Optical fibers

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1. Cairo University Faculty Of Engineering Systems And Biomedical Department Report on Optical Fibers submitted by Ali Ahmed Ali Gendy Under the supervision of Dr. 2. Mohamed Hesham . 3. . )Optical Fibers (- : .. . 4. . -Optical Fibers 1927 . 5. . . 1960 . 6. . 1970 200. . . 7. . 1970 . 1979 20. . 1987 8. . . . 9. )) - optical cable . -: -Core: . cladding: . 10. Buffer coating-: . 11. : single mode fiber . micron 9 1.3-1.55nm. multi-mode fibers 12. . 62.5micron . 13. . . . . )cladding(. . . 14. Total Internal Reflection . 15. : )48.6 ( total internal reflection. 16. : )1( )( ).( )2. ( core 17. . 18. . : )1( . 50THz 19. 6MHz. )2( 7.62 0.635 . )3( 94.5 3.6. )4( . )5( 20. . . )6( . )7( . . 21. : . 22. . . strain 23. . Examination lights FO headlight Vet Otoscope Laryngoscope (blade illumination) Anoscope (with annular illumination) Otoscope 24. Binocular indirect ophthalmoscope Amnioscope Microscope illumination Heart catheter , , , 25. , .