FIBRE OPTIC COMMUNICATIONS TRAINING SYSTEM (original) (raw)

Re-inventing the fiber-optic textbook: a proposal

Optics Education and Outreach IV, 2016

It's time to reinvent the textbook to meet the needs of today's students, educators, and self-study readers. Students aren't buying them, and authors and publishers have slowed or stopped revising them keep up with new technology and new pedagogy. We want to demonstrate new possibilities by completely overhauling Understanding Fiber Optics, an introduction to fiber optics originally written by J.H. for self-study and later republished as a textbook for technician training. After five editions that sold over 100,000 copies, its page count nearly doubled and its price soared more than tenfold from its original $16.95. We envision a modular structure to meet the needs of students and instructors. Basic concepts will be covered at an introductory level in a "core book" of some 200-250 pages, suitable for self-study, STEM programs at the high school level, and technician training. Additional separate modules primarily intended for instructors will cover details, such as how to install connectors. All materials will be distributed electronically at low cost, and will include interactive demonstrations, animations, simulations, and audio and video supplements explaining key concepts. Our goal is to keep the best aspects of a well-written and well-illustrated textbook, take advantage of new tools for presenting material to students, and make the whole package readily accessible and affordable to students, instructors, and anyone else wanting a working knowledge of fiber optics. We are developing a proposal to achieve these goals, and looking for partners to help us develop, test and evaluate instructional materials.

OPTICAL FIBER COMMUNICATION SYSTEM

The visible optical carrier waves or light has been commonly used for communication purpose for many years. Alexander Graham Bell transmitted a speech information using a light beam for the first time in 1880. Just after four years of the invention of the telephone Bell proposed his photophone which was capable of providing a speech transmission over a distance of 200m. In the year 1910 Hondros and Debye carried out a theoretical study and in 1920 Schriever reported an experimental work. Although in the early part of twentieth century optical communication was going through some research work but it was being used only in the low capacity communication links due to severe affect of disturbances in the atmosphere and lack of suitable optical sources. However, low frequency (longer wavelength) electromagnetic waves like radio and microwaves proved to be much more useful for information transfer in atmosphere, being far less affected by the atmospheric disturbances. The relative frequencies and their corresponding wavelengths can be known from the electromagnetic spectrum and it is understandable that optical frequencies offer an increase in the potential usable bandwidth by a factor of around 10000 over high frequency microwave transmission. With the LASER coming into the picture the research interest of optical communication got a stimulation. A powerful coherent light beam together with the possibility of modulation at high frequencies was the key feature of LASER. Kao and Hockham proposed the transmission of information via dielectric waveguides or optical fiber cables fabricated from glass almost simultaneously in 1966. In the earlier stage optical fibers exhibited very high attenuation (almost 1000 dB/km)which was incomparable with coaxial cables having attenuation of around 5 to 10dB/km. Nevertheless, within ten years optical fiber losses were reduced to below 5dB/km and suitable low loss jointing techniques were perfected as well. Parallely with the development of the optical fibers other essential optical components like semiconductor optical sources (i.e. injection LASERs and LEDs) and detectors (i.e. photodiodes and phototransistors) were also going through rigorous research process.

Fiber Optic Laboratory Development Model in Vocational High School

Teknologi dan Kejuruan: Jurnal Teknologi, Kejuruan, dan Pengajarannya

Technological developments make telecommunications networks through internet access an urgent matter due to the increasing human need for communication. The purpose of this study was to describe the development model of a fiber optic laboratory in order to improve students and teachers’ competency. This research used a descriptive qualitative case study method at Public Vocational High School (PVHS) of Dwija Bhakti 1 Jombang. The results stated that the fiber optic laboratory development model is used to print graduates to have competencies that are in accordance with their fields and are expected to be able to compete in the industrial world. Schools collaborate with industry through the provision of fiber optic laboratories as an effort to improve these competencies. By conducting several stages, namely applying the MoU, affording the tools, branding and mocking-ups. In addition, there are teacher training and certification activities followed by curriculum implementation, student...

Optical Fiber: A Tool for Modern Communication

Data communications sometimes are slow. Often information gets leaked or may even get tapped. Data often is lost while being transferred from one place to another between components. Presence of noise leads to reduction of clarity of video on TV sets. There is a solution which eliminates many of these problems. The solution is optical fibre cable communication. Due to its speed, data securing capacity and lesser distortion of signals it is widely used means of communication. Demand of optical fiber communications are increasing rapidly. The working of optical fibre, its advantages, disadvantages, and applications are discussed in this article.

An optical communication design laboratory

IEEE Transactions on Education, 1999

A senior-level design laboratory course is described, in which an optical fiber communication network is expanded or improved by successive generations of students. In this evolutionary approach, student teams base their work on the final written reports of students in previous course offerings. In addition to its primary goal of providing a high-level technical experience, the course requires multidisciplinary teamwork and provides incentive for the development of effective oral and written communication skills. Results of four offerings of the course are presented.