Magnetic field tunability of optical microfiber taper integrated with ferrofluid.

PAPER pubmed Optics express 2013 Engineering / measurement Effect: unclear Evidence: Insufficient

Read original paper → DOI: 10.1364/oe.21.029914 PMID: 24514542 Evidence Lab

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.

AI evidence extraction

At a glance

Study type

Engineering / measurement

Effect direction

unclear

Population

—

Sample size

—

Exposure

magnetic field (device tuning)

Evidence strength

Insufficient

Confidence: 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": 0.7399999999999999911182158029987476766109466552734375,
    "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/metadata and may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.

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