.
. 1.17 [48]
, 19751980 . , (850 , 1300 1550 ). , 1990 . , , λ=1380 .
. 1.17. .
. 1.18 [48]
:
- α λ, 1/λ², ;
- α 1,6 , ;
- , .
1.18 .
1.4.2.
1.18 , α. - , .
, : 850 (), 1310 (). 1550 ().
, .
, , , 0,350,40 /. - 0,20 - 1550 . , .
1260 1675 . ( 1.18), .
6 ( 1.5) [34, 48]
1.5
O | Original () | 12601360 | |
E | Extended () | 13601460 | |
S | Short wavelength () | 14601530 | |
C | Conventional () | 15301565 | |
L | Long wavelength () | 15651625 | |
U | Ultra-long wavelength ( | 1625.1675 |
, DWDM, . - L. - S. 12601650 50 .