The Use of Fiber Optics in Communications Essay

Light waves are a form of electromagnetic waves, which consist of patterns of electric and magnetic energy. The visible spectrum is only a small part of the electromagnetic spectrum-the

Data security: Magnetic fields and current induction work in two ways, they just don’t generate noise in signal carrying conductors; they also let the information on the conductor to be leaked out. Since there are no radiated magnetic fields around optical fibers; electromagnetic fields are confined within the fiber. This makes it impossible to tap the signal being transmitted over fiber cable. Thus the fiber cable is the most secure medium available for carrying sensitive data.

Coaxial cable uses a single conductor in the middle of a cable and the central conductor is surrounded by an insulator which is called the dielectric. Coax cables have become obsolete. Unshielded twisted pair cabling, also known as UTP cabling, has become the most common used network cabling. UTP cabling consists of four twisted pairs of wire, which have a different number of twists per foot, all encased on one sheath. This cabling is graded by different categories. Category 5 is recommended for Ethernet speeds of 100 Mbps. Category 5e, for running gigabit Ethernet or 1000BaseT networks. Category 6 and Category 6a are used to give better performance at higher speeds. Fiber optic cable is wave guided or light guided because it guides the light waves along the length of the cable. Single mode fiber optic cable can operate over long distances. Because fiber allows one mode of light to propagate, light pulses put on the fiber keep their shape much longer. This allows the light pulses to travel much further without interfering with other

Video Conferencing: Video conferencing allows people from around the world to connect and talk to each other as though they are in the same room.

The new structure has been given a grant to make its network state of the art by making it a fiber optic network. The topics of discussion that will be mentioned in this paper are the hardware that will be necessary for the inside and outside of the building and how we would expand the fiber to an adjacent building if it is built. Another topic to be discussed will be describing the safety procedures that will be following during the installation.

In order to provide a network infrastructure to over 600 users on the TaxiPixi network infrastructure, Fiber optic cabling system will be implemented in the LAN design because it is one of the best transmission media options.

Fiber: A fiber cable is either multiple strands of fiber optic surrounded by insulation, or a single fiber strand surrounded by insulation.

Light passed through a transmission grating is often sent in all directions due to interference. The grating acts as a new wave source and causes the light to travel in different paths. Equation 1 below shows the relationship between path difference and light direction due to constructive interference. D represents the line spacing and sinƟ=a/c according to the drawing below.

Figure 3 plots the relative overall response of the Spectronic 20, the relative response of a phototube, and the relative lamp intensities as a function of wavelength. The Spectronic 20 response curve shows a maximum relative response at 512 nm with a transmittance of 88.3%. The phototube response curve shows a maximum relative response at 400 nm with a transmittance of 100%. This means the light source used in Part A emitted green light stronger than any other wavelengths and the phototube

Light is electromagnetic radiation, energy shown as a wave or a particle, that can be visually perceived as radiant energy.1 Light is measured by the wavelength and frequency. A wavelength is the distance from any point on one wave to the same point on the next wave and shown by lambda, λ.2 The different types of light begins with gamma rays and proceed to radio waves when increasing wavelengths are compared. Frequency is the number of crests per second and is expressed in hertz and shown as v. The pattern associated with light is indirectly related to the wavelength. The variability of light starting with gamma rays and ending with radio waves is connected by decreasing frequency. Frequency is independent of the wavelength and are both

Distance learning (education) has become an integral part of the education process over the past few decades and is growing in popularity as technology advances.(Willis 1992) describes distance education (as) "the organizational framework andprocess of providing instruction at a distance. Distance education takes place when ateacher and student(s) are physically separated, and technology…(is) used to bridge theinstruction gap." (Coutts 1996). Furthermore, "distance learning activities are designedto fit the specific context for learning, the nature of the subject matter; intended learningoutcomes, needs and goals of the learner, the learner's environment and the instructional echnologies and methods." (American

Light waves over the electromagnetic reach carry on in equivalent ways. Exactly when a light wave encounters a thing, they are either transmitted, reflected, devoured, refracted, stimulated, diffracted, or scattered depending upon the structure of the article and the wavelength of the light.

Fiber optics is a cable that is quickly replacing out-dated copper wires. Fiber optics is based on a concept known as total internal reflection. It can transmit video, sound, or data in either analog or digital form . Compared to copper wires it can transmit thousands of times more data (slide 2) . Some of its general uses are telecommunications, computing, and medicine.

With today’s science, light becomes more specifically perceived as a spectrum. The specific name for this spectrum is the electromagnetic spectrum, which contains many types of waves (NASA, Electromagnetic Spectrum). In Figure 2, the spectrum shows a variety of wavelengths with specific wavelengths classified by its length. The range of wavelengths humans can see wavelengths that are around 400 – 700 nanometers (nm) as colors while all other electromagnetic waves are simply blind to humans. The interesting classes for light that are used to measure are microwave and infrared light. The laser is

On the Contrary, a properly designed high-index single-ring fiber can support only the radially fundamental modes. It leads to the potential Reduction of the crosstalk induced during mode excitement. To multiplex multiple OAM modes simultaneously, the number of the Eigen modes supported by the fiber should be increased by increasing either the core radius or the refractive index difference between the core and cladding. In this Theory, one dimensional mode