Comments on: How Lightmatter Breaks Bandwidth Bottlenecks With Silicon Photonics https://www.nextplatform.com/2024/01/04/how-lightmatter-breaks-bandwidth-bottlenecks-with-silicon-photonics/ In-depth coverage of high-end computing at large enterprises, supercomputing centers, hyperscale data centers, and public clouds. Mon, 09 Dec 2024 01:06:42 +0000 hourly 1 https://wordpress.org/?v=6.7.1 By: Timothy Prickett Morgan https://www.nextplatform.com/2024/01/04/how-lightmatter-breaks-bandwidth-bottlenecks-with-silicon-photonics/#comment-241819 Mon, 09 Dec 2024 01:06:42 +0000 https://www.nextplatform.com/?p=143455#comment-241819 In reply to Benjamin Colby.

I will check it out.

]]> By: Benjamin Colby https://www.nextplatform.com/2024/01/04/how-lightmatter-breaks-bandwidth-bottlenecks-with-silicon-photonics/#comment-241678 Sat, 07 Dec 2024 18:11:51 +0000 https://www.nextplatform.com/?p=143455#comment-241678 In reply to Slim Albert.

Any thoughts on the “Optical Interposer” technology from Poet Technologies? Seems very similar, although they’ve been working on this tech for over 7 years and not much traction yet.

]]> By: Slim Albert https://www.nextplatform.com/2024/01/04/how-lightmatter-breaks-bandwidth-bottlenecks-with-silicon-photonics/#comment-218596 Sun, 07 Jan 2024 17:33:31 +0000 https://www.nextplatform.com/?p=143455#comment-218596 Celestial’s 7.2 Tb/sec per mm² was quite impressive (and so was Ayar Lab’s approach to material selection in CPO, and Google’s reconfigurable optical interconnect for TPUs) but the nice diagrams provided here for Lightmatter’s Passage really sell the tech very well for me. I love that it’s an interposer, as that is truly integrated into the chip, under the chiplets, with structural stability. Having 48 reticle-limited dies per package should work nicely in a variety of situations. But, especially, 60 Tb/sec per chip, across packages, is fantastic (to me).

This should really help make disaggregated composable systems a properly performing reality (eg. with CXL 3+) I think.

]]> By: Bob Walter https://www.nextplatform.com/2024/01/04/how-lightmatter-breaks-bandwidth-bottlenecks-with-silicon-photonics/#comment-218499 Fri, 05 Jan 2024 03:59:47 +0000 https://www.nextplatform.com/?p=143455#comment-218499 This is nothing spectacular. You should investigate APIC Corporation in Culver City CA.

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