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Article
Reproducibility of splicer-based long-period fiber gratings for gain equalization
We fabricated long-period fiber gratings (LPFGs) using electric arc discharges. We observed that the fiber becomes slightly tapered due to longitudinal tension during the arc: this effect depends on the arc cu...
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Chapter
Optical Fiber Sensors for the Cultural Heritage
Two examples of optical fiber sensors for the protection of the cultural heritage were given. The varnished optical fiber could be used also as temperature sensor. In fact, thanks to the good temperature sensi...
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Chapter
The Stretch-and-write Technique for Fabrication of Fiber Bragg-grating Arrays
The photolithographic method with the improvement of the stretch-and-write technique was applied for the fabrication of fiber-Bragg grating arrays. This procedure allows to change the grating peak wavelength u...
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Chapter and Conference Paper
Optical Fibers for the Cultural Heritage II: The Monitoring of Lighting in Museum Environments
An optical fiber sensor for monitoring lighting in museum environments is presented. It is an extrinsic, intensity-modulated type sensor that uses a photochromic material as transducer. The prototype is operat...
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Chapter
Fiber Bragg Gratings as Temperature and Strain Sensors
A fiber Bragg grating (FBG) consists of a periodic modification in the refractive core index along a short section of a germanosilicate optical fiber. Photorefractive intracore fiber Bragg gratings are attract...
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Article
A control device for Nd:YAG laser radiation fibre-optic delivery systems
Medium- and high-power Nd:YAG lasers are widely used in many industrial processes and in several applications in the biomedical field. Kee** in mind the high power levels involved in these applications, impr...
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Chapter
Model for an Optical Fiber pH Sensor
The traditional methods for the pH determination are electrometric and colorimetric methods. In the first case, pH deter mination by glass electrodes, is based on a measurement of the electromotive force of a ...
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Chapter and Conference Paper
Extrinsic Optrode Fiber Optic Sensor for pH Measurements
Optical fiber chemical sensors are attracting a noticeable interest for a variety of applications (ranging from industrial processes control to biomedical analysis) and offer some important advantages upon tra...
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Chapter and Conference Paper
Optical Fiber Temperature Sensing in Medicine
During recent years many types of multimode fiber optic systems for temperature measurements have been proposed and few of them are now commercially available (1–7).
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Chapter
Rays in Tapered Waveguides
The study of propagation in optical dielectric tapered waveguides is reported. A numerical method based on ray optics and associated energy flux is applied in order to evaluate radiation characteristics of dif...
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Chapter and Conference Paper
Variable Section Optical Waveguides
The study of propagation in longitudinally dependent dielectric waveguides and in particular in tapered waveguides is of interest in a variety of applications that include natural as well as man-made guiding e...
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Chapter and Conference Paper
Hollow Waveguides for Long-Wavelength I.R. Radiation
The CO2 laser has been extensively used both in industrial and medical applications; however the provision of a flexible delivery system of the I.R. laser light to a target has been the most difficult problem. Up...
