StudentShare solutions
Triangle menu

Optical Communication and Networks - Essay Example

The concept of wavelength division multiplexing (WDM) and DWDM has also been introduced. Finally, the latest trends in optical communication and networks are briefly explained.
Optical communication system is similar to any kind of communication system, as far as the basics are concerned. The major difference in optical and other communication models is the additional requirement of a source (for conversion of signal from electrical to optical domain), receiver (for conversion from optical to electrical domain) and use of fibre as media in place of conventional copper wire or microwave. The use of glass fibre or optical fibre features a number of advantages that make it a formidable media, in comparison to others.
One of the most important assets of optical communication is the availability of enormous potential bandwidth to the tune of hundreds of GHz. The potential cannot be fully harnessed owing to electrical domain limitation. However, technologies like WDM or DWDM are evolving to optimize the available bandwidth usage. Being fabricated from glass, the fibre does no have earth loop or interface problem as are evident in electrical media. The optical communication is immune to interference from radio frequency and electromagnetic radiations or EMP (electromagnetic pulses) as they act as dielectric waveguides. There are practically insignificant radiations from fibre which enhance security of signal in a communication system. Other advantages include low weight, small size, flexible, reliable, easily maintainable, low transmission losses and cost effective.
The requirement for capacity is increasing at a fast rate in the present day networks. Growth of worldwide web and Internet are the primary causes for this increase. Every four to six months, the need is almost doubling. Available broadband access technologies like Digital subscriber line (DSL), cable modems etc. provide bandwidths of 1Mbps and 28 to 56 kbps per user, respectively. With online businesses company networks with their distant locations and the clients, the bandwidth requirement is will soon rise to level where, the only solution would remain to switch to optical networks.
Optical networks can be broadly divided into two generations. The first generation optical networks were solely used to enhance capacity to stand alone communication links while; the second-generation networks encompass the issues of routing and switching.
In the subsequent paragraphs we will discuss optical communication and networks with reference to the various components and devices in greater details. We shall initially cover the basic theory behind transmission, attenuation and distortion of optical signal in the fibre.

Optical Transmission Basics
Optical fibre acts as a cylindrical waveguide with an inner core and outer cladding of differing refractive index as shown in Figure 1, core refractive index being greater than clad refractive index. The light traverses in the core as well as in the cladding. To illustrate the transmission of light, let's consider ray theory.

Figure 1: Structure of optical fibre (adopted from Senior, John M.)

The refractive index of ...Show more


Abstract The paper gives an overview of optical communication and its contribution towards high capacity networks. The merits of using fibre as medium in comparison to the electronic/electrical counterpart have been amply brought out. The paper explains the basic transmission theory on the basis of ray optics and brings out the causes of deterioration of optical signal while propagation…
Author : okunevanicholau
Optical Communication and Networks
Read Text Preview
Save Your Time for More Important Things
Let us write or edit the essay on your topic
"Optical Communication and Networks"
with a personal 20% discount.
Grab the best paper

Check these samples - they also fit your topic

Optical Fiber and WLAN
Wireless Ethernet networks were accepted several years ago, as traditional connectivity solutions were replaced by robust wireless connectivity solutions. Although, several industrial protocols utilized standardized Ethernet physical layer that facilitated automation protocols to be transmitted via wireless media Commercial off the Shelf (COTS) (Brandt, Piggin 2006).
12 pages (3000 words) Essay
Electronic communication
Business communications for instance is one of many operations and functions through which a business utilizes electronic communication. The use of electronic communication is evident in the daily operations of a business organization such as the use of email, websites and text messages to convey information to and from the managers by the employees.
4 pages (1000 words) Essay
Three Types of Major Networks
Such networks are generally privately owned networks within a single building, organization, factory and university or college campus. At times there reach is extended from about 200 meters to a few kilometers, but beyond
2 pages (500 words) Essay
Issues Concerning Optical networking and Equipment
The major components of optical link, that is, sources, amplifiers and receivers, as well as the optical network have been covered in the paper giving out principle
12 pages (3000 words) Essay
It is majorly used in communication between the various departments that are there in the organizational building. The other type is the Metropolitan Area Network which covers a wider geographical region like a city for
1 pages (250 words) Essay
Optical systems
In fact, R&D has made possible for it to get higher performance to follow with its low cost and ease of installation (The FOA, 2008; Paschotta, 2014). This report presents a detailed analysis of plastic optical fiber. This report will discuss basic
15 pages (3750 words) Essay
Data in the optical fibre is transmitted inside the core which allows light transmission. The core makes up about 96% of the diameter of the entire fibre. Compared to the glass fibre, the core of plastic optic fibre
15 pages (3750 words) Essay
clude a modulator & demodulator, a transmitter & receiver for transmitting and receiving the communicated message, and a channel for the transfer of the data (Optical Communication, 2014). The information or signal that is passed through optical communications can take place in
4 pages (1000 words) Essay
Optical systems
The cost consideration are making them more desired in their working. Internal structure of optical fibre constitute cylindrical strand coated with plastic. It is where the light passes through. The
7 pages (1750 words) Essay
Develop informal communication networks and roles in the workplace
Effective communication in the workplace enables organizations reach their set targets. It provides employees with information about their work and environment. Informal communication helps motivate employees
2 pages (500 words) Essay
Comments (0)
Click to create a comment
Let us find you another Essay on topic Optical Communication and Networks for FREE!
Contact us:
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • The Newest Essay Topics
Join us:
Contact Us