High Channel Density
Carry dozens of independent optical channels over the same fiber infrastructure.
DWDM SOLUTION
DWDM Mux Demux
Custom DWDM Mux Demux for High-Capacity Fiber Networks
Increase fiber capacity by combining multiple closely spaced optical channels over existing single-mode fiber.
Overview
More Channels. More Capacity. Same Fiber.
A DWDM Mux Demux is a passive wavelength-division multiplexing device that combines multiple closely spaced optical channels onto a common fiber and separates them again at the receiving end.
DWDM channels follow the frequency grid defined by ITU-T G.694.1, allowing significantly more wavelength channels within the C-band than CWDM.
Key Features
50GHz / 100GHz Channel Spacing
High Channel Density
Passive Operation
Protocol & Data-Rate Transparent
Single or Dual Fiber
Custom Channel Plan
Core Value
Why This Solution
The essential value at a glance, with the complete technical context available below.
Efficient Fiber Utilization
Expand network capacity without installing additional fiber.
Passive & Reliable
The Mux/Demux itself requires no power supply, software or active management.
Flexible Transmission
The passive device is protocol and data-rate transparent. Actual service rates depend on the DWDM transceivers or coherent interfaces used in the network.
Applications
Where It Fits
01
Data Center Interconnection
Increase fiber capacity between data centers or network facilities where fiber resources are limited.
02
Metro Networks
Aggregate multiple optical services between POPs, aggregation sites and network facilities.
03
Telecom & Service Provider Networks
Build high-capacity point-to-point, ring and multi-site optical transport networks.
04
Dark Fiber Capacity Expansion
Transmit multiple independent services over existing dark-fiber infrastructure instead of deploying additional fibers.
05
Long-Reach Optical Networks
DWDM can be integrated with suitable transceivers, optical amplifiers, dispersion management where required, and other transport equipment for extended-distance applications.
How to Configure
Build the Right Configuration
Follow the selection path. Final optical values are confirmed against the approved project configuration.
Channel Spacing
100GHz / 50GHz
Channel Count
Customized according to grid and application
Operating Band
C-Band
Fiber
Dual Fiber / Single Fiber
Connector
LC/UPC / LC/APC / SC/UPC / SC/APC / Customized
Housing
ABS / LGX / Plug-in Module / 1U Rack Mount / Customized
Design Focus
Choose Channel Spacing
100 GHz · standard density
50 GHz · higher density
Link budget · verify total passive loss and engineering margin
Technical Specifications
Verified Configuration Data
Complete source parameters are retained here for detailed evaluation.
One Platform. Your Channel Plan.
Configure the Mux/Demux according to your network instead of selecting from dozens of fixed part numbers.
| Configuration | Available Options |
|---|---|
| Channel Spacing | 100GHz / 50GHz |
| Channel Count | Customized according to grid and application |
| Common Configurations | 4 / 8 / 16 / 32 / 40 / 48 / 64 / 80 / 96 channels |
| Frequency Grid | ITU-T G.694.1 |
| Band | C-Band |
| Fiber Configuration | Dual Fiber / Single Fiber |
| Channel Selection | Consecutive / Selected channels |
| Optional Port | Monitor Port, Expansion Port, 1310nm Port |
| Connector | LC/UPC / LC/APC / SC/UPC / SC/APC / Customized |
| Fiber Type | Single-mode |
| Filter Technology | TFF / AAWG depending on configuration |
| Housing | ABS / LGX / Plug-in Module / 1U Rack Mount / Customized |
| Port Label | Customized |
| Product Label | AERECH / OEM |
| Packaging | Standard / OEM |
Choose the Right Channel Spacing
| 100GHz DWDM | 50GHz DWDM | |
|---|---|---|
| Approx. Spacing Near 1550nm | ~0.8nm | ~0.4nm |
| Channel Density | High | Higher |
| Common Applications | Enterprise, DCI, Metro, Telecom | High-density DCI & Optical Transport |
| Common Channel Counts | 4–48CH | 64–96CH |
| Optical Design | TFF / AAWG | AAWG |
| Transceiver Requirement | Matching 100GHz DWDM wavelength/frequency | Matching 50GHz DWDM frequency |
100GHz
A widely used choice for passive DWDM networks, offering a good balance between channel density, optical performance and system simplicity.
50GHz
Provides twice the nominal channel density of a 100GHz grid and is suitable when more wavelengths are required within the available optical spectrum.
Important: The DWDM Mux/Demux channel frequency must match the optical transmitter frequency.
Network Architecture
See the Signal Path
Switch between the documented deployment patterns to understand component placement and traffic flow.
1Client Services
2DWDM MUX
3TX / RX Fiber Pair
4DWDM DEMUX
5Client Services
1Site A · Unit A
2Paired Channels
3Single Fiber
4Paired Channels
5Site B · Unit B
1DWDM MUX
2Booster EDFA
3Long Fiber Span
4Pre-Amplifier
5DWDM DEMUX
1Main Site
2DWDM Trunk
3OADM · Add / Drop
4DWDM Trunk
5Remote Site
Architecture notes and source diagrams
DWDM Network Architecture
Dual-Fiber Point-to-Point DWDM
The most straightforward DWDM architecture uses separate fibers for each transmission direction.
The same DWDM channels can be used in both directions because transmission and reception use separate fibers.
Single-Fiber DWDM
Save Fiber with Bidirectional Transmission
Single-fiber DWDM carries traffic in both directions over one fiber.
The two ends use complementary wavelength arrangements and must be designed as a matched pair.
Amplified DWDM Network
Extend Optical Reach When the Link Budget Requires It
For longer or higher-loss links, DWDM can be combined with optical amplifiers.
Amplifier type, location and gain must be designed according to:
Channel power
Number of wavelengths
Fiber attenuation
Mux/Demux loss
Receiver requirements
OSNR
Total system link budget
Add or Drop Channels Along the Route
DWDM with OADM
Selected DWDM channels can be added or dropped at intermediate network locations while other channels continue through the fiber.
This architecture is suitable for metro, access and multi-site optical networks.
Technical Library
Go Deeper When You Need To
Detailed engineering context is preserved without interrupting the main selection journey.
Why Use DWDM?
Maximize the Capacity of Existing Fiber
High Channel Density
Carry dozens of independent optical channels over the same fiber infrastructure.
Efficient Fiber Utilization
Expand network capacity without installing additional fiber.
Passive & Reliable
The Mux/Demux itself requires no power supply, software or active management.
Flexible Transmission
The passive device is protocol and data-rate transparent. Actual service rates depend on the DWDM transceivers or coherent interfaces used in the network.
Ready for Optical Amplification
C-band DWDM systems can be designed with optical amplifiers such as EDFAs when required by the link budget and network architecture.
Build a Complete DWDM Solution
More Than the Mux/Demux
A complete DWDM network can include:
DWDM Optical Transceivers
Fixed or tunable DWDM optical modules matched to the required ITU channels.
DWDM OADM
Add or drop selected DWDM wavelengths at intermediate network locations.
EDFA
Optical amplification for suitable C-band DWDM network architectures.
CWDM Mux Demux
A lower-channel-density alternative for applications that do not require the capacity of DWDM.
Quality Control
From Inspection to Packaging
Every DWDM Channel Verified Before Shipment
DWDM uses narrow channel spacing, making accurate spectral performance especially important.
1Incoming Inspection
2Assembly
3Frequency & Passband Test
4Insertion Loss Test
5Isolation Test
6Port Mapping
7End-Face Inspection
8Final Inspection
9Packaging
FAQ
Questions Before Selection
Open a question for the complete answer from the supplied product documentation.
What channel spacing is available?
Standard passive DWDM configurations commonly use 100GHz or 50GHz channel spacing based on the ITU-T G.694.1 frequency grid.
What is the difference between 100GHz and 50GHz DWDM?
50GHz provides higher channel density than 100GHz. The correct option depends on the required channel count and optical transceiver frequency plan.
Does a DWDM Mux Demux require power?
No. A passive DWDM Mux/Demux requires no electrical power or software configuration.
Can DWDM support different data rates?
Yes. The passive Mux/Demux is data-rate and protocol transparent; actual compatibility depends on the optical interfaces and link budget.
What is a monitor port?
A monitor port taps a small portion of the optical signal for power or spectrum monitoring without interrupting the main link.
What is a 1310nm port?
It allows a separate 1310nm optical service to share the same fiber with the C-band DWDM channels.
Can DWDM be used with EDFA?
Yes. C-band DWDM systems can be designed with EDFAs when amplification is required by the optical link budget.
Can the DWDM Mux Demux be customized?
Yes. Channel count, spacing, channel plan, fiber configuration, connectors, special ports, housing, labels and packaging can be customized.
Project Support
Send Your RequirementsNeed a DWDM Configuration for Your Network?
You Don't Need to Know the Exact Part Number. Send us your network requirements and we can help configure the appropriate DWDM solution.