logging in or signing up optical fibers Fawaid Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 726 Category: Science & Tech.. License: All Rights Reserved Like it (3) Dislike it (0) Added: July 23, 2010 This Presentation is Public Favorites: 0 Presentation Description it gives you a brief overview of optical fibers Comments Posting comment... By: dineshdhakar (16 month(s) ago) hi... please send this my email.id................... devendrasingh29@gmail.com Saving..... Post Reply Close By: Fawaid (16 month(s) ago) hello, Singh i have sent it on ur email id.......... Saving..... Edit Comment Close Premium member Presentation Transcript OPTICAL FIBERS : OPTICAL FIBERS Agenda: : Agenda: Introduction Working Types Applications Advantages Disadvantages References Introduction: : Introduction: Optical fibers are long, thin strands of very pure glass usually 120 µm in diameter. They are arranged in bundles called optical cables and used to transmit light signals over long distances. Parts of Optical Fiber : Parts of Optical Fiber Core – thin glass center of the fiber where light travels. Cladding – outer optical material surrounding the core. Buffer Coating – plastic coating that protects the fiber. Transmission of Light Through Optical Fibers : Transmission of Light Through Optical Fibers Total Internal Reflection Total Internal Reflection : Total Internal Reflection The angle of the light is always greater than the critical angle. Cladding does not absorb any light from the core. The extent that the signal degrades depends upon the purity of the glass and the wavelength of the transmitted light. Fiber Optics Systems has : Fiber Optics Systems has Optical Receiver Optical Regenerator Optical Fiber Transmitter Types of Optical Fibers : Types of Optical Fibers Optical fibers come in two types: Single-mode fibers Multi-mode fibers Single-mode fibers : Single-mode fibers Single-mode fibers are used to transmit one signal per fiber (used in telephone and cable TV). They have small core (9 microns in diameter) and transmit infra-red light from laser. Multi-mode fibers : Multi-mode fibers Multi-mode fibers are used to transmit many signals per fiber (used in computer networks). They have larger cores (62.5 microns in diameter) and transmit infra-red light from LED. Wavelength Division Multiplexing : Wavelength Division Multiplexing Signals with different wavelengths are combined, transmitted together, and separated again. Time Division Multiplexing : Time Division Multiplexing Several optical signals are combined, transmitted together, and separated again based on different arrival times. Applications : Applications Carry plain old telephone service (POTS) For transmission of data Transmitting broadband signals In the biomedical industry Non-Communication Applications (sensors etc…) Advantages : Advantages Less Expensive Thinner High Carrying Capacity Less Signal Degradation Light Signals Low Power Digital signals Light Weight Disadvantages : Disadvantages Fiber optics are that the cables are expensive to install. The termination of a fiber optic cable is complex and requires special tools. They are more fragile than coaxial cable. References : References http://www.authorstream.com/ http://www.howstuffworks.com/ http://www.wikipedia.com/ http://www.osun.com/ Thank you You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
optical fibers Fawaid Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 726 Category: Science & Tech.. License: All Rights Reserved Like it (3) Dislike it (0) Added: July 23, 2010 This Presentation is Public Favorites: 0 Presentation Description it gives you a brief overview of optical fibers Comments Posting comment... By: dineshdhakar (16 month(s) ago) hi... please send this my email.id................... devendrasingh29@gmail.com Saving..... Post Reply Close By: Fawaid (16 month(s) ago) hello, Singh i have sent it on ur email id.......... Saving..... Edit Comment Close Premium member Presentation Transcript OPTICAL FIBERS : OPTICAL FIBERS Agenda: : Agenda: Introduction Working Types Applications Advantages Disadvantages References Introduction: : Introduction: Optical fibers are long, thin strands of very pure glass usually 120 µm in diameter. They are arranged in bundles called optical cables and used to transmit light signals over long distances. Parts of Optical Fiber : Parts of Optical Fiber Core – thin glass center of the fiber where light travels. Cladding – outer optical material surrounding the core. Buffer Coating – plastic coating that protects the fiber. Transmission of Light Through Optical Fibers : Transmission of Light Through Optical Fibers Total Internal Reflection Total Internal Reflection : Total Internal Reflection The angle of the light is always greater than the critical angle. Cladding does not absorb any light from the core. The extent that the signal degrades depends upon the purity of the glass and the wavelength of the transmitted light. Fiber Optics Systems has : Fiber Optics Systems has Optical Receiver Optical Regenerator Optical Fiber Transmitter Types of Optical Fibers : Types of Optical Fibers Optical fibers come in two types: Single-mode fibers Multi-mode fibers Single-mode fibers : Single-mode fibers Single-mode fibers are used to transmit one signal per fiber (used in telephone and cable TV). They have small core (9 microns in diameter) and transmit infra-red light from laser. Multi-mode fibers : Multi-mode fibers Multi-mode fibers are used to transmit many signals per fiber (used in computer networks). They have larger cores (62.5 microns in diameter) and transmit infra-red light from LED. Wavelength Division Multiplexing : Wavelength Division Multiplexing Signals with different wavelengths are combined, transmitted together, and separated again. Time Division Multiplexing : Time Division Multiplexing Several optical signals are combined, transmitted together, and separated again based on different arrival times. Applications : Applications Carry plain old telephone service (POTS) For transmission of data Transmitting broadband signals In the biomedical industry Non-Communication Applications (sensors etc…) Advantages : Advantages Less Expensive Thinner High Carrying Capacity Less Signal Degradation Light Signals Low Power Digital signals Light Weight Disadvantages : Disadvantages Fiber optics are that the cables are expensive to install. The termination of a fiber optic cable is complex and requires special tools. They are more fragile than coaxial cable. References : References http://www.authorstream.com/ http://www.howstuffworks.com/ http://www.wikipedia.com/ http://www.osun.com/ Thank you