NZDSF (Non Zero Dispersion-Shifted Fiber) . ITU-T G.655
. 7. DCU . 8. DCU
DCM | - - (/) λ = 1550 | () | DCM | - - (/) λ = 1590 | () | |
UDCMC -10 | 170 | 1,98 | UDCML -170 H | 170 | 3,4 | |
UDCMC -20 | 340 | 3,01 | UDCML -255 H | 255 | 4,1 | |
UDCMC -30 | 510 | 3,79 | UDCML -340 H | 340 | 5,1 | |
UDCMC -40 | 680 | 4,57 | UDCML -510 H | 510 | 6,7 | |
UDCMC -50 | 850 | 5,60 | UDCML -680 H | 680 | 8,4 | |
UDCMC -60 | 1050 | 6,36 | UDCML -850 H | 850 | 10,0 | |
UDCMC -70 | 1190 | 7,41 | UDCML -1020 H | 1020 | 11,7 | |
UDCMC -80 | 1360 | 8,19 | UDCML -1190 H | 1190 | 13,3 | |
UDCMC -90 | 1530 | 9,22 | UDCML -1360 H | 1360 | 15,0 | |
UDCMC -100 | 1700 | 10,25 | UDCML -1530 H | 1530 | 16,6 | |
UDCMC -110 | 1870 | 11,03 | UDCML -1700 H | 1760 | 18,3 | |
UDCMC -120 | 2040 | 12,06 |
: . 7 DCM, / D () SF - .
DCM: UDCMC -10, UDCMC -20, , UDCMC -120, U , (Unidirectional), . . ; DCM , - ; . 1550 , , .
. 8 DCM, NSDSF (+) LEAF DSF L - .
λ
. 9. λ
λ | ∆λ - λ | f | ∆ f f | |
AllWave Fiber ( Bell Labs Lucent) | 1280 1625 | 345 | 184,615 234,375 | 49,76 |
. ITU-T | 1260 1675 | 415 | 180 239 | 58,99 |
1476,81 1619,06 | 142,15 |
. 10. PTS
. | λ, f, () | , () | V , / | ℓmax OAS, | - | ||
Alcatel | Optinex 1640 WM | 1528,771612,62 (196,1185,9) | (0,8) | IP, STM -16, STM -64 | |||
Ciena | CoreStream | (0,4) | |||||
Cisco | Cisco ONS | 1528,771602,31 (196,1187,1) | (0,8) | ||||
Lucent | WaveStar OLS 800 G | 1528,771612,62 (196,1185,9) | |||||
WaveStar OLS 1.6 T | (0,4) | ||||||
Marconi | StartPhoto nix PLT 160 | ||||||
Nortel | OPTera LH 1600 G | ||||||
Siemens | Infinity WLS | 1528,771560,61 (196,1192,1) | (0,8) | STM -256 | |||
SURPASS hiT 7550 | 80/160 | 1528,771607,46 (196,1186,5) | 100/50 (0,8/0,4) | 3200/1600 | STM -64, STM -256 |
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TDFA (Terbium Doped Fiber Amplifier)
EDFA (Erbium Doped Fiber Amplifier)
YDFA (Ytterbium Doped Fiber Amplifier)
ؖ ؖ /
. 11. EDFA, YDFA, TDFA
PLP | ||
( ) | - OLA OAS PLP | |
- G (λ) | ∆ (λ EDFA: 15281542 ) = 2 | ∆λ: 15281542 . , PTS WL -8 (Sievens) ∆λ: 1548,511561,43 (8 . 1,6 (200 )) |
- OMX VOA | ||
OLA | ∆f = 18 (λ: 1476,81 1619,06 ) | . f, . 200 (1,6 ) WL -8, 100 (0,8 ), 50 (0,4 ), 25 (0,2 ) . , , , . |
G(λ)
-
PTS WDM TransWave WL-8 (Siemens) PTS Siemens