18CH Compact CWDM/CCWDM Mux with Free Space Optics – High-Density Wavelength Management
Our 18-channel coarse wavelength division multiplexer integrates patented free-space optics technology to deliver ultra-low <2.0dB insertion loss and >35dB channel isolation in a 1U rack-mount package.
Key Advantages:
* Breakthrough density: 18 wavelengths (1270~1610nm) in standard telecom rack space
* Zero-touch performance: <0.03dB thermal drift (-40°C to +85°C) with FSO alignment
* Protocol-agnostic: Supports 10G/25G/100G mixed traffic (Ethernet, CPRI, OTN)
* Plug-and-play deployment: Pre-configured channels with SC/LC/UPC connectors
Ideal for 5G midhaul, DCI, and hyperscale data centers requiring future-proof fiber capacity expansion. NEBS Level 3 certified.
HJY offers a compact CWDM module that provides bandwidth capacity expansion for future network growth in one of the small packages. Its compact size and unique carrier tray set it apart, and can be installed in a variety of field situations.
The compact CWDM is ultra low loss, super thermal stability, and excellent reliability, with smaller size compact design to save much space in the application. Applicable to CWDM system and optional special service
Performance Specifications:
| Parameter | 10 Ch | 12Ch | 14 Ch | 16Ch | 18Ch |
| Operating Wavelength (nm) | 1260~1620 |
| Channel Wavelength (nm) | 1270,1290,...,1590,1610, or 1271,1291,...,1591,1611 |
| Channel Spacing(nm | 20 |
| Channel Passband (nm) | CWL+/-6.5nm |
| Insertion Loss (dB) | ≤1.5 | ≤1.5 | ≤1.8 | ≤1.8 | ≤2.0 |
| Channel Ripple (dB) | ≤0.4 |
| Isolation (dB) | Adjacent | >30 |
| | Non-adjacent | >40 |
| Polarization Mode Dispersion (PS) | ≤0.2 |
| Polarization Dependent Loss (dB) | ≤0.2 |
| Directivity (dB) | >45 |
| Return Loss(dB) | >45 |
| Maximum Power Handling (mW) | 500 |
| Operating Temperature (ºC) | -5~+70 |
| Storage Temperature (ºC) | -40~85 |
| Fiber Type | G657A1 |
| Connector | TBD |
| Package dimension (mm) | L55 x W45 x H6 |
Remark:Above specification are for device without connector
Unique Free-Space Technology
The CCWDM Mux adopts Free-Space technology, which uses light propagating in free space to wirelessly transmit data. Inside the device, adjacent signal channels are cascaded by parallel beam instead of the fiber. This saves a lot of space for package box, and the unique workmanship also helps CCWDM Mux Demux with low insertion loss.
Comparison between CCWDM and CWDM
Insertion Loss <2.6 dB
The insertion loss of CCWDM Mux is about half of the conventional CWDM Mux. This reduces the overall loss of the whole link, and leaves more choices for the design of the solution.
Compact Package Design
CCWDM Mux uses the parallel beam for cascading instead of the fiber, which saves significant space. The minimum dimension of CCWDM aluminum box module is less than the 1/4 size of minimum CWDM ABS pigtailed module.
Order Information
| Configuration | Channel No. | Pigtail Type | Fiber length | Declension(mm) | Connector |
| CC=CCWDM | 40=4 Channel
41=4+UPG
80=8 Channel
81=8+UPG1
82=8+UPG2
--- | 0=250um
1=900um | 0=0.5m
1=1m
2=1.5m
3=others | 1= L55 x W35 xH8
2=L44 x W25 x H6 | 0=None
1=FC/APC
2=FC/PC
3=SC/APC
4=SC/PC
5=others |
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18CH Compact Coarse Wavelength Division Multiplexer CCWDM Mux with Advanced Free Space Optics Technology Images
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