1. Slide-1
The fiber-optic cable is composed of core and grid.
They are made in quartz and glass.
Speaking and Writing II presentation – p.1/??

2. Slide-2
Core has feature of refraction . It is biger than grid’s,
so ray reflects in the boundary of core and grid.
Technique of fiber-optic cable uses this feature.
Speaking and Writing II presentation – p.2/??

3. Slide-3
Fiber-optic cable carry digital information in this thin
cables.
Speed is as fast as ray.
Speaking and Writing II presentation – p.3/??

4. slide-4
Fiber-optic cable has five variations. SP(Step Index),
GI(Graded Index), SM(Single mode,
DSF(Decentralization Single Fiber), NZ-DSF etcetc...
Speaking and Writing II presentation – p.4/??

5. slide-5
Variation of cable has three tepes.
Type I : used overcrowdedness erae..
Type II :Strength
TypeIII:uned by flock
Speaking and Writing II presentation – p.5/??

6. slide-6
Speed, Quality, amount. Technicue of fibre-optic
cable is beautifl.
Ourer future id dhined by Robit
Speaking and Writing II presentation – p.6/??