Optical Communication : A Form Of Telecommunication System

The non-electric telegraph was invented by Claude Chappe in 1794. This system was visual and used a semaphore, an alphabet based on flag language, and depended on a line of sight for communication. This “optical telegraph” was replaced by the electric telegraph, eventually.

Communication is the sending and receiving messages and information between two or more people. The person receiving the information is called the receiver and the person sending the message is referred to as the sender. The information conveyed can include instructions, ideas, facts, concepts, beliefs, opinions and even emotions. Effective communication occurs if the receiver understands the exact information or idea that the sender intended to transmit.

In the 1830s and the 1840s the telegraph was developed by Samuel Morse, Sir William Cooke, Sir Charles Wheatstone, Leonardo Gale, and Alfred Vail. However, people had to communicate before this invention. Ancient civilizations would use the land’s resources to communicate. One tactic they utilized was smoke signals. One inherent problem with the use of fire to communicate is the weather. Additionally, another way of communication was the use of the semaphore. In the 1790s the semaphore was developed. The semaphore used multiple hilltop stations. On these stations had movable arms with the ability to signal letters as

Communication is all types of communicate with each other .We can communicate by speaking, there are several languages, we can send messages,written, letters,magazines ,and books. To people who can not speak, have nonverbal communication, messages, eye contact,body language .

All goals must be measurable to then measure the progress towards the successful outcome, to measure progress is to monitor and access success and achievement.

Communications operation allows the functions of input, output, storage and processing to be completed from a distant area. Two examples of communications would be modem and wireless router.

In the start of WWII that nations came up with many ways to communicate to each other without being intercepted by the enemy.Some ideas/inventions used during World War II included foot, mounted, motorcycle, automobile, airplane, homing pigeons, and the messenger dog. Along with physically going to deliver a message they also had made visual messages. Which included flags, panels for airplanes, lights, and pyrotechnics. But when they didn't want to use those ways to signal messages they would send the message electronically. Which included telephone, telegraph service, and the printing telegraph.

Optical network is designed to transmit digital signals in the form of pulses of light. Optical fiber is used as medium for transmission. Optical fiber is a thin, flexible, transparent fiber (glass or plastic) that acts as a waveguide to transmit light between the ends of the fiber. Optical fiber consists of a central glass core surrounded by a cladding layer whose refractive index is slightly lower than the core index. Such fibers are generally referred to as step index fiber to distinguish them from graded index fiber in which the refractive index of the core decreases gradually from center to core boundary. Working principle for transmission is total internal reflection (TIR).

In order for successful communication, the sender speaks their thoughts, which are spoken, written, or shared through gestures. The communication medium can be audio, electronic, or just close contact between the sender and receiver. The receiver(s) acquires by listening, reading, or watching. If this process fails at any point, then communications fail.

Communication is passing information from one place to another, which is something people do every day in different ways. People communicate in order to be able to express themselves and to connect to those around them. They communicate at home with family and friends and fellow staff members at work. There is many different ways of communicating such as non-verbally, verbally and whether it is done formally or informally.

In the 1800’s, the telegraph was the fastest way of communicating over a long distance. The only problem was if you wanted to send a message to someone, you would have to take to the post office and have an operator send that message for you. The operator would use morse code to

Firstly, an optical fiber is flexible and transparent fiber which is made of drawing glass or plastic. Optical fibers have a diameter that is slightly thicker than that of a human hair. Most optical fibers used in communication have the diameter of 0.25 mm to 0.5 mm including outer coating. Optical Fibre communication takes place between 0.8 micrometers to 1.7 micrometers of a wavelength of the electromagnetic

Since the beginning of time, people have always been looking for means of communication, but a way to communicate in a fast and easy way. In earlier times, Egyptians carved on rocks, leaving records for the next civilization. The Incans of South America knotted several colored pieces of string in a specific pattern and had a messenger run to the next village to deliver it. Many wrote messages on paper to be delivered by a messenger and some simply sent a messenger to deliver the message orally. Of course, there were many problems with these means of communication. If one just sent a messenger, it was easy for the messenger to lose communication in the traveling process, or one could misplace a written message. And of course these messages

Light enters one end of the fiber from a light bulb, laser, or some other source, and travels essentially unimpeded all the way to the length of the fiber where it is intercepted by a photosensitive detector such as an electronic device or even the human eye. The distance of travel varies according to the use to anywhere from just a few inches to over one-hundred and fifty miles. Fiber optic cable can transmit large amounts of information over one-hundred and fifty miles almost instantaneously. “While it takes five hours to transmit the contents of an encyclopedia over copper wires, the entire work can be transmitted in less than a minute over fiber optics” (Yawn PG).

Means of communication has evolved over the years. Communication which started with the smoke signals, sending messages tied to pigeons feet, telephones, telegraphs, postal mails, emails, cellphone, internet, blogs, social network, smartphones and the evolution is still on and there is more is in store as the possibilities seem endless. Only the future will tell the direction it is taking.