Reflectivity-tunable fiber Bragg grating reflectors

Ding Wei Huang, Wen Fung Liu, Cheng Wen Wu, C. C. Yang

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)


We report a novel device that modulates the Bragg reflectivity of a fiber grating by exciting the transverse vibration of the fiber through an acoustic wave. The excitation of the transverse vibration, leading to fiber microbending, induces the coupling of the fiber core mode into cladding modes. This leads to the reduction of core-mode power and hence that of Bragg reflection. This mechanism provides us a means to control the reflectivity after a fiber Bragg grating is fabricated. The numerical results based on a simple micro-bending model agree well in trend with the experimental data.

Original languageEnglish
Pages (from-to)176-178
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number2
Publication statusPublished - 2000 Feb 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Reflectivity-tunable fiber Bragg grating reflectors'. Together they form a unique fingerprint.

Cite this