Wavelength Division Multiplex Instructional Lab System with Polymeric Fibers for use in Higher Education (original) (raw)

Hands-on Educational Experimentation with LEDs, Optical Fibers and Photodiodes in a Modern Technology Dependent Society

In this paper we describe an experiment with LED circuit and photodiode circuit. We take measurements and study the device in both conditions: without and with optical fiber between LED and photodiode. With a second experiment, developed for demonstration purposes, we transport through optical fiber digital signal from transmitter of infrared light, suitably shaped, in corresponding receptor. We describe phenomena like light emission, the inverse square law of light emission, the photoelectric effect, the reflection and transmission of light. Also we mention the significance of LEDs, photodiodes and optical fiber applications in modern technology dependent societies.

Educational fiber optic transmission equipment with dedicated BER features

1992

We designed a low cost optical transmission system for use in undergraduate courses in physics and engineering. The system includes boards for bit error rate (BER) measurements, digital and analog transmitters and receivers, master clock, pseudo-random sequence, and noise generators. Programmable logic components were used for both, the BER meter and the pseudorandom sequence generator. The cost of the equipment and its design simplicity makes it suitable for most teaching laboratories.

Wavelength Division Multiplexing Over Plastic Optical Fiber Technology (WDM-POF)

This paper discusses the Wavelength Division Multiplexing (WDM) application over the Plastic Optical Fiber (POF) used for data and networks communications of selected equipments onboard a navy ship. Four different wavelengths are used to connect equipments throughout the ship for access by the user, namely; LAN connections, telephone line, CCTV video image and central video/audio entertainments network. Some network topologies possible to be used are explained and improvised mesh topology is studied as possible architecture to be used for this study. The equipments will be able to be controlled and monitored from three different control centers; the Bridge, the Machinery Cotrol Room (MCR) and the Combat Information Centre (CIC) for safety and security connection with redundancy feature, good performance and resilience connectivity. Some parameter such as output power and power losses in the networks were observed. The system promises an enhanced data transfer with the benefits of less overall ship’s weight and therefore will improve the speed and consume less fuel for new and future ship design or ship embarking life extension program.