Multi-wavelength Photonics Delivers Higher Throughput for AI Fabrics
What you’ll learn:
- How do multichannel fiber connections work?
- Why multichannel fiber connections are needed to meet AI workloads.
Artificial intelligence (AI) gobbles up all available memory, compute power, and communication bandwidth. It’s in this space where fiber optics shines, with the ability to deliver more bandwidth to cloud data centers. At this point, most fiber links utilize a single wavelength, but the fibers are capable of handling multiple wavelengths simultaneously.
I talked with Vivek Raghunatham, CEO at Xscape Photonics, about the company’s ChromX technology, which supports multiple-wavelength communication on a single fiber (watch the video above). The CMOS silicon wafer platform is an optically pumped laser platform that can deliver more than 10X the bandwidth of a single-wavelength system while reducing overall power requirements as well (see figure).
One key aspect of Xscape’s approach is that the performance of each wavelength is consistent. This is important because it provides consistency at the transmit and receiver ends. These would otherwise need to be adjusted or accommodated to provide reliable communication.
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About the Author
William G. Wong
Senior Content Director - Electronic Design and Microwaves & RF
I am Editor of Electronic Design focusing on embedded, software, and systems. As Senior Content Director, I also manage Microwaves & RF and I work with a great team of editors to provide engineers, programmers, developers and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.
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I earned a Bachelor of Electrical Engineering at the Georgia Institute of Technology and a Masters in Computer Science from Rutgers University. I still do a bit of programming using everything from C and C++ to Rust and Ada/SPARK. I do a bit of PHP programming for Drupal websites. I have posted a few Drupal modules.
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