Fiber Optic Economics
One of the initial economic factors to consider when converting to fiber optics is the cost of replacing wire systems with fiber. Increased demand for optical fiber has brought the prices down within competitive range of copper. However, since transmitters, converters, optical repeaters and a variety of connecting hardware will be needed, the initial cost of changing over to fiber can be expensive. Increased demand, advances in the technology and competition have brought the prices down somewhat. Short term and long term gains should be considered when updating a communication system. In the short term it is often less expensive to continue using copper cabling for covering expanded communication needs. By simply adding more wire to an existing system, expanded needs can be covered. This avoids the expense of adding the transmitters and receivers needed for integrating optical fiber. Long-term needs, however, may require more expansion in the future.
In the long term it may be more cost effective to invest in conversion to fiber optics. This cost effectiveness is due to the relative ease of upgrading fiber optics to higher speeds and performance. It has already been seen in the industry as communication providers are wiring customers with optical fiber bandwidth that exceeds consumer bandwidth needs. This is in anticipation of future bandwidth needs. It is generally accepted that customers will need increased bandwidth as the information highway grows. Replacing copper with fiber today would avoid continuing investment in a soon to be outdated copper system.
Television and telephone companies hurry to build systems that will convert television and telephone technology and thus provide a one-server system for their customers. Fiber optics will play a pivotal role in this race since the bandwidth needed for providing an all-in-one service with television, telephone, interactive multimedia and Internet access is not available in much of the wiring of America. Competition for customers is a strong factor motivating communication networks to convert their systems over to fiber optics.
Competition is not only between providers of fiber optics networks. Recent developments and proposed plans in the satellite industry may have an effect on the use of fiber optics as a transmission medium. The satellite industry is proposing and building several systems that they say will provide the telecommunication services needed without the need for laying more fiber-lines. Like terrestrial cellular systems, satellites also have an advantage over fiber in that they can provide mobile access to telecommunications services. They can provide a level of global ubiquity that is not possible with fiber optics or with terrestrial cellular. Satellite services could potentially serve rural and undeveloped communities that may never see a fiber optic line come through the part of the world.
None of these satellite systems, however, can provide the bandwidth potential of fiber optics. Fiber optics has the proven ability to deliver more information per second. So, it is no wonder that satellite providers have not announced plans that could effectively provide television, telephone, interactive multimedia and Internet services into an all-in-one service. Evidently, tomorrow is with fiber optics.
- Л.П. Маркушевская, с.В. Шенцова, е.В. Соколова optics:
- Contents
- The History of Optics
- Understanding a printed text
- Comprehensive reading The History of Optics
- Check your understanding
- Exercise 2. Complete the sentences:
- Increase your vocabulary
- Chapter I Classical (Geometrical) Optics
- Comprehensive reading From the History of Geometrical Optics
- Check your understanding Exercise 1. True or false?
- Exercise 2. Choose the correct answer.
- Increase your vocabulary
- A virtual image …
- Language activity
- Unit 2 word-study
- Understanding a printed text
- Reading for precise information Nature of Light and Color
- Laws of reflection:
- Laws of refraction:
- Check your understanding
- 3 Laws
- Increase your vocabulary
- Language activity
- Unit 3 word-study
- Understanding a printed text
- Scan-reading Optical Instruments
- Check your understanding
- Increase your vocabulary
- Language activity
- Exercise 4. Summarize your knowledge of Past Simple or Past Continuous. Choose the correct tense.
- Unit 4 word study
- Understanding a printed text List of Terms:
- Reading and translating the text Lenses
- Check your understanding
- Increase your vocabulary
- Language activity
- Unit 5 word study
- Understanding a printed text List of Terms:
- Read the text and entitle it
- Check your understanding
- Increase your vocabulary
- Language acitivity
- Review of the chapter I
- Supplementary tasks
- Improve your translation practice task 1
- The History of the Telescope
- Exercise 1. Rearrange the sentences in the chronological order.
- Holography
- Illumination, never remove protective cover from the
- Астрономические наблюдения объектов в широком диапазоне длин волн
- Chapter II Fiber Optics Unit 1
- Comprehensive reading The History of Fiber Optics
- Check your understanding Exercise 1. Answer the following questions.
- Increase your vocabulary Exercise 1. Compare the two columns and find Russian equivalents.
- Exercise 2. Match the antonyms.
- Language activity Exercise 1. Summarize your knowledge of Passive Constructions and translate the following sentences.
- Fiber Optic Systems
- Fiber Optic Technology
- Check your understanding
- Exercise 2. Complete the sentences with words from the text.
- Increase your vocabulary
- Language activity
- Unit 3 word-study
- Understanding a printed text
- Reading and translating the text
- Check your understanding Exercise 1. Which title better suits the text?
- Increase your vocabulary
- Language activity
- Exercise 2. Which of the italicized words in each sentence is the predicate?
- Unit 4 word study
- Read – reread;
- Understanding a printed text
- Comprehensive reading Optical Fiber Applications
- Check your understanding
- Increase your vocabulary
- Language activity
- Rewiew of the chapter II
- Supplementary tasks
- Improve your translation practice task 1
- Fiber Optic Economics
- Exercise 1. Answer the questions.
- Exercise 2. Translate the following parentheses into Russian.
- How Optical Fibers Work
- Chapter III
- Word study
- Understanding a printed text
- Amplifier – усилитель
- Reading for discussion Maser-Laser History
- Check your understanding
- Increase your vocabulary
- Language activity
- Unit 2 word study
- Understanding a printed text
- Reading for precise information Types of Lasers
- Solid-State Lasers
- Gas Lasers
- Semiconductor Lasers
- Free-Electron Lasers
- Liquid Lasers (Dye Lasers)
- Chemical Lasers
- Check your understanding
- Increase your vocabulary
- Language activity
- Comprehensive reading Solid - State Lasers
- Semiconductor Lasers
- Check your understanding
- Increase your vocabulary
- Adjectives
- Language activity
- Unit 4 word-study
- Understanding a printed text
- Comprehensive reading Gas and Molecular Lasers Gas Lasers
- Fig.1. Construction of He-Ne laser
- Molecular Lasers
- Check your understanding
- Increase your vocabulary
- Language activity
- Exercise 3. Summarize your knowledge on non-Finite forms. Define the form of the underlined words (Infinitive, Participle - I, Participle - II, Gerund). Translate the sentences.
- Unit 5 word study
- Verb – noun
- Understanding a printed text
- Scan-reading Laser Applications
- Industry
- Scientific Research
- Communication
- Medicine
- Military Technology
- Laser Safety
- Check your understanding
- Increase your vocabulary
- Exercise 2. Translate the following word combinations with Participle II as an attribute.
- Language activity
- Exercise 3. Cross out “that”, “who”, “which”, “when” if one can manage without them. Underline the subject in the second sentence.
- Supplementery tasks
- Improve your translation practice
- Лазерная сварка
- Лазеры в медицине
- How a Laser Works The Basics of an Atom
- The Connection Between Atoms and Lasers
- Understanding a printed text
- Lasers in Communication
- Laser Uses
- Appendix I Химические формулы
- Appendix II
- Appendix III Business Communication
- I. Introduction. Writing and Speaking – Your Keys to Business Success.
- II. The job campaign
- Working Experience
- Curriculum vitae
- Education
- III. Business letters
- I. Introducing your firm (the body the message of a letter).
- II. Official Invitations
- III. Request
- IV. Claim, protest!
- V. Gratitude, thanks.
- VI. Regret, apology
- Supplementary reading appendix IV Albert Einstein
- Arthur l. Schawlow
- Charles h. Townes
- Aleksandr m. Prokhorov
- Nicolay g. Basov
- Ted Maiman and the world's first laser
- Dictionary
- Haze, n – туман, дымка
- Observe, V – наблюдать
- Optics, n – оптика, оптические приборы
- Literature