Fiber

Core size, μm

Cladding diameter, μm

NA

Fiber type

A

115

200

0.22

Silica core/Silica cladding

B

210

300

0.57

Silica core/Polymer cladding

C

250

350

0.57

Heptagonal core

Silica core/Polymer cladding

D

480

500

0.50

Plastic Optical Fiber