Electrically Tunable Multiwavelength Bragg Grating Filter Acoustically Induced in a Highly Birefringent Suspended Core Fiber

R.E. Silva, M. Becker, M. Rothhardt, H. Bartelt, A.A.P. Pohl

Research output: Contribution to journalArticle

Abstract

Multiwavelength reflection spectra induced by an acoustically modulated fiber Bragg grating (FBG) in a highly birefringent suspended core fiber are experimentally investigated. Longitudinal acoustic waves interacting with a grating generate side lobes in the reflectivity spectrum and produce a superposed reflection band. The reflectivity of up to five wavelength peaks can be actively tuned by the voltage of the electrical signal inducing the acoustic waves. This indicates new possibilities for compact and fast multiwavelength dynamic and fiber-integrated reflection filters.
Original languageEnglish
Article number7801209
JournalIEEE Photonics Journal
Volume9
Issue number1
DOIs
Publication statusPublished - 1 Feb 2017

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