April 28, 2025, Shenzhen, China. – GIGALIGHT, a global leading provider of optical communication technologies, has unveiled its 100G QSFP28 DWDM1 optical transceiver based on the O-Band (Original Band), further expanding its high-speed optical interconnection product portfolio. This product encompasses 16 wavelength bands with a 200GHz frequency spacing, making it suitable for a variety of short-distance, low-cost DWDM transmission scenarios.

Technical Highlights:

• High-precision O-Band Wavelength Division Multiplexing (WDM)
• 100Gbps Single-Channel Rate: Supports PAM4 modulation and is compatible with IEEE/ITU standards, ensuring seamless integration with existing networks.
• Zero Dispersion Advantage: The O-Band inherently exhibits low dispersion in single-mode fibers, minimizing signal distortion in medium-to-short-distance transmissions without the need for additional compensation.
• Low Power Consumption Design: Consumes less than 3.5W, a 20% reduction compared to similar products, contributing to the construction of green data centers.

Application Scenarios: Flexible Adaptation for High-Density Networks

This product can be widely applied in:

• Metropolitan Access and Aggregation Networks: Provides cost-effective solutions for 5G front-haul and enterprise private lines.
• Data Center Interconnection (DCI): Supports medium-to-short-distance transmissions within 80km, meeting the demands of distributed computing power.
• Open Optical Networks: Decouples from white-box equipment, enhancing network deployment flexibility.

Data Center 10km Interconnection (without SOA Amplifier)

Data Center 30km Interconnection (with SOA Amplifier)

Metropolitan Access and Aggregation Application Scenario (30km with SOA)

Industry Value: Filling the Market Gap for O-Band High-Speed Modules

The Product Director of GIGALIGHT stated, “The O-Band offers unique advantages in metropolitan scenarios due to its dispersion characteristics. The newly launched DWDM1 module fills the market’s urgent need for cost-effective, medium-distance 100G solutions, particularly suitable for operator edge network upgrades.” According to Dell’Oro’s forecast, the global DWDM optical transceiver market is expected to exceed $5 billion by 2025, and GIGALIGHT’s O-Band strategy will strengthen its competitiveness in niche markets.

Future Plans: GIGALIGHT will continue to optimize its O/C/L multi-band product matrix and accelerate the commercial deployment of 400G/800G DWDM technologies.

About GIGALIGHT

As an open optical networking explorer, Gigalight integrates the design, manufacturing, and sales of both active and passive optical devices and subsystems. The company’s product portfolio includes optical modules, silicon photonics modules, liquid-cooled modules, passive optical components, active optical cables, direct attach copper cables, coherent optical communication modules, and OPEN DCI BOX subsystems. Gigalight focuses on serving applications such as data centers, 5G transport networks, metropolitan WDM transmission, ultra-HD broadcast and video, and more. It stands as an innovative designer of high-speed optical interconnect hardware solutions.