DWDM Active and Passive Solutions

With a comprehensive understanding of DWDM's critical role in modern networking, C-LIGHT offers a full portfolio of DWDM active and passive products designed to meet the diverse needs of telecom operators, data centers, and enterprise networks. Founded in 2011, C-LIGHT has 15 years of experience in developing and manufacturing high-performance optical transceivers and WDM components, serving customers across more than 100 countries worldwide.

1. C-LIGHT DWDM MUX / DEMUX (Passive Wavelength Multiplexers)

At the heart of C-LIGHT's DWDM portfolio are its high-performance DWDM MUX and DEMUX products. These passive optical devices serve as the core capacity-expanding components in fiber optic networks, multiplexing dozens to hundreds of optical signals with different wavelengths onto a single fiber while supporting C-band and L-band operation.

Key features of C-LIGHT's DWDM MUX/DEMUX offerings include:

• Channel Configurations: Available in 4CH, 8CH, 16CH, 32CH, and 64CH variants to support networks of varying scale and capacity requirements.

• Fiber Type Options: Both dual-fiber and single-fiber bidirectional configurations are available. Single-fiber solutions reduce fiber resource usage by 50% compared to traditional dual-fiber approaches—a critical advantage in fiber-constrained environments.

• Flexible Form Factors: Products can be supplied in 1U 19-inch rack-mount chassis, LGX cassette, or ABS pigtail box enclosures, providing deployment flexibility for data centers, central offices, and remote cabinets.

• Connector Compatibility: Supports LC, SC, and ST connector types to ensure seamless integration with existing network infrastructure.

• Expansion Port: Select models feature an expansion/monitoring port supporting 1310nm legacy services, enabling hybrid network coexistence.

These MUX/DEMUX products deliver ultra-high-speed (terabit-level), low-latency transmission for data center interconnects, 5G transport networks, and backbone networks. Additionally, they reduce reliance on fiber resources and operational costs, making them critical building blocks for future-proof, high-reliability, high-capacity networks.

2. C-LIGHT DWDM Optical Transceivers and Active Solutions

Beyond passive MUX/DEMUX components, C-LIGHT offers a comprehensive lineup of active DWDM optical transceivers and related products that enable end-to-end DWDM transmission:

High-Speed Optical Modules: C-LIGHT's product catalog spans from 10G, 25G, 50G, and 100G up to 200G, 400G, and 800G high-speed optical transceivers across multiple form factors including SFP, SFP+, QSFP28, QSFP-DD, CFP2, and OSFP.These modules include DWDM-tunable variants that can be adjusted to specific ITU-T G.694.1 wavelength channels, providing inventory simplification and operational flexibility.

Coherent DWDM Solutions: For long-haul and metro applications, C-LIGHT supports advanced coherent optical technology, including 400G ZR modules capable of reaching 120 km with power consumption under 18W, enabling cost-effective IP-over-DWDM architectures for AI, cloud, and 5G networks.

DWDM/CWDM Active and Passive Product Lines: The company's DWDM and CWDM active and passive products find wide application in artificial intelligence computing infrastructure, data center networks, telecommunications FTTx broadband access and uplink networks, wavelength division networks, industrial-grade fiber applications, and 5G/6G mobile networks.

3. Quality Assurance and Reliability

All C-LIGHT products undergo rigorous quality control. The company implements comprehensive MES (Manufacturing Execution System) monitoring and management throughout production, with automated production and data management for core debugging processes. Every product receives 100% testing before shipment, and the company offers a 3-year warranty with professional technical support and guidance