Optical Specifications
Parameter | 4 Channel | 8 Channel | 16 Channel | 18 Channel | |
Package Dimension (mm) | L44xW28xH6 | L44xW28xH6 | L50xW50xH6 | L50xW50xH6 | |
Insertion Loss (dB) | ≤1.5 | ≤2.0 | ≤3.5 | ≤3.5 | |
Center Wavelength (nm) | 1270~1610/1271 ~1611nm | ||||
Channel Passband (nm) | CW±6.5 | ||||
Isolation (dB) | Adjacent | ≥30 | |||
Non-adjacent | ≥40 | ||||
Polarization Dependent Loss (dB) | <0.2 | ||||
Polarization Mode Dispersion (ps) | <0.2 | ||||
Directivity (dB) | ≥50 | ||||
Return Loss (dB) | ≥45 | ||||
Maximum Power Handling (mW) | 500 | ||||
Operating Temperature (℃) | -10~+70 | ||||
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 |
Q1: CCWDM size is <CWDM?
Yes, Compared with traditional CWDM technology, CCWDM technology uses free-space optics platform which can significantly improve optical performance, in a package less than 1/4 the size of conventional CWDM modules.
Q2: What's the main advantage of CCWDM?
Main advantages of CCWDM Mux are high wavelength accuracy and stability, low insertion loss, high isolation and low PDL(polarization dependent loss).
Q3: What's the protocol the CCWDM support?
It's protocol and rates transparent supporting such applications as the CWDM system, PON networks, and CATV Links.
Q4: Can it use in PON Network?
Yes, Also can use in following environment:
CWDM Systems
Telecom networks
Metro Area Networks
Broadband Networks
PON Networks
CATV Links
Broadband Systems
Optical Add/Drop Multiplexing
Metro/Access Communication Networks
Fiber Optic Instruments
Q5: What's the advantages of it?
Compact size
Low insertion loss
Low PDL
High channel isolation
Excellent environmental reliability
Epoxy-Free Optical Path
Q6: How about the size of 18ch, 8ch and 4ch?
The following picture show you the details.
Size of 18ch Mini CCWDM Mux Demux
Size of 8ch Mini CCWDM
Size of 4ch compact CWDM Mux Demux
Know more about WDM.
1. What type of WDM?
WDM can be subdivided into CWDM (Sparse Wavelength Division Multiplexing) and DWDM (Dense Wavelength Division Multiplexing). The channel spacing of CWDM is 20nm, and the channel spacing of DWDM is from 0.2nm to 1.2nm. Therefore, CWDM is called sparse wavelength division multiplexing technology with respect to DWDM.
2. What's the DWDM and the advantage?
DWDM is dense wavelength division multiplexing, with dense band spacing (0.4nm or 0.8nm), a large number of channels, and high technical requirements. It is mainly used on the trunk line, and local network and metropolitan area network are also widely used. The single channel has a high transmission rate and a large system capacity.
Advantages: DWDM optical modules are small and require additional wavelength control devices. Its main advantage is that it is the most effective solution to solve the line bandwidth expansion.
3. What's the CWDM?
CWDM is coarse wavelength division multiplexing, with a wide channel spacing (20nm) and a small number of channels (16 channels in the channel width of 1200 to 1700nm). Low technical requirements, mainly used in the access network of the metropolitan area network. The single channel transmission rate is relatively low and the system capacity is not large.
4. What's the CCWDM and the advantage?
CCWDM is a mini-wavelength division multiplexer, which is a mini version of CWDM. The size of CWDM package is basically 110×80×12mm.
In contrast, CCWDM has a much smaller package size. Adjacent channels of CCWDM use parallel beams to cascade in free space instead of fiber. Without the fiber used for cascading, the CCWDM package is only 41 x 28 x 8.7 mm3, which is 10 times smaller than the standard CWDM package.
Advantage: Device and process stability, reduced manufacturing cost, small package size, high scalability (4/8/10 or more channels), data communication network/telecom network for low cost non-cooled laser technology.
5. Which is better for CWDM optical modules, DWDM optical modules, and CCWDM modules?
From a cost perspective, CCWDM is cheaper than CWDM and DWDM. CWDM optical modules provide a convenient and low-cost solution for adopting Gigabit Ethernet and Fibre Channel. CCWDM adopts data communication network/telecom network suitable for low-cost uncooled laser technology by adopting optical communication performance, low manufacturing cost, small package size and high scalability (4/8/10 or more channels). On the other hand, DWDMs typically use denser channel spacing and are used for larger optical networks over longer distances.
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