a.uu 





1 

 / 



150KPSI 



8.00 



- 









/ 

 / 





7.00 



- 



/ 



/ 









/ 



/ 

 / 



100KPSI 



6.00 



- 



/ 

 / 



Q 



_l 



HI 



^ 5.00 



_ 



/ 



/ 

 / 

 / 

 / 



/ 

 / 



/ 

 / 

 / 



/ 

 / 

 1 



DC 

 O 



P 4.00 

 in 

 O 

 O 



3.00 



- 



1 

 1 

 1 

 1 



/ 



/ 

 / 



2.00 



- 



/ 



/ 

 / 



/ 



/ 

 / 



^^ 60 KPSi 



1.00 





^^ 



— 25 KPSI 

 -J 1 1 















-1 1, 1 



15 20 



LENGTH, km 



Figure 4. Typical yield curves for fiber-optic links. 



BUFFER COATING (SILICONE 

 RTV SURROUNDED BY 

 HYTREL OR NYLON JACKET) 



STRENGTH MEMBER 

 (PARAXIAL S-G LASS 

 IN EPOXY MATRIX) 



SILICA OPTICAL FIBER, 



LOW-LOSS GRADED INDEX, 



50/125 INTERNATIONAL STANDARD 



Figure 5. Cross section of the S-glass armored fiber link. 



19 



