1. Islamic Azad University, Bandar Gaz Ahmad Bahrami Subject article : Optical fiber Fall 89

3. history After the invention of lasers in 1960, the idea of using optical fiber to transmit the information was formed. News The first optical fiber in 1966 simultaneously in Britain and France declare significant suppressive action was virtually no usable data transfer communications. Finally in 1976, researchers with hard work, loss optical fiber production was severely reduced and the amount was substantial wire telecommunications network was Bkarrfth Hmmhvr.

4. ____ Basic human message Beacon light Steel Cable Azshyshh used first as a publishing environment 1960 - invented the laser beam 1966 - The first optical fiber in English Vfrans·h 1976 - Optical fiber loss reduction 1980 - Optical Communications history (kaco) (hokham)

5. What is fiber? A fiber optic high speed data transmission medium is a thin to thick A human hair, can digital information transfer over long distances And usually the connection between mobile networks between cities and urban networks Computer, etc. are used. Pulses of light for fiber optic data transmission through the use cords Sylkvn Ment. A fiber optic cable that is less than one inch in diameter can be hundreds of thousands To carry voice conversations.

6. Components constituting the optical fiber

7. Optical fibers in the two groups are classified Single mode Multi mode

8. Fiber optics manufacturing technology Before making structures Local precipitation Precipitation outside Axial precipitation

9. Mvadlazm for making pre-construction Chlorine Taatraklrid rmanyum Oksi Klrid Vseveril Fluorine Gas Helium gas Selikon Taatraklrid

10. How are the fibers Nvrrahdayt By fiber-optic communication systems Sender Amplifier receive

11. Send in the fiber optic light

12. Fiber optic communication systems by Sende Fiber Optic Optical amplifiers Optical Receiver

13. Advantages of optical fiber Lower cost in high-haul Being thinner and higher capacity transport Something very wrong signal attenuation Seemingly combustible Lightweight Signals to be ineffective in other fiber on a fiber Without the effect of electric fields on the fiber and data transfer process where Power consumption rate less than the electric transmitter

14. Disadvantages of optical fiber Expensive for smaller networks and conventional Need to install the fiber optics and equipment by qualified personnel Expensive equipment needed for copper wires to optical fibers Requires very high accuracy to install and even disconnected Being the fragile fiber cable

15. Optical fiber applications Applications in sensors: the use of fiber optic sensors to measure physical committee as electric current, magnetic field, pressure, temperature, displacement and... Military applications: communication and radar antenna control, monitoring and guiding missiles, submarines and associated... Medical applications: identify internal body disorders, laser surgery, dentistry and use in measuring fluid and blood

16. Nanvhsgrhay the production of bio-optical fiber As for preparing the fiber tip sensor, can the machines used to pull The use of optical fibers. Passing the tip of the sensor cell membranes

17. Drag mode fiber for making Nanvfybrha

18. Researchers have succeeded in changing the temperature and amount of draft force Amalshdh the fiber tip for biological sensors that make between 20 Qtrshan To 500 nanometers. Image Nanvfybr produced a method of laser stretch

19. Fiber-optic network connections Fiber Optic Patch Panel: Chamber is fitted in the rack Keeps the optical fiber connections.

20. Fiber Optic Patch Cord For connection between fiber optic patch panel Use network switches Patch Cord We. Patch Cord length is usually 1, 2, 3, 5 and 10 meters.

21. Fiber optic connectors Fiber optic connector on the optical fiber by special tools to install and can be transferred It gives us. Some types of these connectors include MT - Rj and LC and the SC and ST Maltese group mode and single mode also are divided.

22. Optical fiber adapter Optical fiber adapter interface between the fiber optic connectors mounted on it Fiber Optic Patch Cord is. This patch panel adapter for the general fiber Placed. And different type of connector as it fits the second port or single port Duplex Simplex there.

23. Fiber Optic Tool Bags Tool Bags fiber optic connectors for fiber installation.?