Transceivers. Immersion Cooling
Lumulus offers a complete portfolio of optical transceivers for liquid immersion cooling, ranging from 25G SFP28 to 800G QSFP-DD. Designed to operate fully immersed in dielectric fluids, they deliver reliable optical performance, low power consumption, and long-term stability for AI, HPC, and hyperscale data centers.
As AI workloads continue to increase, liquid immersion cooling provides a more efficient alternative to traditional air cooling, improving thermal management and reducing energy consumption. Compatible with fluorinated fluids and mineral oils, our immersion-ready transceivers support deployment in liquid-cooled servers, switches, and high-performance computing platforms.
Performance and Signal Integrity
- Speeds from 25G up to 800G per port
- Ultra-low power consumption
- Internal CDR / integrated DSP on both transmit and receive channels
- 850nm VCSEL / 1310nm DML optical engines with PIN photodetector arrays
- Built-in digital diagnostic monitoring
- Reach up to 100m over OM4 MMF (multimode) or up to 10km over SMF (single-mode)
Reliability and Standards Compliance
- SFP28 / QSFP56 / OSFP / QSFP-DD MSA compliant
- IEEE 802.3 compliant (802.3cd, 802.3db, 802.3bm)
- CMIS Rev. 4.0 compliant
- RoHS compliant (lead-free)
- Hot-pluggable, Ethernet / Telecom / InfiniBand use cases
Durable Construction and Optimized Operating
- Specialized sealing technology preventing dielectric fluid ingress into the optical assembly
- Rated for continuous operation immersed at depths of up to 10 meters
- Compatible with a wide range of dielectric fluids, including fluorinated fluids and mineral oils
- MPO-12, MPO-16, and LC/FC pigtail interfaces available depending on model
