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Tuesday, February 24, 2009
Tuesday, February 17, 2009
Back To Basics - Fiber Optic
Fiber Optic is a glass or plastic fiber that carries light along its length. Fiber optics is the overlap of applied science and engineering concerned with the design and application of optical fibers. Optical fibers are widely used in fiber-optic communications, which permits transmission over longer distances and at higher bandwidths (data rates) than other forms of communications. Fibers are used instead of metal wires because signals travel along them with less loss, and they are also immune to electromagnetic interference. Fibers are also used for illumination, and are wrapped in bundles so they can be used to carry images, thus allowing viewing in tight spaces. Specially designed fibers are used for a variety of other applications, including sensors and fiber lasers.
Light is kept in the core of the optical fiber by total internal reflection. This causes the fiber to act as a waveguide. Fibers which support many propagation paths or transverse modes are called multi-mode fibers (MMF), while those which can only support a single mode are called single-mode fibers (SMF). Multi-mode fibers generally have a larger core diameter, and are used for short-distance communication links and for applications where high power must be transmitted. Single-mode fibers are used for most communication links longer than 550 meters.
Joining lengths of optical fiber is more complex than joining electrical wire or cable. The ends of the fibers must be carefully cleaved, and then spliced together either mechanically or by fusing them together with an electric arc. Special connectors are used to make removable connections.
Light is kept in the core of the optical fiber by total internal reflection. This causes the fiber to act as a waveguide. Fibers which support many propagation paths or transverse modes are called multi-mode fibers (MMF), while those which can only support a single mode are called single-mode fibers (SMF). Multi-mode fibers generally have a larger core diameter, and are used for short-distance communication links and for applications where high power must be transmitted. Single-mode fibers are used for most communication links longer than 550 meters.
Joining lengths of optical fiber is more complex than joining electrical wire or cable. The ends of the fibers must be carefully cleaved, and then spliced together either mechanically or by fusing them together with an electric arc. Special connectors are used to make removable connections.
Thursday, February 12, 2009
Sponsor - Topical Meeting On Lasers and Optoelectronics
Topical Meeting On
Lasers and Optoelectronics
The Andaman, Langkawi
7th ~ 10th of February 2009
*For More Information, Please Visit: http://umnews.um.edu.my/index.php?module=detail&view=1668&cat=ummail
Lasers and Optoelectronics
The Andaman, Langkawi
7th ~ 10th of February 2009
*For More Information, Please Visit: http://umnews.um.edu.my/index.php?module=detail&view=1668&cat=ummail
Sponsor - 8th 2008 IEEE International Conference on Semiconductor Electronics (ICCE2008)
8th 2008 IEEE International Conference on Semiconductor Electronics (ICCE2008)Persada Johor Convention Center
25th ~ 27th November 2008
*For More Information, Please Visit: http://icse2008.com/
Tuesday, February 10, 2009
Sponsor - 6th NATIONAL CONFERENCE ON TELECOMMUNICATION TECHNOLOGIES (NCTT) and 2nd MALAYSIA CONFERENCE ON PHOTONICS (MCP)
6th NATIONAL CONFERENCE ON TELECOMMUNICATION TECHNOLOGIES (NCTT) and 2nd MALAYSIA CONFERENCE ON PHOTONICS (MCP)
Putrajaya
August 26th ~ 28th 2008
*For More Information, Please Visit: http://www.uniten.edu.my/nctt-mcp/
http://coe.edu.my/ncttmcp/callforpapers.html
August 26th ~ 28th 2008
*For More Information, Please Visit: http://www.uniten.edu.my/nctt-mcp/
http://coe.edu.my/ncttmcp/callforpapers.html
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