09-04-2011, 09:33 AM
Submitted
Sana Rao
SIR TiSMAN PASHA
Sana29.ppt (Size: 1.89 MB / Downloads: 117)
HISTORY
Alexander Graham Bell patented an optical telephone system called the photo phone in 1880 .
That same year, William Wheeler invented a system of light pipes.
WHAT ARE OPTICAL FIBERS ?
Optical Fibers are thins long (km) strands of ultra pure glass (silica) or plastic that can to transmit light from one end to an other.
Basic Information
What is Optical Fiber Cable?
Optical cables used to transmit light signals over long distances.
It has basic three parts:
Core:
Cladding
Coating:
Working of Optical fibers?
TX
RX
Principle of operation
Dielectric (nonconducting ) that transmits light along its axis
Total internal reflection.
Refractive index
Step-index fiber
Graded-index fiber.
Optical Fiber Classification
Can be classified in a number of ways
On the basis of manufacturing
On the basis of profile
Types of Optical Fiber
There are two basic types of fiber:
Multi Mode Optical Fiber:
Used to transmit many signals per fiber (Multi Mode generally are used for in computer networks, LAN applications)
Single Mode Optical Fiber:
Used to transmit one signal per fiber (Single Mode generally are used for in telephones and cable TV applications)
Types of fiber optic cable of structures
Glass Optical Fiber:
Glass fiber-optic cable has a Glass core and cladding.
Plastic Optical Fiber (POF):
Plastic fiber-optic cable has a plastic core and cladding.
Plastic Coated Silica Cable:
(PCS). PCS fiber-optic cable has a Glass core and Plastic cladding.
APPLICATIONS OF OPTICAL FIBERS
Telephone Systems
Internet
Video Feeds
Medical Operations
Home Theater Systems
Optical fiber communication
Optical fiber can be used as a medium for telecommunication and networking because it is flexible and can be bundled as cables .
Over short distances.
USES
Medical
Defense/Government
Data Storage
Telecommunications
Fiber is laid and used for transmitting and receiving purposes
Networking
Used to connect users and servers.
Industrial/Commercial
Broadcast/CATV
ADVANTAGES OF OPTICAL FIBERS
VERY HIGH INFORMATION CARRING CAPACITY.
SMALL IN DIAMETER AND SIZE & LIGHT WEIGHT
LOW COST AS COMPARED TO COPPER
GREATER SAFETY
ZERO RESALE VALUE
FIBER OPTIC CABLE ADVANTAGES OVER COPPER:
• SPEED: Fiber optic networks operate at high speeds - up into the gigabits
• BANDWIDTH: large carrying capacity
• DISTANCE: Signals can be transmitted further without needing to be "refreshed" or strengthened.
• RESISTANCE: Greater resistance to electromagnetic noise such as radios, motors or other nearby cables
• MAINTENANCE: Fiber optic cables costs much less to maintain.
Disadvantages of Fiber Optic Cabling
Adding additional nodes is difficult
Cost of transmission equipment is Higher than copper
Cost of installation is Higher than copper
Difficult to Install
Expensive over short distance (less 5 km)
Requires highly skilled installers
Sana Rao
SIR TiSMAN PASHA
![Microsoft PowerPoint Document .ppt](https://seminarproject.net/images/attachtypes/ppt.gif)
HISTORY
Alexander Graham Bell patented an optical telephone system called the photo phone in 1880 .
That same year, William Wheeler invented a system of light pipes.
WHAT ARE OPTICAL FIBERS ?
Optical Fibers are thins long (km) strands of ultra pure glass (silica) or plastic that can to transmit light from one end to an other.
Basic Information
What is Optical Fiber Cable?
Optical cables used to transmit light signals over long distances.
It has basic three parts:
Core:
Cladding
Coating:
Working of Optical fibers?
TX
RX
Principle of operation
Dielectric (nonconducting ) that transmits light along its axis
Total internal reflection.
Refractive index
Step-index fiber
Graded-index fiber.
Optical Fiber Classification
Can be classified in a number of ways
On the basis of manufacturing
On the basis of profile
Types of Optical Fiber
There are two basic types of fiber:
Multi Mode Optical Fiber:
Used to transmit many signals per fiber (Multi Mode generally are used for in computer networks, LAN applications)
Single Mode Optical Fiber:
Used to transmit one signal per fiber (Single Mode generally are used for in telephones and cable TV applications)
Types of fiber optic cable of structures
Glass Optical Fiber:
Glass fiber-optic cable has a Glass core and cladding.
Plastic Optical Fiber (POF):
Plastic fiber-optic cable has a plastic core and cladding.
Plastic Coated Silica Cable:
(PCS). PCS fiber-optic cable has a Glass core and Plastic cladding.
APPLICATIONS OF OPTICAL FIBERS
Telephone Systems
Internet
Video Feeds
Medical Operations
Home Theater Systems
Optical fiber communication
Optical fiber can be used as a medium for telecommunication and networking because it is flexible and can be bundled as cables .
Over short distances.
USES
Medical
Defense/Government
Data Storage
Telecommunications
Fiber is laid and used for transmitting and receiving purposes
Networking
Used to connect users and servers.
Industrial/Commercial
Broadcast/CATV
ADVANTAGES OF OPTICAL FIBERS
VERY HIGH INFORMATION CARRING CAPACITY.
SMALL IN DIAMETER AND SIZE & LIGHT WEIGHT
LOW COST AS COMPARED TO COPPER
GREATER SAFETY
ZERO RESALE VALUE
FIBER OPTIC CABLE ADVANTAGES OVER COPPER:
• SPEED: Fiber optic networks operate at high speeds - up into the gigabits
• BANDWIDTH: large carrying capacity
• DISTANCE: Signals can be transmitted further without needing to be "refreshed" or strengthened.
• RESISTANCE: Greater resistance to electromagnetic noise such as radios, motors or other nearby cables
• MAINTENANCE: Fiber optic cables costs much less to maintain.
Disadvantages of Fiber Optic Cabling
Adding additional nodes is difficult
Cost of transmission equipment is Higher than copper
Cost of installation is Higher than copper
Difficult to Install
Expensive over short distance (less 5 km)
Requires highly skilled installers