Aerial Fiber Optics Opgw & Adss
Optical Fibers are thin long (km) strands of ultra pure glass (silica) or plastic that can to transmit light from one end to another without much attenuation or signal Loss (dB).
“The glass used to make Optical Fiber is so pure that if the Pacific Ocean was filled with this glass then we would be able to see the Ocean bottom form the surface..!!—Deepest point called Marina Trench, Pacific Ocean is all of just 13km deep…..!!!
This is to believed as repeater distance on long haul routes for Optical Fiber vary 50 to 150 km.
Working Optical Fibers.
The Light Source (Lazer/LED) at the transmitting (Tx) end is modulated by the electrical signal and this modulated energy is fed into the Optical Fiber.
At the receiving end (Rx) this light energy is made incident on photo-sensors (Photo-Diode-Electric) which convert the light signal back to electric signal.
Advantages of Fiber Optic:-
- Very high information carrying capacity.
- Less attenuation/loss (order of 0.2dm/km)
* Small diameter and light weight
* Low cost (Raw Material is sand…used to make OFC is free)
* Greater Safety and immune to EMI & RFI, Moister and corrosion.
* Flexible & easy installation
Product Details
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Product Description
"The glass used to make Optical Fiber is so pure that if the Pacific Ocean was filled with this glass then we would be able to see the Ocean bottom form the surface..!!"—Deepest point called Marina Trench, Pacific Ocean is all of just 13km deep…..!!!
This is to believed as repeater distance on long haul routes for Optical Fiber vary 50 to 150 km.
Working Optical Fibers.
The Light Source (Lazer/LED) at the transmitting (Tx) end is modulated by the electrical signal and this modulated energy is fed into the Optical Fiber.
At the receiving end (Rx) this light energy is made incident on photo-sensors (Photo-Diode-Electric) which convert the light signal back to electric signal.
Advantages of Fiber Optic:-
- Very high information carrying capacity.
- Less attenuation/loss (order of 0.2dm/km)
- Small diameter and light weight
- Low cost (Raw Material is sand…used to make OFC is free)
- Greater Safety and immune to EMI & RFI, Moister and corrosion.
- Flexible & easy installation
- Zero resale value (Theft is less)
- Difficult to tap fiber, so it is Secure.
- No cross talk and disturbance.
Disadvantages of Fiber Optic:-
- The Transmitting Equipments are very costly.
- OFC is delicate, So has to be handle with carefully.
- Last mile connectivity is not total fiberised due to cost of Subscriber equipment.
- End to end is not Totally Optical Domain so repeated electrical-Optical Conversion is needed.
- Optical Amplifiers, MUX-DEMUX, Splitters are still in development stages.
- Specialized tools required for tapping the OFC.
- Optical Splicing is a specialized technique & needs expertly trained manpower.
- Splicing and Testing equipments are very expensive as compared to copper.
Various types of Optical Fiber Cable:-
- OPGW
- ADSS
- Self Supporting Aerial Figure 8 type OFC
- Lashed Type OFC
- Underground/Direct Burried OFC
- Duct Type OFC
About the Company
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No. 53, Justice Chandra, Madhav Road, Kolkata - 700020, West Bengal, India
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