Single mode fiber variable optical attenuator based on a ferrofluid shutter

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Abstract

We report on the fabrication and characterization of a single-mode fiber variable optical attenuator (VOA) based on a ferrofluid shutter actuated by a magnetic field created by a low voltage electromagnet. We compare the performance of a VOA using oil-based ferrofluid, with one VOA using water-based 12 ferrofluid, and demonstrate broadband optical attenuation of up to 28 dB with polarization dependent 13 loss of 0.85 dB. Our optofluidic VOA has advantages over MEMS-based VOAs such as simple construction and the absence of mechanical moving parts.
Original languageEnglish
Pages (from-to)1952-1957
Number of pages6
JournalApplied Optics
Volume54
Issue number8
Early online date4 Mar 2015
DOIs
Publication statusPublished - 10 Mar 2015

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attenuators
ferrofluids
shutters
fibers
electromagnets
low voltage
microelectromechanical systems
oils
attenuation
broadband
fabrication
polarization
magnetic fields
water

Keywords

  • optical attenuation
  • ferrofluids
  • ferrofluid shutter

Cite this

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Single mode fiber variable optical attenuator based on a ferrofluid shutter. / Dudus, Anna Maria; Blue, Robert; Uttamchandani, Deepak.

In: Applied Optics, Vol. 54, No. 8, 10.03.2015, p. 1952-1957.

Research output: Contribution to journalArticle

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