Splices Flashcards
What are three reasons a splice would be used?
- Damage to a cable
- Extend length of a cable
- Join two different cable types
What are the two types of splices?
Mechanical
and
Fusion
What benefit(s) does mechanical splicing have over fusion splicing?
Lower cost equipment
What benefits does fusion splicing have over mechanical splicing?
Better performance
What are the three groups of factors that affect losses in a connector or splice?
Intrinsic
Extrinsic
and
System
What is an intrinsic factor?
Fiber realated factors such as variations in the fiber itself?
What are the five intrinsic factors?
Numerical Aperature Mismatch
Core Diameter Mismatch
Cladding Diameter Mismatch
Concintricity
Ellipticity
What is an extrinsic factor?
Connector related factors caused by the connector itself
What are the four main extrinsic factors?
Surface Roughness
End Separation
Angular Misalignment
Lateral Displacement
What are system factors?
Factors contributed by the system such as the transmitter, receiver, amplifier and other system components
What is numerical aperature mismatch?
When the acceptance angle of the input fiber is larger than the acceptance angle of the output fiber?
What is lateral displacement?
When one fibers axis does not coincide with the axis of the other
What is end seperation and what type of loss is experienced?
When two fibers are seperated by a small gap which creates Fresnel reflection loss.
How can Angular misalignment be prevented?
Proper cleaving and polishing
What is return reflection loss?
Optical energy reflected back towards the source and interfering with operation of the transmitter?
