News: Optoelectronics
28 September 2023
LESSENGERS begins volume production of 800G AOCs and transceivers
LESSENGERS Inc of Seoul, South Korea, which provides optical components based on its patented direct optical wiring (DOW) technology, says that its new 800G transceiver product (800G OSFP SR8) will begin volume production in fourth-quarter 2023 and begin shipping to customers.
DOW is a polymer-based air-clad waveguide technology that is particularly useful for optical interconnects in the data-center and high-performance computing environments.
DOW connects active photonic devices such as laser diodes or photodiodes directly to the optical fiber, providing high-density and high-speed optical signal connectivity between switches, servers and other devices within the data center or HPC clusters. This capability enables several operational efficiencies and economic benefits, such as:
- no active alignment – cost-competitive optical coupling;
- no use of multi-channel lens assembly – near-zero optical crosstalk;
- no air gap – dramatically lower reflection noise;
- high degree of freedom in heat sink design – much lower junction temperature.
These attributes are said to make the 800G OSFP SR8 and other products for high-speed active optical cables (AOCs) and transceivers high-performance, highly reliable and cost compelling.
“Demand for optical connectivity in AI clusters is accelerating innovation,” notes Dr Vladimir Kozlov, CEO & founder of market analyst firm LightCounting. “New designs of pluggable and co-packaged optical engines rely on high-density parallel connectivity, which need new packaging and fiber-coupling methods. Direct optical wiring, developed by LESSENGERS, is a great example of such new approaches,” he adds.
“The use of DOW technology enables us to achieve high-performance and low-noise optics by its nature, allowing us to streamline the production process flow with complete automation,” says LESSENGERS’ CEO Chongcook Kim.
LESSENGERS is exhibiting stand MR31 and booth #306 at the European Conference on Optical Communications (ECOC 2023) at the Scottish Exhibition Centre (SEC) in Glasgow, UK (2–4 October).
