Fiber Optics Installer (FOI) Certification Exam Guide by 
City of Light by 
Excellent Site and Resources on Fiber Optics
an international non-profit educational association that is chartered to promote professionalism in fiber optics through education, certification and standards. FOA is also an internationally recognized certifying body.
How stuff works.com
Otelco: A Complete Guide to Fiber Optic Internet
Guide
Khan Academy
Optical Fibre Communication: telecommunications
article by electronic-notes
Optical fibres, cables and systems
book online
book online
BEC701- FIBRE OPTIC COMMUNICATION
PPT
FIBER-OPTIC COMMUNICATION SYSTEMS Fourth Edition
link to book online
The Essential Guide to Telecommunications
link to online book
Fiber-Optic Cables by Terry Bartelt
Wisc-Online
Fiber Optic Telecommunication