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A novel inter core-cladding lithium niobate thin film coated fiber modulator/sensor

Research output: Contribution to journalConference articlepeer-review

Abstract

A fiber modulator/sensor has been fabricated by depositing a lithium niobate sol-gel thin film between the core and cladding of a fiber preform. The preform is then drawn into 125 μm fiber. The proposed design of lithium niobate cylinder fibers can enhance the existing methodology for detecting sound waves under water utilizing the acoustooptic properties of lithium niobate. Upon application of a stress or strain, light propagating inside the core, according to the principle of total internal reflection, escapes into the cladding because of the photoelastic boundary layer of lithium niobate. Test results of the lithium niobate fiber reveal a reduction in the 1550 nm, 4mW source with applied tension. The source power from an ordinary quartz fiber under the same stress condition remained invariant to applied tension.

Original languageEnglish (US)
Pages (from-to)118-125
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5347
DOIs
StatePublished - 2004
Externally publishedYes
EventMicromachining Technology for Micro - Optics and Nano - Optics II - San Jose, CA., United States
Duration: Jan 27 2004Jan 29 2004

Keywords

  • Acoustooptic Sensor
  • Electrooptic Modulator
  • Fiber Modulator/Sensor
  • Lithium Niobate
  • Sol gel Fiber

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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