FIBERTOP Launches New 400G QSFP-DD DCO 80km Optical Transceiver Module

FIBERTOP today announced the launch of the new 400G QSFP-DD DCO 80km optical transceiver module. The module brings high-speed long-distance data transmission capabilities to data centers and communication networks.

In response to the growing demand for network connectivity in recent years, the 400G QSFP-DD DCO 80km optical transceiver module delivers outstanding performance and reliability, providing users with high-capacity, high-bandwidth solutions. Enhanced by advanced optical technology and precision electronic components, this module achieves a transmission rate of up to 400Gbps and supports a transmission distance of 80 kilometers.

FIBERTOP's QFP-CTQG-ZRC 400G ZR QSFP-DD DCO modules based on DP- 16QAM supporting extended C-band, polarization diversity coherent detection and advanced electronic link equalization. Chromatic dispersion compensation can be applied to the receive side of the demodulator. This module is managed utilizing the Two Wire Interface that is specified in the Common Management Interface Specification (CMIS). The module has following system performance and features:

1. Support Flex-grid channel spacing DWDM in C-band
2. Support Client-side Interfaces: 400GAUI-8
3. Support Line-side DP-16QAM with CFEC
4. Standard QSFP-DD type 2 form factor
5. 76pin QSFP-DD MSA compliant connector
6. Compliant to CMIS 5.0
7. Compliant to OIF Implementation Agreement for Coherent CMIS, Rev 01.1
8. OIF-400ZR-01.0_reduced2.pdf
9. RoHS compliant

• The application field of the module is widely used for short haul (ZR). As shown in figure1, it is comprised of high-data lanes, a single 3.3V power supply, an IIC interface for module control and status report, and dedicated alarm and control pins (not shown on the figure1).

	Figure 1: Functional Diagram of Module

• The module uses a 76-pin QSFP-DD MSA QSFP-DD Hardware Specification connector for all electrical interfaces with the host card, whereas the optical interfaces on the line side are provided through the optical receptacles on the QSFP-DD. The module can be portioned into three functional parts: TX path, RX path and Control & Power block.

• The host interface is comprised of a total of 8 high-speed SerDes lanes. This allows module to support one interfaces for 400GbE application.

The module is compatible with the QSFP-DD (Quad Small Form Factor Pluggable Double Density) interface standard, ensuring high compatibility with existing devices and infrastructures. Users can easily upgrade their networks to accommodate higher data requirements without major overhauls.

The 400G QSFP-DD DCO 80km optical transceiver module from FIBERTOP also boasts excellent power efficiency and thermal management capabilities. Its low-power design contributes to reduced energy consumption and lower operational costs for data centers. Additionally, the module features a well-engineered thermal dissipation structure to ensure stable operation under heavy workloads, providing reliable performance.

We are Launches the 400G QSFP-DD DCO 80km optical transceiver module,offering users higher speeds and longer-distance data transmission capabilities. We believe this new product will bring tremendous business value to users in areas such as large-scale data centers, cloud computing, and inter-regional network connections."