On March 7, 2023, Qingdao Hisense Broadband Multimedia Technology Co., Ltd. (hereinafter referred to as Hisense Broadband) announced the launch of a new 800G linear interconnect optical cable for artificial intelligence and machine learning, and will conduct a live demonstration at OFC in 2023. Hisense’s 800G linear interconnect optical cable adopts the Non Retimed architecture under the CEI-112G Linear standard interface, based on a single wave 100G VCSEL technology platform, and uses multimode optical fiber connections. The transmission distance can reach over 30m. Due to the removal of DSP, this product has significant advantages in power consumption and latency. In practical application scenarios, this product can be seen as the optical fiber version of a direct cable DAC, so Hisense Broadband named it a direct cable.
For a long time, the industry has been looking for a low-power, low-latency linear direct drive solution to improve the power consumption and latency issues of optical modules brought about by traditional CDR and DSP platforms. Hisense’s 800G oDAC products optimize optical links to reduce reflection, and improve system linearity through signal integrity design, thereby achieving power consumption as low as 4W and latency less than 1 ns. In addition, the signal compensation and equalization capabilities of the switch system chip have been significantly improved. With OM4 optical fiber, the product has a bit error rate as low as 5E-7 over a transmission distance of 50 meters, and achieves post FEC error free performance through long-term streaming testing.
Hisense Broadband was established in 2003 and is a leading manufacturer of optical chips, optical modules, and multimedia terminals worldwide. The company is headquartered in Qingdao, Shandong Province, China. It has high-speed optical chips, optical modules, and multimedia terminal research and development centers in Qingdao, Wuhan, and Silicon Valley in the United States. Large production bases are located in Qingdao, Jiangmen, Thailand, and the United States. Currently, the total number of employees is over 4000, and the annual delivery volume of optical modules exceeds 32 million.
Hisense Broadband is subordinate to Hisense Group Holding Company. Hisense Group Holding Company was established in 1969 and has listed companies in Shanghai, Shenzhen, Hong Kong, and Tokyo, including Hisense Video, Hisense Home Appliances, and Sandian Holdings. Its business covers multiple fields such as multimedia, home appliances, IT intelligent information systems, and modern service industries. At present, Hisense has 31 industrial parks and production bases in Qingdao, Shunde, Huzhou, Czech Republic, South Africa, Mexico, and a total of 23 research and development institutions in Qingdao, Shenzhen, the United States, Germany, and more than 10000 engineering and technical personnel, including more than 8000 masters and doctors.