16Mar, 2026
    GIGALIGHT Successfully Launches First-Generation XT-1.6T DR16 NPO Linear Silicon Photonics Engine

    March 16, 2026, Shenzhen, China. – The era of optical interconnects based on NPO/CPO is approaching. GIGALIGHT today announced the successful development of its XT-1.6T DR16 NPO linear silicon photonics engine, confirming that the NPO (Near-Packaged Optics) ecosystem—both domestically and internationally—has now taken shape.

    XT-1.6T DR16-NPO Silicon Photonics Engine Overview

    The 1600G NPO adopts a socket-based form factor. The product dimensions comply with the OIF-Co-Packaging-3.2T-Module-01.0 standard, combined with LPO linear direct-drive technology and flip-chip bonding technology.

    Compared with traditional NPO/CPO architectures, the linear NPO silicon photonics engine eliminates the DSP, significantly reducing system-level power consumption and overall cost.

    Product Photo

    Application Scenarios

    Key Features

    1.6T CPO DR16 Silicon Photonics Engine

    • 16 × 100G PAM4 architecture
    • Supports up to 500 m transmission distance
    • Power consumption < 16 W

    EL-OSFP External Light Source Module

    • Front-facing optical port design
    • Supports 16-channel CWL high-power light sources

    Key Performance Specifications

    Transmitter:

    The optical eye diagram shows excellent performance, with a typical TDECQ of only 2.2 dB. The module fully complies with the IEEE 802.3bs DR4 standard, enabling seamless interoperability with conventional DR4 optical modules that use DSPs, and supporting hybrid deployment of both new and legacy architectures.

    Receiver:

    At a BER of 1E-6, the sensitivity of all channels is better than –5 dBm, ensuring sufficient link budget for reliable operation.

    The launch of the XT-1.6T DR16 NPO linear silicon photonics engine marks an important milestone for GIGALIGHT as it moves toward the next generation of high-integration 1.6T / 3.2T scale-up AI computing optical interconnects.

    According to the roadmap, GIGALIGHT will soon introduce the second-generation 1.6T DR16 NPO linear silicon photonics engine, further validating its readiness for commercial deployment. Additional 1.6T and 3.2T NPO silicon photonics engines are also under active development.

    The first-generation XT-1.6T DR16 NPO silicon photonics engine will be demonstrated live at OFC 2026 through GIGALIGHT’s commercial partners.

    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 III-V optical modules, silicon photonics modules and silicon-based NPO/CPO engines, liquid-cooled optical modules, passive optical components, Active Optical Cables (AOCs), Direct Attach Cables (DACs), coherent optical communication modules, OPEN DCI BOX subsystems based on coherent and O-band DWDM optical modules, and UHD SDI video optical transceivers. GIGALIGHT focuses on applications including AI data centers, 5G transport networks, metropolitan WDM transmission, and ultra-HD broadcast and video, positioning itself as an innovative designer of high-speed optical interconnect hardware solutions.

    10Mar, 2026
    GIGALIGHT Launches ColorX 400G PSM DWDM4 O-BAND Silicon Photonics Module Supporting 30 km DWDM, Breaking Through the Coherent Barrier

    March 10, 2026, Shenzhen, China. – GIGALIGHT, a company committed to differentiated technologies, has recently announced the launch of its latest 400G QSFP-DD PSM DWDM4 optical module based on the O-Band (original band). This new product further expands the company’s O-Band DWDM product portfolio and provides a cost-effective new solution for 400G DWDM links.

    20260310-1

    1. Introduction to the ColorX 400G QSFP-DD PSM DWDM4 O-Band Silicon Photonics Module

    The product is based on 4×100G PAM4 silicon photonics modulation technology, covering 16 wavelengths with a 200 GHz channel spacing.

    O-band (1310 nm window) DWDM technology, leveraging its natural zero-dispersion characteristics, redefines a cost-efficient DCI interconnection standard for 400GE.

    Key Features:

    • DCM-Free Operation:
      Operating in the zero-dispersion region of the O-band, eliminating the need for expensive and bulky dispersion compensation modules (DCM). This significantly simplifies line card design and reduces insertion loss.
    • Ultra-Low Power Consumption:
      Utilizing advanced silicon photonics integration technology, the module achieves industry-leading power efficiency (power consumption < 11 W), making it ideal for high-density data center deployments.
    • Ultra-Low Latency:
      By eliminating the DSP-based dispersion compensation used in coherent modules, the transmission latency of the optical module is significantly reduced.
    20260310-5

    2. Application Scenarios of the ColorX 400G QSFP-DD PSM DWDM4 O-BAND Silicon Photonics Module

    • Metro Access and Aggregation Networks: Provides a cost-effective solution for 5G fronthaul and enterprise private line services.
    • Data Center Interconnect (DCI): Supports short- to medium-reach transmission within 30 km, meeting the requirements of distributed computing infrastructure.
    • Open Optical Networks: Decouples from white-box equipment, improving network deployment flexibility.

    15 km Data Center Interconnect (without SOA amplifier).

    30 km Data Center Interconnect (with SOA amplifier)

    20230310-3

    30 km Data Center Interconnect (with SOA amplifier)

    20230310-4

    3. Industry Value of the ColorX O-BAND Optical Modules

    According to the Product Director of Eoptolink:
    “O-Band has unique advantages in metro network scenarios due to its dispersion characteristics. The newly launched 400G DWDM4 module addresses the urgent market demand for cost-effective DWDM solutions for short- and medium-reach transmission, and is particularly suitable for data center interconnect (DCI), telecom edge network upgrades, and various niche markets that require high cost-performance solutions.”

    Product roadmap:

    ColorX O-BAND 100G QSFP28 DWDM1 – a complementary and breakthrough solution to 100G coherent technology.
    ColorX O-BAND 200G QSFP-DD PSM DWDM4 – a complementary and breakthrough solution to 200G coherent technology.
    ColorX O-BAND 400G QSFP-DD PSM DWDM4 – a complementary and breakthrough solution to 400G coherent technology.
    ColorX O-BAND 800G QSFP-DD PSM DWDM4 – a complementary and breakthrough solution to 800G coherent technology.
    ColorX O-BAND 800G OSFP PSM DWDM4 – a complementary and breakthrough solution to 800G coherent technology.

    We believe that Eoptolink’s O-BAND DWDM technology journey will bring new value and fresh possibilities to users and the entire industry.

    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.