Magnetic field tunability of optical microfiber taper integrated with ferrofluid.

Optics express · 2013 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 3109

Study snapshot

PublicationOptics express · 2013

Study typeengineering

Reported directionUnclear

Evidence ratingInsufficient

Abstract

Optical microfiber taper has unique propagation properties, which provides versatile waveguide structure to design the tunable photonic devices. In this paper, the S-tapered microfiber is fabricated by using simple fusion spicing. The spectral characteristics of microfiber taper integrated with ferrofluid under different magnetic-field intensities have been theoretically analyzed and experimentally demonstrated. The spectrum are both found to become highly magnetic-field-dependent. The results indicate the transmission and wavelength of the dips are adjustable by changing magnetic field intensity. The response of this device to the magnetic field intensity exhibits a Langvin function. Moreover, there is a linear relationship between the transmission loss and magnetic field intensity for a magnetic field intensity range of 25 to 200Oe, and the sensitivities as high as 0.13056dB/Oe and 0.056nm/Oe have been achieved, respectively. This suggests a potential application of this device as a tunable all-in-fiber photonic device, such as magneto-optic modulator, filter, and sensing element.

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AI evidence extraction

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Study typeengineering

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

The spectral characteristics of an S-tapered optical microfiber integrated with ferrofluid were theoretically analyzed and experimentally demonstrated to be highly dependent on magnetic-field intensity. Transmission loss and dip wavelength were adjustable with magnetic field intensity; a linear relationship between transmission loss and magnetic field intensity was reported over 25–200 Oe, with sensitivities up to 0.13056 dB/Oe and 0.056 nm/Oe.

Outcomes measured

Optical transmission loss vs magnetic field intensity
Wavelength shift (dip wavelength) vs magnetic field intensity
Magnetic-field-dependent spectral characteristics
Sensitivity (dB/Oe and nm/Oe)

View raw extracted JSON

{
  "study_type": "engineering",
  "exposure": {
    "band": null,
    "source": "magnetic field (device tuning)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Optical transmission loss vs magnetic field intensity",
    "Wavelength shift (dip wavelength) vs magnetic field intensity",
    "Magnetic-field-dependent spectral characteristics",
    "Sensitivity (dB/Oe and nm/Oe)"
  ],
  "main_findings": "The spectral characteristics of an S-tapered optical microfiber integrated with ferrofluid were theoretically analyzed and experimentally demonstrated to be highly dependent on magnetic-field intensity. Transmission loss and dip wavelength were adjustable with magnetic field intensity; a linear relationship between transmission loss and magnetic field intensity was reported over 25–200 Oe, with sensitivities up to 0.13056 dB/Oe and 0.056 nm/Oe.",
  "effect_direction": "unclear",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "optical microfiber taper",
    "S-tapered microfiber",
    "ferrofluid",
    "magnetic field tunability",
    "magneto-optic",
    "photonic device",
    "sensor",
    "transmission loss",
    "wavelength shift",
    "Langvin function",
    "sensitivity"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1364/oe.21.029914
PubMed: 24514542

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