Daily Current Affairs : 29-November-2023
In recent times, the importance of fibre optics has surged, notably during the COVID-19 pandemic, where reliable internet connections became the lifeline for virtual communication.
Evolution of Fibre Optic Communication
Historical Roots: The roots of fibre optic communication stretch back over 60 years when physicist Charles Kao proposed the use of glass fibres as an optimal medium for telecommunication.
Working Principle: Optical fibres, constructed from slender glass strands, operate on the principle of total internal reflection. This innovative mechanism guides light through the glass, enabling signals to traverse significant distances with minimal loss of optical power.
From 19th Century Experiments to Mid-20th Century Breakthroughs: The historical evolution of fibre optic cables can be traced from early experiments with light guiding in the 19th century to the breakthroughs in the mid-20th century that paved the way for long-distance transmission. This journey showcases the persistent human pursuit of enhancing communication technology.
Current State of Fibre Optic Technology
Versatility in Digital Transmission: Optical fibres serve as versatile conduits for various forms of digital information. They efficiently transmit text, images, voices, and videos across long distances, nearly at the speed of light. This versatility positions fibre optics as a cornerstone in contemporary communication systems.
Crucial Roles Across Industries: The current state of fibre optic technology underscores its indispensable role in diverse fields. From telecommunication to medical science, laser technology, and sensing, optical fibres play a pivotal role, enhancing efficiency and reliability in various applications.
Important Points:
- Evolution of Fibre Optic Communication:
- Historical roots trace back over 60 years to Charles Kao’s proposal of glass fibres.
- Optical fibres, made of slender glass strands, rely on total internal reflection for signal transmission.
- Evolution from 19th-century light guiding experiments to mid-20th-century breakthroughs in long-distance transmission.
- Working Principle:
- Optical fibres guide light through glass strands using total internal reflection.
- Signals traverse significant distances with minimal loss of optical power.
- Current State of Fibre Optic Technology:
- Versatility in digital transmission: text, images, voices, and videos transmitted efficiently.
- Crucial roles across industries – telecommunication, medical science, laser technology, and sensing.
- Fibre optics integral to contemporary communication systems, enhancing efficiency and reliability.
Why In News
The importance of fibre optics has been increasing in recent times, especially during the COVID-19 pandemic when internet connections facilitated virtual communication; this trend underscores the critical role of high-speed, reliable data transmission in supporting remote work and online collaboration.
MCQs about Fibre Optics
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What is the primary working principle of optical fibres in communication?
A. Electromagnetic induction
B. Total internal reflection
C. Radiofrequency modulation
D. Conduction through metal wires
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Who proposed the use of glass fibres as a superior medium for telecommunication over 60 years ago?
A. Thomas Edison
B. Alexander Graham Bell
C. Charles Kao
D. Nikola Tesla
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What role did the mid-20th-century breakthroughs play in the evolution of fibre optic cables?
A. They introduced wireless communication.
B. They improved cable durability.
C. They enabled long-distance transmission.
D. They enhanced signal encryption.
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In the current state of fibre optic technology, what makes optical fibres versatile in digital transmission?
A. They use traditional copper wires.
B. They rely on electromagnetic waves.
C. They transmit information at the speed of sound.
D. They efficiently transmit text, images, voices, and videos at nearly the speed of light.
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