Optical Fibre Cable Project for Andaman and Nicobar Islands

Most of you might be acquainted with the optic fiber – based telecom connectivity initiative between Chennai and Andaman & Nicobar Islands worth 1,224 Crore inaugurated by Prime Minister Narendra Modi. “It will facilitate ease of living. Tourists may stay longer in Andaman, and it will provide more job opportunities locally,” said Modi. “The digital infrastructure deployed today would help in improving telecom connectivity in Andaman & Nicobar Islands,” said telecom minister Ravi Shankar Prasad. “Between Chennai and Port Blair, there is deep sea at some places and despite challenges, this initiative was completed in record time.” Airtel became the first telco to launch its 4G services on the islands. The connectivity programme was funded by the Universal Service Obligation Fund (USOF) while state-run Telecommunications Consultants India Ltd acted as a technical consultant for the initiative.The undersea cable measuring 2,313 kms has been laid between Chennai and Port Blair, and will cover seven islands of A&N Islands, other than Port Blair including Swaraj Dweep (Havlock), Long Island, Rangat, Little Andaman, Kamorta, Car Nicobar and Greater Nicobar.This will provide up to Port Blair 400 Gb/s speed of Internet and for other islands 200 Gb/s speed will be provided.Let us dive deep into it to unleash various attributes of optical fiber and the project undertaken by PM Modi.

WHAT IS OPTICAL FIBRE?

 

The optical Fiber Technology is a contemporary approach towards transmission of data, voice and images using light pulses travelling along a long fiber which is predominantly made of plastic or glass. An ideal glass optical fiber has a diameter of 125 micrometres (μm), or 0.125 mm (0.005 inch). This is actually the diameter of the cladding, or outer reflecting layer. The core, or inner transmitting cylinder, may have a diameter as small as 10 μm. It uses the process of total internal reflection for the propagation of light rays within the core of the fiber for longer distances with remarkably little reduction in its intensity. Also, optical fibers are absolutely unaffected by electromagnetic interruptions. To sum it up, optical fiber transmits “data” by light to a receiving end, where the light signal is decoded as data. Therefore, fiber optics is actually a transmission medium – a “pipe” to carry signals over long distances at very high speeds.

APPLICATION

·       Telecommunications     

·       Local area networks (LANs)

·       Industrial control systems

·       Avionic systems

·       Military command, control, and communications systems

TOTAL INTERNAL REFLECTION

ADVANTAGES OF OPTICAL FIBRE

  • Economical and cost-effective
  • Thin and non-flammable
  • Less power consumption
  • Less signal degradation
  • Flexible and lightweight