Submersible Optical Transceiver For Super Computing


Next generation super computers, quantum computing, AI engines, and high-performance emulation systems are all evaluating the benefits of liquid cooling. Liquid cooling removes the heat more efficiently than airflow, eliminates the noisy, power-hungry fans used in traditional air-cooled systems and enables denser, more-efficient processing boards and systems. 

One technology holding back the adoption of liquid cooling has been the lack of optical transceivers which perform reliability while submersed. A new submersible optical transceiver option with Samtec FireFly™ now solves this problem. 

In this demonstration at SC18 (Super Computing), Arlon Martin of the Samtec Optical Group walks us through a live demonstration of an immersion cooling system with a submersible optical Samtec FireFly transceiver running at 112 Gpbs (x4-28 Gbps/lane).

The demo highlights the error-free operation possible with new FireFly optical transceivers when fully submersed in 3M™ Fluorinert™ Electronic Liquid FC-43.

Liquid cooling is extremely important for next generation super computers because about 40% of the energy of a typical super computer is used for cooling. Liquid cooling reduces energy usage, and it allows designers to make denser, more compact, and higher performing computer systems.

The FireFly transceiver is a mid-board optical module which is less than 25% of the size of a QSFP module, and uses less than 50% of the power of a normal transceiver.  This allows for very dense, high performance computing applications.

Samtec FireFly Optical cable system

The live demo features a fully submersed Xilinx Virtex UltraScale+ VCU118 Evaluation Kit with a new optical FireFly transceiver which supports links up to 100m at lane speeds of 28 Gbps per channel.

The optical FireFly™ System features the industry’s leading miniature footprint. This allows for higher density and closer proximity to the IC. The results are a simplified board layout, enhanced signal integrity from IC to faceplate and reduced power dissipation.

FireFly Optical and Copper - Samtec

FireFly micro cable assembly systems are available in both optical and copper designs. Both systems use the same two-piece, low insertion force connector system with surface mount tails to eliminate through-holes in the board. Click here to watch a video about FireFly.

Customer samples of the submersible FireFly optical modules are available now and full production is planned for later in 2019.

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