One of HTF customer ask, can we support to design single fiber DWDM solution for 80km?
HTF: Of course we can support and design.
Your need point to point DWDM single fiber solution?
The fiber loss for 80km is ?
Need transmit how many data rate?
Customer: Yes, 20dB loss for 80km, 10x10G
What’s the max for your solution can transmit?
HTF: OK. We will choose 40ch DWDM mux demex, max 16 channel x 10G.
Customer: Why 40ch DWDM mux demux only can transmit 16 channel x 10G?
HTF:
(1)As it is single fiber, for 80km, need use BIDI edfa.
(2)Under the situation of using 40ch dwdm mux demux module. (C21-C60)
(3)BIDI edfa only can transmit the corresponding wavelength.
Customer cannot use use C37-C44 channels, is related with single fiber amplifier, C37-C44 are not in single fiber amplifier wavelength range.
single fiber amplifier only support the wavelength range is:
EDFA-Red 1547-1561nm ( DWDM mux&demux and DWDM optical module use C21-C36 )
EDFA-Blue 1528-1543nm ( DWDM mux&demux and DWDM optical module use C45-C60 )
Channel | On ITU grid in C-band | Channel
| On ITU grid in C-band | ||
Frequency (THz) | Wavelength (nm) | Frequency (THz) | Wavelength (nm) | Frequency (THz) | |
C21 | 192.1 | 1560.61 | C41 | 194.1 | 1544.53 |
C22 | 192.2 | 1559.79 | C42 | 194.2 | 1543.73 |
C23 | 192.3 | 1558.98 | C43 | 194.3 | 1542.94 |
C24 | 192.4 | 1558.17 | C44 | 194.4 | 1542.14 |
C25 | 192.5 | 1557.36 | C45 | 194.5 | 1541.35 |
C26 | 192.6 | 1556.55 | C46 | 194.6 | 1540.56 |
C27 | 192.7 | 1555.75 | C47 | 194.7 | 1539.77 |
C28 | 192.8 | 1554.94 | C48 | 194.8 | 1538.98 |
C29 | 192.9 | 1554.13 | C49 | 194.9 | 1538.19 |
C30 | 193 | 1553.33 | C50 | 195 | 1537.4 |
C31 | 193.1 | 1552.52 | C51 | 195.1 | 1536.61 |
C32 | 193.2 | 1551.72 | C52 | 195.2 | 1535.82 |
C33 | 193.3 | 1550.92 | C53 | 195.3 | 1535.04 |
C34 | 193.4 | 1550.12 | C54 | 195.4 | 1534.25 |
C35 | 193.5 | 1549.32 | C55 | 195.5 | 1533.47 |
C36 | 193.6 | 1548.51 | C56 | 195.6 | 1532.68 |
C37 | 193.7 | 1547.72 | C57 | 195.7 | 1531.9 |
C38 | 193.8 | 1546.92 | C58 | 195.8 | 1531.12 |
C39 | 193.9 | 1546.12 | C59 | 195.9 | 1530.33 |
C40 | 194 | 1545.32 | C60 | 196 | 1529.56 |
C37-C44 can not use in single fiber EDFA. | |||||
Customer: Thanks for you detail explain. Can you send me your solution for our customer to check?
HTF: Yes, Engineer had design the solution, use 40km type DWDM optical module, can help you save cost. The following is the solution for you to check.
DWDM Single fiber solution from HTF 80km 20db Loss, ues 40km optical module | ||||||
Item | Product | Model | Specification | A (pcs) | B(pcs) | Sub Total |
1 | Chassis | HT6000-CH04 | 1U,19ich, 3 business slots + 1 network management slot, Dual power AC or DC-48V optional | 1 | 1 | 2 |
2 | Mux/ Demux | AAWG40 | 40CH passive MUX DEMUX card | 1 | 1 | 2 |
3 | EDFA | PA16/G25-R | Power amplifier card, Maximum output 16dBm, gain 25dB,Amplify the red light | 1 | 1 | |
4 | PA16/G25-B
| Pre-amplifier card, Maximum output 16dBm, gain 25dB,Amplify the blue light
| 1 | 1 | ||
5 | Optical Module | DWDM-SFP-10G-40 | SFP+ 10G DWDM 40km （C21~C36+C45~C60） | 16 | 16 | 32 |
6 | DCM | DCM60 | Dispersion compensator, compensates 60km | 1 | 1 | 2 |
7 | NMS | NMS | Network management card, 2xSFP +4xLAN+CLI | 1 | 1 | 2 |
If you have any other questions, Welcome to contact HTF team. Whatsapp: 008618123672396 support@htfuture.com
