GLOBAL SUPPLIER AND MANUFACTURER OF OPTICAL NETWORKING EQUIPMENT & SOLUTIONS

Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
Search in posts
Search in pages

Maximize Bandwidth with CWDM, DWDM,
and Tunable Optics Solutions

Flexible solutions for today’s growing data demands

Explore Solutions
Contact us
Explore Solutions
Contact us

Introduction to CWDM & DWDM

Coarse Wavelength Division Multiplexing (CWDM) and Dense Wavelength Division Multiplexing (DWDM) allow network operators to scale bandwidth by transmitting multiple data signals over a single fiber. CWDM is ideal for medium-distance networks, while DWDM is optimized for longer-haul, high-capacity applications. Together, they empower network scalability and efficiency for today’s data-intensive world.

Learn More About WDM Technology
Contact us

Why Choose CWDM & DWDM?

Scalability
Seamlessly expand your network without extensive infrastructure changes.
Cost-Efficiency
Maximize existing fiber investments.
Reduced Latency
Ideal for data centers and high-speed connections.
Future-Proofing
Easily accommodate future data growth and network expansion.
Explore Solutions

ITU Channel Frequencies and Wavelengths

ITU (International Telecommunication Union) channel frequencies and wavelengths are standardized to ensure optimal operation and minimize interference in optical networks. For CWDM and DWDM systems, ITU defines specific frequency grids for channel spacing, which ensures efficient spectrum utilization and compatibility across different network devices and systems. By adhering to ITU standards, network operators can guarantee that their channels remain properly spaced and aligned, minimizing crosstalk and optimizing bandwidth usage. Whether using CWDM for medium-distance or DWDM for long-haul applications, aligning with ITU’s channel frequency and wavelength standards allows for reliable, high-performance network operation, even in complex or dense network configurations.

Access ITU Standards

Expand the flexibility of your DWDM networks
with tunable optics

Enabling Precise Wavelength Adjustments for Custom Channel Needs, Reducing Inventory Costs, and Simplifying Network Reconfigurations 

Quick Reconfigurations

Instantly adapt to changing network needs without additional hardware.

Reduced Inventory Costs

One tunable optic can replace multiple fixed-wavelength optics.

Simplified Operations

Minimize the complexity of managing large-scale networks.

2x100G IR
Select options This product has multiple variants. The options may be chosen on the product page

QDD-2X100G-CWDM4-DCS-SO

2 x 100GBase-CWDM4 QSFP-DD Transceiver, SMF, 1271 to 1331nm, 2km, Dual CS Duplex

Select options This product has multiple variants. The options may be chosen on the product page

QSFP-100G-DWDM-EZR1-SO

100G-DWDM, QSFP28, CH21-CH60 (100-GHz ITU grid), PAM4, require EDFA and DCM to work (up to 100km), LC duplex connectors, DOM

25G CWDM SFP
Select options This product has multiple variants. The options may be chosen on the product page

SFP-25G-CWDM-ER-SO

SFP 25G, CWDM, 1270 – 1310nm, 40km/20dB over SMF, LC duplex

Select options This product has multiple variants. The options may be chosen on the product page

SFP-2.5G-CWDM-32dB-SO

2.5G, CWDM 1270nm – 1610nm, 120km/32dB over SMF, LC duplex

Select options This product has multiple variants. The options may be chosen on the product page

SFP-25G-DWDM-LR-SO

SFP 25G, DWDM Fixed, C-Band 100Ghz, 10km over SMF, LC duplex

Select options This product has multiple variants. The options may be chosen on the product page

SFP-10G-CWDM-EZR-SO

SFP 10G, CWDM regular, 100km/26dB over SMF, LC duplex

Advanced Spectrum Analyzers for CWDM & DWDM Systems

Gain Real-Time Insights into Channel Performance, Wavelength Accuracy,
and Signal Integrity for Seamless Network Operations.

Real-Time Monitoring for CWDM and DWDM Systems.

A spectrum analyzer for CWDM or DWDM systems is a powerful tool for monitoring and analyzing the optical spectrum, enabling precise measurement of channel performance, wavelength accuracy, and signal integrity. Ideal for troubleshooting and optimizing network performance, these analyzers provide real-time insights into the health of your network, ensuring optimal signal quality and efficient spectrum utilization. Whether you’re managing DWDM or CWDM systems, a spectrum analyzer helps you maintain peak network performance and quickly identify issues, minimizing downtime.

View Spectrum Analyzers
Contact us

CWDM & DWDM TUTORIALS

NEED HELP WITH YOUR CWDM or DWDM PROJECT?

CLICK HERE FOR EXPERT ADVICE

GENERAL INFORMATION ABOUT CWDM/DWDM

Wavelength division multiplexing is a technique used to transmit multiple signals over one fiber using different wavelengths. The technique has become very popular because of the high costs of renting or buying additional dark fiber. This technique is a very cost-effective method to increase bandwidth.

CWDM

Coarse Wave Division Multiplexing uses steps of twenty nanometer per optic.  Starting at 1270nm and ending at 1610nm, it consists of eighteen different ‘colors.’  CWDM is very beneficial at 1G as the optics are extremely inexpensive and can reach distances up to 180 kilometers. CWDM 10G is less popular because the lower wavelengths of the CWDM band cause a lot of attenuation – only the eight wavelengths 1470–1610nm are used for distances up to 80 kilometers.

DWDM

Dense Wave Division Multiplexing uses steps of 0.8nm per optic. The wavelengths are centered around 1550nm (C-Band, 1530 – 1565nm) and are available in 64 different channels. The most commonly used colors are channels 18 – 61.  DWDM is popular for long distances because the signal can be amplified using Erbium Doped Fiber Amplifiers, Raman amplification, or Semiconduction Optical Amplification.

Solid Optics provides CWDM and DWDM multiplexers in various configurations ranging from small trays for outdoor usage to 19’’ rack units for indoor applications. We test every port of each multiplexer for attenuation and provide a test report by serial number.  Most of the large router and switch manufacturers do not offer all available CWDM and DWDM optics in their portfolio.  Because we specialize in this technology, Solid Optics is able to offer nearly every optic for all of the major network equipment brand routers and switches

ITU CHANNELFREQUENCY (THz)CENTER WAVELENGTH (nm)
61196.11528.77
60196.01529.55
59195.91530.33
58195.81531.12
57195.71531.90
56195.61532.68
55195.51533.47
54195.41534.25
53195.31535.04
52195.21535.82
51195.11536.61
50195.01537.40
49194.91538.19
48194.81538.98
47194.71539.77
46194.61540.56
45194.51541.35
44194.41542.14
43194.31542.94
42194.21543.73
41194.11544.53
40194.01545.32
39193.91546.12
38193.81546.92
37193.71547.72
36193.61548.51
35193.51549.32
34193.41550.12
33193.31550.92
32193.21551.72
31193.11552.52
30193.01553.33
29192.91554.13
28192.81554.94
27192.71555.75
26192.61556.55
25192.51557.36
24192.41558.17
23192.31558.98
22192.21559.79
21192.11560.61
20192.01561.42
19191.91562.23
18191.81563.05
17191.71563.86

Ready to elevate your network's performance?

Contact us now for expert guidance or for additional information.
Get a free consultation

Products

Knowledge hub

Company

Support

Social

Products

Knowledge hub

Company

Social

© 2024 Solid Optics ® EU N.V.      Privacy     Cookies     T&C for Customers     T&C for Suppliers

© 2024 Solid Optics ® EU N.V.

Privacy     
Cookies                              
T&C for Customers
T&C for Suppliers

Products

Knowledge hub

Company

Social

Your Quote List

EU Contact

P: +31 (0) 88 342 3776

E: [email protected]

 US Contact

P: +1 855 678 4271 

E: [email protected] 

Close

xWDM Design Assistance​

Contact Us To Start Your Next Project


    CWDMDWDMUnsure


    Km


    dB


    1G10G100G


    Channels



    NoYes