Chp 26 - Connectors

Question 1

Desirable features for a fiber optic connector or splice CLEAR?

Answer 1

Consistency, Low Loss, Easy Installation, Economical, Repeatability

Question 2

Components of a connector

Answer 2

Ferrule, Body, Cap, Strain relief boot

Question 3

Causes of loss in an interconnection Intrinsic?

Answer 3

Intrinsic – fiber related factors or caused by variations in the fiber itself

Question 4

Causes of loss in an interconnection Extrinsic?

Answer 4

connector related factors or those contributed by the connector itself

Question 5

Causes of loss in an interconnection System?

Answer 5

factors contributed by the system (e.g. transmitter, receiver, amplifier etc.)

Question 6

Some intrinsic factors?

Answer 6

Numerical Aperture (NA) Mismatch, Core Diameter Mismatch, Cladding Diameter Mismatch, Concentricity, Ellipticity

Question 7

Main causes of loss on connectors or splice?

Answer 7

Lateral Displacement, End Separation, Angular Misalignment, Surface Roughness

Question 8

Most common connectors is used today?

Answer 8

FC, ST, SC, LC, MTRJ (2 fibers one connector), MTO (use ribbon fiber)

Question 9

Define Fusion Splice?

Answer 9

Use an electrical arc to “weld” fibers together, Heats fibers to approximately 2000 degrees Celsius, Routinely achieve losses as low as 0.05 dB

Question 10

Define Mechanical Splice?

Answer 10

Easily applied, Require simple or no tooling, Losses on the order of 0.1 to 0.2 dB

Question 11

What is Ideal connector for more than 12 fibers?

Answer 11

MTP, High-performance version of the MPO for larger than 12 fibers

Question 12

List the three different types of epoxy.

Answer 12

Heat-Cured, Anaerobic, UV

Question 13

Define Insertion Loss?

Answer 13

Losses as light passes from one optical fiber end to another

Question 14

Define Return Loss?

Answer 14

Losses as light reflects off of optical fiber end

Question 15

Where can minor defects be allowed?

Answer 15

In the outer cladding.