{"id":7753,"date":"2026-03-25T11:14:32","date_gmt":"2026-03-25T17:14:32","guid":{"rendered":"https:\/\/homerunresources.com\/?p=7753"},"modified":"2026-03-25T11:14:35","modified_gmt":"2026-03-25T17:14:35","slug":"why-ais-copper-problem-leads-back-to-fused-silica","status":"publish","type":"post","link":"https:\/\/homerunresources.com\/pt\/why-ais-copper-problem-leads-back-to-fused-silica\/","title":{"rendered":"Why AI\u2019s Copper Problem Leads Back to Fused Silica"},"content":{"rendered":"<p>AI data centers are running into a new constraint: copper. As clusters scale, the copper cables linking GPUs and switches are hitting limits on distance, bandwidth, heat and power.<\/p>\n\n\n\n<p>To move past this \u201cCopper Wall,\u201d the industry is shifting to photonics \u2014 using light instead of electricity to move data. Silicon photonics, optical interconnects and co\u2011packaged optics are moving from niche to necessary in next\u2011generation AI infrastructure.<\/p>\n\n\n\n<p>Almost none of that works without ultra\u2011high\u2011purity fused silica glass. This first article in our 4\u2011part \u201cPhotonics &amp; Fused Silica Glass 101\u201d series explains why that matters and where Homerun fits.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>From Copper Wires to Light<\/strong><\/p>\n\n\n\n<p>In modern AI data centers, the question isn\u2019t just \u201cHow fast is one chip?\u201d It\u2019s \u201cHow efficiently can thousands of chips talk to each other?\u201d<\/p>\n\n\n\n<p>Copper struggles because:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High\u2011speed signals fade quickly over distance.<\/li>\n\n\n\n<li>Pushing more data increases power use and heat.<\/li>\n\n\n\n<li>Physical size and thermal issues limit how densely systems can be built.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Photonics addresses this by moving bits as light through glass or optical waveguides instead of as electrical signals through copper. That is why large technology companies are investing heavily in silicon photonics, optical interconnects and co\u2011packaged optics for AI networks.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>The Quiet Foundation: Fused Silica Glass<\/strong><\/p>\n\n\n\n<p>When investors hear \u201cphotonics,\u201d they usually think about chips and lasers. But these systems depend on a specific class of glass.<\/p>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Ultra\u2011high\u2011purity fused silica is critical in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Semiconductors \u2013 lithography optics, precision windows, wafer handling.<\/li>\n\n\n\n<li>Photonics and optical interconnects \u2013 waveguides, fibers, certain substrates and optical assemblies.<\/li>\n\n\n\n<li>Advanced electronics \u2013 demanding environments where low loss and stability matter.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Fused silica stands out because it combines:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Extreme purity and low optical loss.<\/li>\n\n\n\n<li>High transmission from deep UV to IR.<\/li>\n\n\n\n<li>Low thermal expansion and high thermal shock resistance.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Producing this material is difficult and often expensive. Traditional synthetic routes use chemical precursors and complex, energy\u2011intensive reactors, and supply is concentrated in a small number of large producers. As demand from chips, photonics and fiber grows, cost, ESG profile and security of supply are becoming more important questions.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Where Homerun Fits In<\/strong><\/p>\n\n\n\n<p>Homerun\u2019s silica platform starts with the Santa Maria Eterna (SME) silica sand project in Bahia, Brazil \u2014 a high\u2011purity, low\u2011iron resource that independent testing has confirmed as suitable feedstock for fused silica production.<\/p>\n\n\n\n<p>To unlock more value from this resource, Homerun has funded a research and development program with UC Davis, led by Professor Subhash H. Risbud, a long\u2011time pioneer in silica photonics. So far, this collaboration has delivered several key bench\u2011scale testing results and intellectual property:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Femtosecond laser purification\u2028UC Davis used a femtosecond laser\u2013based thermal process to purify raw SME silica sand to ultra\u2011high purity (+99.99% SiO\u2082) without chemical reagents and without traditional mechanical or chemical purification steps.<\/li>\n\n\n\n<li>Patent application for high\u2011purity silica sand\u2028Homerun and UC Davis have filed a patent application describing a femtosecond laser ablation process that raises purity from 99.75% to +99.99% by significantly reducing impurities such as Ti, Ca, Mg and Fe, again without hazardous chemicals.<\/li>\n\n\n\n<li>Fast Joule Heating (FJH) to silicon carbide\u2028Homerun and UC Davis Materials Science and Engineering have successfully synthesized Silicon Carbide (SiC) with proprietary methods involving electrically generated heat and energy using Homerun&#8217;s raw Belmonte silica sand and Bahia Graphite Corporations (BGC) raw graphite from Bahia, Brazil.<\/li>\n\n\n\n<li>Fast Joule Heating (FJH) to fused silica glass\u2028Most recently, UC Davis produced fused silica glass directly from SME silica sand using a one\u2011step thermoelectric Fast Joule Heating process. In a \u201ctube\u2011within\u2011tube\u201d setup with a conductive medium, the system reaches around 2,000 \u00b0C, above silica\u2019s melting point and converts sand to fused silica glass in seconds, using only electric power and no reagents.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>The plan now is to move from small\u2011scale experiments to larger\u2011scale testing using off\u2011the\u2011shelf equipment, to see if FJH can become a practical production route. These results are at the R&amp;D stage and not yet independently verified, but they demonstrate a credible, IP\u2011backed path toward cleaner, potentially more flexible fused silica production from natural silica.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Why This Matters for Shareholders<\/strong><\/p>\n\n\n\n<p>Our goal with this series is to explain why we are doing this work, not to make near\u2011term promises.<\/p>\n\n\n\n<p>If photonics continues to scale as a solution to AI\u2019s copper bottleneck, demand for high\u2011purity fused silica and specialty optical glass is likely to grow. At the same time, customers are looking more closely at ESG performance, cost and resilience of their materials supply chains.<\/p>\n\n\n\n<p>Homerun\u2019s long\u2011term strategy is to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use our high\u2011quality SME silica resource as a platform.<\/li>\n\n\n\n<li>Develop patent\u2011protected processes that transform that resource into ultra\u2011pure silica and fused silica glass without hazardous chemicals.<\/li>\n\n\n\n<li>Position this capability alongside our solar glass strategy in markets where silica\u2011based materials are central to the energy transition and advanced electronics.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>There are still important technical, scaling and commercial steps ahead, and there is no guarantee our R&amp;D will yield commercial processes or products. But we believe that building expertise at this materials level is one of the best ways to potentially create long\u2011term leverage for our shareholders.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>What\u2019s Next<\/strong><\/p>\n\n\n\n<p>In the remaining three parts of this series, we will cover:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Part 2 \u2013 What Makes Fused Silica Glass So Special?<\/li>\n\n\n\n<li>Part 3 \u2013 Inside Homerun\u2019s UC Davis R&amp;D: From Sand to Fused Silica &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <\/li>\n\n\n\n<li>Part 4 \u2013 From R&amp;D to Opportunity: What Fused Silica Could Mean for Homerun Shareholders<\/li>\n<\/ul>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>AI data centers are running into a new constraint: copper. As clusters scale, the copper cables linking GPUs and switches are hitting limits on distance, bandwidth, heat and power. To move past this \u201cCopper Wall,\u201d the industry is shifting to photonics \u2014 using light instead of electricity to move data. Silicon photonics, optical interconnects and [&hellip;]<\/p>\n","protected":false},"author":1304,"featured_media":7761,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[23,33],"tags":[],"class_list":["post-7753","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-education"],"_links":{"self":[{"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/posts\/7753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/users\/1304"}],"replies":[{"embeddable":true,"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/comments?post=7753"}],"version-history":[{"count":6,"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/posts\/7753\/revisions"}],"predecessor-version":[{"id":7803,"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/posts\/7753\/revisions\/7803"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/media\/7761"}],"wp:attachment":[{"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/media?parent=7753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/categories?post=7753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/homerunresources.com\/pt\/wp-json\/wp\/v2\/tags?post=7753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}