Um add drop Optical CWDM Multiplexers Modules
Features
Low Insertion Loss
Wide passband
High Channel Isolation
High Stability and reliability
Epoxy-free on Optical Path
Applications
Line Monitoring
WDM Network
Telecommunication
Cellular Application
Performance Specifications
Product Name | HTF-CWDM Module | ||||||||
Parameter | 4 Channel | 8 Channel | 16 Channel | 18 Channel | |||||
Mux | Demux | Mux | Demux | Mux | Demux | Mux | Demux | ||
Package dimension (mm) | ABS Box | L100 x W80 x H10 | L100 x W80 x H10 | L141 x W115 x H18 | L141 x W115 x H18 | ||||
LGX Box | L158 x W100 x H30 | ||||||||
1U 19” Rack Mount | L440 x W220 x H44 | ||||||||
Insertion Loss (dB) | ≤1.5 | ≤2.5 | ≤3.5 | ≤3.8 | |||||
Channel Uniformity (dB) | ≤0.6 | ≤1.0 | ≤1.5 | ≤1.8 | |||||
Isolation (dB) | Adjacent | N/A | >30 | N/A | >30 | N/A | >30 | N/A | >30 |
Non-adjacent | >40 | >40 | >40 | >40 | |||||
Channel Wavelength (nm) | 1270~1610/1271~1611 | ||||||||
Center wavelength Accuracy (nm) | ±0.5 | ||||||||
Channel Spacing (nm) | 20 | ||||||||
Channel Passband (@-0.5dB bandwidth (nm) | ±7.5/±6.5 | ||||||||
Channel Ripple (dB) | <0.3 | ||||||||
Insertion Loss Temperature Sensitivity (dB/℃) | <0.005 | ||||||||
Wavelength Temperature Shifting (nm/℃) | <0.002 | ||||||||
Polarization Dependent Loss (dB) | <0.1 | ||||||||
Polarization Mode Dispersion | <0.1 | ||||||||
Directivity (dB) | >50 | ||||||||
Return Loss (dB) | >45 | ||||||||
Maximum Power Handling (mW) | 300 | ||||||||
Operating Temperature (℃) | -5~+75 | ||||||||
Storage Temperature (℃) | -40~85 |
Channels List
ITU channel no. | Wavelength | ITU channel no. | Wavelength |
27 | 1270nm/1271nm | 45 | 1450nm/1451nm |
29 | 1290nm/1291nm | 47 | 1470nm/1471nm |
31 | 1310nm/1311nm | 49 | 1490nm/1491nm |
33 | 1330nm/1331nm | 51 | 1510nm/1511nm |
35 | 1350nm/1351nm | 53 | 1530nm/1531nm |
37 | 1370nm/1371nm | 55 | 1550nm/1551nm |
39 | 1390nm/1391nm | 57 | 1570nm/1571nm |
41 | 1410nm/1411nm | 59 | 1590nm/1591nm |
43 | 1430nm/1431nm | 61 | 1610nm/1611nm |
Ordering Information
Example: HTF-CWDM- M 18 1 0 SP U: HTFuture CWDM Mux 18Channels(the wavelength according above CWDM Wavelength Table), 900um fiber, 0.5meter, with SC/UPC Connector, 1U 19” Rack mount packing.
Configuration | No. of Channels | Fiber Type | Fiber Length | Connector | Packing |
M=Mux | 02=2Channel | 0=250um | 0=0.5m | 0=None | A=ABS Box |
Q1: I need to buy 4ch CWDM Module, do you have LGX package ?
A1: Yes, You can choose CWDM Mux/Demux package type include ABS box package, LGX package, and 19" 1U rack mount.
Q2: How you will ship to us?
Q2: Air, Sea, Express (DHL, FedEx, UPS, EMS, TNT etc).
Q3: How long it will take?
A3: EXPRESS: around 3-7 working days to arrive.
INTERNATIONAL AIR MAIL: usually around 2-4 days to arrive, will also depend on which destination port.
By sea: depend on which destination port.
Q4: What about Payment terms?
1. T/T
2. Western Union
3. Paypal
4. L/C
Know more about CWDM
CWDM definition:
● Up to 18 different CWDM wavelength over one pair of fiber
● CWDM channel spacing 20nm, 1270nm to 1610nm
● Distances up to 120 km
● Cost-effective WDM solution
● Scalable by hybrid CWDM/DWDM - perfect solution for your investment
● CWDM technology offers a convenient and cost-efficient solution for shorter distances of up to 70 kilometers. For distances between 40 and 70 kilometers, CWDM tends to be limited to supporting eight channels.
CWDM principle
Coarse Wavelength Division Multiplexing (CWDM) is a wavelength multiplexing technology for city and access networks. Transmission is realized using 18 channels with wavelengths between 1270nm and 1610nm. Due to the channel spacing of 20nm cost-effective lasers can be used. The channel width itself is 13nm. The remaining 7nm is designed to secure the space to the next channel.
Technical Details
ITU-T G.694.2
λ: 1271nm - 1611nm
Max. 18 channels can be used due to the water peaks
Channel spacing: 20nm
CWDM vs DWDM
Which solution is best suited to a given environment depends on the network and user requirements.
The sweet spot for CWDM is up to 10 Gigabit Ethernet and 16G Fibre Channel. And it is quite unlikely capacities with increase beyond this in the future. DWDM however, is able to handle higher speed protocols up to 100Gbps per channel making it a more suitable technology for higher speed protocols.
Traditionally CWDM components have been lower in cost making it more popular than DWDM. Now the price for both solutions is comparable. With higher speeds, more channel capacity, longer distances and passive networking, DWDM is the technology of choice for green field installations.
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