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The QSFP DD LR8 400G is a high-performance 400Gbps QSFP-DD optical transceiver designed for long-range communication over single-mode fiber (SMF) up to 10 kilometers. Utilizing an 8-lane MUX/DEMUX architecture, the module converts 8 channels of 50Gbps (PAM4) electrical input into optical signals and multiplexes them into a single 400Gbps optical output. On the receiver side, the process is reversed to deliver 8 channels of 50Gbps (PAM4) electrical output. This module is compliant with IEEE 802.3bs (400GBASE-LR8), QSFP-DD MSA and CMIS4.0 specifications, making it suitable for Ethernet, data center interconnect, enterprise, and InfiniBand networking applications.
The module features dual LC connectors, operates with a single +3.3V power supply, and supports a temperature range from 0°C to 70°C. With a maximum power consumption of 14.5W, it ensures efficient operation for high-speed optical networks. Its precise optical characteristics include a lane wavelength range from 1272.55nm to 1310.19nm, high extinction ratios, and reliable sensitivity. Designed for scalability and robust performance, the CT-400G-QDD-LR8 meets the stringent requirements of modern optical communication networks while being fully RoHS compliant.
All of our optical transceivers come with a lifetime warranty.
The CT-400G-QDD-LR8 is a hot-pluggable QSFP-DD optical module designed for 10 km Ethernet applications. It provides 400 Gb/s aggregate bandwidth by multiplexing 8×50 Gb/s PAM4 electrical lanes into 8 optical LAN-WDM channels, combined into a dual LC interface. On the receiver side, the module de-multiplexes the optical input into 8 channels and converts them to 50 Gb/s PAM4 electrical outputs. Host-based FEC is required to support 10 km transmission. The module operates on a single +3.3 V supply, consumes up to 14.5 W, and integrates digital diagnostics monitoring (DDM) with CMIS 4.0 management.
| Parameter | Value |
|---|---|
| Wavelengths | 1272.55–1310.19 nm (8 lanes) |
| TX avg launch power | −2.8 to +5.3 dBm |
| Total launch power | ≤ +13 dBm |
| OMA (per lane) | 0.2 to +5.7 dBm |
| Extinction ratio | ≥ 3.5 dB |
| TDECQ | ≤ 3.3 dB |
| RX avg input power | −9.1 to +5.1 dBm |
| RX sensitivity (OMA) | ≤ −6.5 dBm |
| Stressed RX sensitivity | ≤ −4.3 dBm |
| RX damage threshold | ≤ +6.3 dBm |
| SMSR | ≥ 30 dB |
| LOS assert / de-assert | −20 / −10 dBm |
At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers is designed to cater to various requirements, ensuring that you receive the best solutions for your projects. We understand the importance of timely delivery, and our efficient processes are geared towards providing you with the products you need as quickly as possible. Our dedicated team works tirelessly to ensure that your orders are processed and dispatched promptly, so you can rely on us for swift and reliable service.
We recognise that every project is unique, and our flexible approach allows us to adapt to your specific needs. Whether you require immediate delivery or have more complex requirements, we are here to support you every step of the way. Our commitment to customer satisfaction means that we go above and beyond to ensure that you receive your SFP transceivers in a timely manner, without compromising on quality. Trust Carritech to deliver the solutions you need, when you need them.
En Carritech Optics, garantizamos la calidad y fiabilidad de nuestros transceptores ópticos. Por eso ofrecemos con orgullo una garantía de por vida en todos los productos como testimonio de nuestro compromiso con la excelencia y la satisfacción del cliente.
Nuestra garantía de por vida proporciona una cobertura completa durante todo el ciclo de vida de sus transceptores ópticos, asegurándole una total tranquilidad al elegir Carritech Optics. La garantía cubre:
Si alguna vez necesita hacer una reclamación de garantía, nuestro equipo está aquí para ayudarle. Solo tienes que ponerte en contacto con nuestro equipo de asistencia con los datos de tu producto y te guiaremos a través de un proceso rápido y sin complicaciones para resolver el problema.
Carritech Optics se dedica a proporcionar soluciones ópticas de alta calidad en las que puede confiar a largo plazo. Con nuestra garantía de por vida, puede invertir con confianza en nuestros productos, sabiendo que estamos con usted en cada paso del camino.
At Carritech Optics, every product we supply undergoes a meticulous testing process designed to guarantee exceptional quality, reliability, and consistency. Our manufacturer operates within a professional laboratory environment, where advanced testing equipment and industry-standard procedures are used to carefully evaluate each item.
Opticode de Carritech es una solución avanzada de programación de transceptores que le ofrece una flexibilidad total en su red óptica. Diseñado para garantizar una compatibilidad perfecta con una amplia gama de sistemas OEM, Opticode le permite reconfigurar rápidamente los transceptores para satisfacer sus requisitos específicos. El resultado es un mayor control, una reducción de costes y una infraestructura más adaptable y preparada para el futuro.
Nuestro equipo de profesionales multilingües está a su disposición para ayudarle a entender nuestros productos y satisfacer sus necesidades. Solo tiene que introducir sus datos a continuación y nuestro equipo se pondrá en contacto con usted.
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