Bend loss in large core multimode optical fiber beam delivery systems

Boechat, Alvaro A. P.; Hall, D. R.; Jones, Julian D. C.

doi:10.1364/ao.30.000321

Cited by 83 publications

(19 citation statements)

References 14 publications

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“…(1) is calculated at each angle, and the transmitted power is determined with respect to the total input power. 1 The bending loss measurements at bending radii <5 mm were masked by the physical rigidity of the fiber. As can be seen in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…For silica-based fibers, high-power beam-delivery over centimeter to meter distances and the induced bend loss limits have already been studied. 1 Characterization of the losses associated with bending for fibers that transmit high-power beams in the mid-or long-wave infrared ranges has been much more limited. We focus on the mid-infrared range where there are multiple applications such as biomedical, sensing, and defense.…”

Section: Introductionmentioning

confidence: 99%

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Bend loss in multimode chalcogenide fiber at infrared wavelengths

et al. 2014

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Abstract. The bending loss is a critical parameter for packaging, representing a limiting parameter in the minimization of fiber-based devices. For applications in the midinfrared spectral band, chalcogenide glass optical fibers are one of the few alternatives for high-power beam delivery. We present experimental results for the bending loss of a sulfide-based multimode chalcogenide fiber for a broad range of infrared wavelengths as well demonstrating >5.8 W power handling for a 6.25-mm radius bend. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bend loss in multimode chalcogenide fiber at infrared wavelengths

et al. 2014

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Section: Reviewmentioning

confidence: 99%

Body‐Monitoring and Health Supervision by Means of Optical Fiber‐Based Sensing Systems in Medical Textiles

Quandt

Scherer

Boesel

et al. 2014

Adv Healthcare Materials

125

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Long-term monitoring with optical fibers has moved into the focus of attention due to the applicability for medical measurements. Within this Review, setups of flexible, unobtrusive body-monitoring systems based on optical fibers and the respective measured vital parameters are in focus. Optical principles are discussed as well as the interaction of light with tissue. Optical fiber-based sensors that are already used in first trials are primarily selected for the section on possible applications. These medical textiles include the supervision of respiration, cardiac output, blood pressure, blood flow and its saturation with hemoglobin as well as oxygen, pressure, shear stress, mobility, gait, temperature, and electrolyte balance. The implementation of these sensor concepts prompts the development of wearable smart textiles. Thus, current sensing techniques and possibilities within photonic textiles are reviewed leading to multiparameter designs. Evaluation of these designs should show the great potential of optical fibers for the introduction into textiles especially due to the benefit of immunity to electromagnetic radiation. Still, further improvement of the signal-to-noise ratio is often necessary to develop a commercial monitoring system.

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“…Boechat et al [38] gave a considerable list of references on this matter. They developed the existing theory as a function of the properties of a large core multimode fiber (core diameter and NA) and the properties of the bend (radius and length).…”

Section: Sensing Techniquesmentioning

confidence: 99%

Optical Sensors Based on Plastic Fibers

Bilro

Alberto

Pinto

et al. 2012

Sensors

314

131

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The recent advances of polymer technology allowed the introduction of plastic optical fiber in sensor design. The advantages of optical metrology with plastic optical fiber have attracted the attention of the scientific community, as they allow the development of low-cost or cost competitive systems compared with conventional technologies. In this paper, the current state of the art of plastic optical fiber technology will be reviewed, namely its main characteristics and sensing advantages. Several measurement techniques will be described, with a strong focus on interrogation approaches based on intensity variation in transmission and reflection. The potential applications involving structural health monitoring, medicine, environment and the biological and chemical area are also presented.

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Bend loss in large core multimode optical fiber beam delivery systems

Cited by 83 publications

References 14 publications

Bend loss in multimode chalcogenide fiber at infrared wavelengths

Bend loss in multimode chalcogenide fiber at infrared wavelengths

Body‐Monitoring and Health Supervision by Means of Optical Fiber‐Based Sensing Systems in Medical Textiles

Optical Sensors Based on Plastic Fibers

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