This brilliant experiment shows how fiber optic cables. Theory, experiment, and application of optical fiber etching. The fiber optic data link consists of a transmitter which converts an electrical signal to a light signal, an optical fiber. Measuring speed of light science experiment pcbased oscilloscope. Consider an optical fibre having a core of refractive index n 1 and cladding of refractive index n 2. Well all be using the same carrier frequency because well all be using the same color led. Fiber optics can also use light to carry information, much like copper wires carry. Align the coupler and the hene laser so that the laser beam shines along the axis of the f9l6. The optical fiber mainly consists the following six parts as shown in figure core.
Students may use the kit for a science project, while hobbyists can use. Optical fibers 3 lab periods objective stripping and cleaving of optical fibers for integration into optical devices. We have arranged them in order but feel free to navigate around as you like. To familiarize the student with the experimental pro. Optical fiber communications, which operate in the.
Theory, experiment, and application of optical fiber etching article pdf available in applied optics 5124. To study the 1 laser characterization as power versus wavelength. Mount both the ends of the optical fiber on the fiber holders. Sep 26, 2018 today, gastroscopes as these things are called are just as important as ever, but fiber optics continues to spawn important new forms of medical scanning and diagnosis. Fiber optics, the science of transmitting data, voice, and images by the passage of light through thin, transparent fibers.
Fiber optics lab manual preface this series of fiber optics laboratory experiments was developed by professor elias awad for the foa under a nsf grant. Fiberoptic lines have revolutionized longdistance phone calls, cable tv and the internet. Fiberoptic lines are strands of optically pure glass as thin as a human hair that carry digital. The aim of this experiment is giving the skills for splice the glass optical fibers. Fiber optics for teachers an introduction and classroom demos. Several laboratory writeups suggested that the students do the experiment with more than one type of fiber.
Mount laser source, objective and screen on the respective holders as shown in fig. Pdf based on fiber bragg grating fbg, an online monitoring system for the etching process of optical fiber in a hydrofluoric hf acid solution has. Aug 20, 2012 theory, experiment, and application of optical fiber etching article pdf available in applied optics 5124. In reallife practice, the components may change, but the principles remain the same.
Light can travel through these fibers over long distances. A ray which enters the fiber with an angle greater than the acceptance angle will be lost in the cladding. Fee free to copy the experiment writeups for use in your lab. A cylinder or rod of transparent material forming a core surrounded by an external cladding with a slightly different material. Instead of using electricity through wires, fiber optic cables use light traveling through a clear fiber to carry phone signals, etc. The contents of the kit and a guide to interpreting the setup drawings are included in the following two pages. Availability of plastic optical fiber pof the plastic optical fiber used in some of these experiments is available for science distributors. Cut 1 to 2 mm off the end of the fiber with the blade, using the alignment kit. Diode laser source, photodetector, multimeter, microscope objective, fiber holders 2 nos.
Fiber optic ad kit is an ideal vehicle for instructors, students or hobbyists to explore the fascinating world of fiber optic communications. Oct 15, 2015 we hear about fiber optics all the time its in the news whenever we hear articles about high tech, the internet and communications, and many communities are getting fiber to the home. The first transatlantic telephone cable with optical fibre in 1988. Fiber optics is also the basis of the fiberscopes used. Jun 06, 2017 this brilliant experiment shows how fiber optic cables bend light.
An american national standard necafoa 3012009 standard for installing and testing fiber optics published by national electrical contractors association. Basics of fiber optics mark curranbrian shirk fiber optics, which is the science of light transmission through very fine glass or plastic fibers, continues to be used in more and more applications due to its inherent advantages over copper conductors. It is a micron 1mm pof available from several suppliers. The fiber can carry light through twists and turns just like copper wire carries electricity. Instructors will find this kit useful as a selfcontained handson fiber optics course. We hear about fiber optics all the time its in the news whenever we hear articles about high tech, the internet and communications, and many communities are getting fiber to. Lu, development and experiment of a novel optical fiber pressure sensor, in advanced photonics 2015, osa technical digest online optical society of. Measurement of the numerical aperture na of multimode fibers and of the beam profile of a singlemode fiber. It is intended to introduce students in technical high schools and colleges to the technology of fiber optics.
Mitra university of rhode island kingston, rhode island wholesale book dealers quality service supplied by international service company 333 fourth avenue indialantic, florida 32903, u. A typical glass fiber consists of a central core material. Fiber optics lab experiments edwdm kit,edcom kit, edlase. Fiber optics lab experiments edwdm kit,edcom kit, edlase kit, edamp kit, light runner attenuation measurement 1. Buy fiber optics through experiments 3rd ed by pdf online. Unlike other wave phenomena such as sound, or surface waves, it wasnt clear what the medium was that supported light waves. Even though the fiber is clear, the light stays inside until it reaches the end. Upon completing the activities, you will have gained a better understanding of fiber optics from having worked with real fiber optics hardware and learning techniques, and from gaining handson experience. The core medium refractive is always greater than the cladding refractive index. Fiber optics is also the basis of the fiberscopes used in examining internal parts of the body. Therefore, special attention is paid to cutting and polishing the ends of a fiber cable. Undergraduate experiments in optics employing a fiber optic version of the machzehnder interferometer adorns flores, mario fiores, kees karremans and ben zuidberg optoelectronics laboratory, department of physics, university of san carlos, cebu city 6000, philippines abstract. If this requirement is not fulfilled due to the lack of. The center of the fiber where the light is transmitted.
Fibre optics rely on the process of total internal reflection to transmit data encoded as pulses of light at high speed. It follows a helical trajectory confined within a cylindrical shell of radii r and a. One of the latest developments is called a lab on a fiber, and involves inserting hairthin fiber optic cables, with builtin sensors, into a patients body. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. The use of the f916 fiber coupler to couple light from a hene laser into a fiber is illustrated in fig 2. Adjust the condenser to obtain a straight beam of light. Undergraduate experiments in optics employing a fiber optic.
Complete steps 1 through 3 below for both ends of a 30cm fiber. Put the universal mirror on the table, at side toward the light. Microwave optics system equipment the complete microwave optics system consists of the microwave optics system wa9314c and the microwave accessory package wa9315. You hear about fiberoptic cables whenever people talk about the telephone system, the cable tv system or the internet. Fiber geometry an optical fiber is illustrated in fig. This brilliant experiment shows how fiber optic cables bend light. This all seems to be a funny introduction to a fiber optics lab, but fiber optics can be viewed as a form of am communication. In telecommunications, fiber optic technology is used to link computers within local area networks.
The apparatus includes one experiment, along with descriptions of components, a glossary of terms commonly encountered in fiber optics, and a list of. This ocw supplemental resource provides material from outside the official mit curriculum. Physics of fiber optics edited by bernard bendow rome air development center hansom afb, massachusetts shashanka s. These physical variations cause changes in the amount of coupled light which travels down the optical fiber and is absorbed by the phototransistor. Download fiber optics through experiments 3rd ed by pdf online. Optical communication systems and testing and analysis. Study and measurement of numerical aperture of optical fiber. This term is commonly used in the fiber optics industry to express wavelength or frequency of transmitted light.
Numerical aperture of plastic fiber experimental setup procedure. Optical fibers operate at 1014 hz to 1015hz frequency range. This brilliant experiment shows how fiber optic cables bend. Development and experiment of a novel optical fiber pressure. Thin strands of highly transparent glass or sometimes plastic that guide light. The theory of optical fibres these few pages will explain the concepts behind optical fibres and how they work. Pdf measurement of the attenuation of the optical fiber. To acquaint the student with loss in optical fibers, particularly, spectral loss.
The wave model of light has one serious drawback, though. Fiber optic to pc interface db 25 serial ports from your study of the r s232 standard, you know that pin 2 of the pc serial port is the transmit data pin, and when idle this pin will be marking. Monitor the transmitted pulse at channel a on the pico adc and the received pulse at channel b. Fiber optics lab manual instructors manual the fiber optic. No previous experience in fiber optics is required. Fiber optics is a method of delivering light through clear, glass wires, or fibers. Find at least two common diameters of core and cladding used in communicationgrade optical fibers. Another way that fiber optics have impacted our world and the computer science world is communication between two computers.
Basic optics experiments 1 introduction this chapter describes 6 experiments in basic optics that can be carried out using the cornelsen student optics kit, shown above, and a hene laser. Fiber optics lab experiments edwdm kit,edcom kit, edlase kit. Align the coupler and the hene laser so that the laser beam shines along the axis of the f9l6 fiber coupler mount a 20x microscope objective in the f9l6. Study and measure characteristics of fiber optic leds and photo. Giving it a name the luminiferous aether didnt help. Based on fiber bragg grating fbg, an online monitoring system for the etching process of optical fiber in a hydrofluoric hf acid solution has been designed. The variation curves of the wavelength shifts of fbgs with etching time at three different temperatures have been obtained and analyzed theoretically. Pdf theory, experiment, and application of optical fiber etching. The purpose of this article is to provide the nontechnical reader with an overview of. Today, gastroscopes as these things are called are just as important as ever, but fiber optics continues to spawn important new forms of medical scanning and diagnosis. To measure the numerical aperture na of an optical fiber with the help of fiber optic apparatus and hence to deduce vnumber for the optical fiber. I got the idea for this weeks experiment while reading about fiber optics.
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