin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

32 Citations (Scopus)


Highly birefringent (Hi-Bi) microfiber-based fiber loop mirrors (FLMs) were studied for tunable comb filters and refractive index (RI) sensors. The use of two cascaded Hi-Bi microfibers instead of a single microfiber allows more flexibility in controlling the transmission/reflection characteristics of the FLM. The length of Hi-Bi microfibers is of the order of centimeters, one or even more than two orders of magnitude shorter than the conventional Hi-Bi fiber-based FLM devices. The transmission/reflection spectra are sensitive to the RI surrounding the microfibers, and RI sensitivity of 20,745 nm/RIU was experimentally demonstrated.
Original languageEnglish
Pages (from-to)4277-4280
Number of pages4
JournalOptics Letters
Issue number21
Publication statusPublished - 1 Nov 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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