Intel adds multi-channel lasers to its silicon photonics toolbox

Intel has developed an 8-lane parallel-wavelength laser array to tackle the growing challenge of feeding data to integrated circuits (ICs). 

Haisheng Rong

Optical input-output (I/O) promises to solve the challenge of getting data into and out of high-end silicon devices. 

These ICs include Ethernet switch chips and 'XPUs', shorthand for processors (CPUs), graphics processing units (GPUs) and data processor units (DPUs).

The laser array is Intel's latest addition to its library of silicon photonics devices. 

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Intel sets a course for scalable optical input-output

• Intel is working with several universities to create building-block circuits to address its optical input-output (I/O) needs for the next decade-plus.

• By 2024 the company wants to demonstrate the technologies achieving 4 terabits-per-second (Tbps) over a fibre at 0.25 picojoules-per-bit (pJ/b).

Intel has teamed up with seven universities to address the optical I/0 needs for several generations of upcoming products.

The initiative, dubbed the Intel Research Center for Integrated Photonics for Data Centre Interconnects, began six months ago and is a three-year project.

No new location is involved, rather the research centre is virtual with Intel funding the research. By setting up the centre, Intel’s goal is to foster collaboration between the research groups.

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