AI and Energy Infrastructure, Explained Plainly, The Physical Layer

The Physical Layer

AI and Energy Infrastructure, Explained Plainly

A journal on the physical constraints behind the AI buildout: power, grid connection, data centres, cooling and the supply chains that gate them. Written to be understood by anyone.

Equity Bottom-Up

<ul><li>Lumentum makes the tiny lasers that turn data into light, so AI chips can talk to each other across a data centre.</li><li>Those lasers have to be grown on a fragile crystal that only a few factories in the world can work at volume, and demand is running well ahead of supply.</li><li>That is why Nvidia, a chip company, paid $2 billion to make sure Lumentum builds more of them.</li></ul>

Lumentum makes the tiny lasers that turn data into light, so AI chips can talk to each other across a data centre.Those lasers have to be grown on a fragile crystal that only a few factories in the world can work at volume, and demand is running well ahead of supply.That is why Nvidia, a chip company, paid $2 billion to make sure Lumentum builds more of them.

Nvidia paid Lumentum $2 billion for lasers, because silicon cannot make light

Asia Pac ECM and Index Rebal, Shenton Research

Ke Yan, CFA, FRM

Asia Pac ECM and Index Rebal

Asia Pac IPO & Placement Research, China Biotech

Shenton Research

Shenton Research is an independent Asia Pacific equity specialist. Our quantitative research covers index rebalancing flows, alongside exchange data analytics accross Asia Pacific. On the equity capital markets side, we focus on Asia Pacific ECM, especially biotech and TMT. Our lead analyst is frequently cited by international media.

Thematic (Sector/Industry)

<ul>
<li>Anthropic launched Claude Haiku 5.5 at up to 90% lower prices, Reflection AI unveiled its Beam open-weight model, and OpenAI's annualized revenue was below recent estimates.</li>
<li>OpenAI rolled GPT-6 out across ChatGPT, AWS added Zhipu's GLM-5.3 to Bedrock, TSMC's third-quarter revenue rose 50.9% YoY and Samsung guided record operating profit.</li>
<li>DeepSeek neared USD 12bn of new funding, Moonshot closed at about USD 50bn, Firmus withdrew its ASX IPO and SpaceX sought about USD 40bn of debt for Nvidia chips.</li>
</ul>


Anthropic launched Claude Haiku 5.5 at up to 90% lower prices, Reflection AI unveiled its Beam open-weight model, and OpenAI's annualized revenue was below recent estimates.
OpenAI rolled GPT-6 out across ChatGPT, AWS added Zhipu's GLM-5.3 to Bedrock, TSMC's third-quarter revenue rose 50.9% YoY and Samsung guided record operating profit.
DeepSeek neared USD 12bn of new funding, Moonshot closed at about USD 50bn, Firmus withdrew its ASX IPO and SpaceX sought about USD 40bn of debt for Nvidia chips.


This Week in AI (Oct 4-10): Haiku 5.5's Throat-Cutting Prices; OpenAI Revenue Trails Expectation

Independent research on the U.S. markets, Baptista Research

Baptista Research

Independent research on the U.S. markets

Baptista Research is an independent financial research house focused on the U.S. markets. We provide equity research as well as credit research reports on the top-listed U.S. companies with most of our focus on technology, consumer goods and services, automobiles, industrials, oil and gas, pharma, and healthcare. Our research has served more than 3000 institutional investors including mutual funds, hedge funds, banks, family offices, and various buy-side firms. We operate a research subscription service where institutions, as well as retail investors, can have priority access to all our research. We also have a wide distribution of our research reports across some of the top global financial platforms. Apart from equity research and credit research, we also provide advisory services with respect to mergers & acquisitions (M&A), private equity/ venture capital fundraising, valuation reports, and investment management services for corporates.
Baptista Research is owned and managed by Ishan Majumdar, an ex-Venture Capitalist/ Investment Banker, a Chartered Accountant, and a Masters’ degree holder in Management from HEC Paris. Ishan has nearly a decade of experience in Mergers and Acquisitions, Leveraged Buyouts (LBOs), Venture Capital Investing, Corporate Strategy, and Valuation in front-office roles at the likes of BNP Paribas CIB, Credit Agricole CIB, Groupe Danone, and TIW Private Equity. He has worked on and closed multiple acquisition deals, leveraged buyouts, and start-up investment transactions.

<ul><li>Lumentum Holdings reported strong fourth-quarter fiscal 2026 results, driven by higher demand across components and systems.</li><li>Revenue increased 109% year-over-year to $1.01 billion, marking the eighth consecutive quarter of growth.</li><li>Components revenue rose 22% sequentially and systems revenue increased 30%.</li></ul>

Lumentum Holdings reported strong fourth-quarter fiscal 2026 results, driven by higher demand across components and systems.Revenue increased 109% year-over-year to $1.01 billion, marking the eighth consecutive quarter of growth.Components revenue rose 22% sequentially and systems revenue increased 30%.

Lumentum’s $400 Million OCS Engine — Can AI Demand Keep Scaling?

Independent Fund Manager, Swaen Capital

Swaen Capital

Independent Fund Manager

Swaen Capital is a Singapore based licensed independent fund manager with an open architecture, a non bias financial platform creating access to the best custodians and investment managers. Our focus lies within the wealth management business, covering client relationships, financial planning, advisory, as well as discretionary portfolio management. We have developed strategic alliances with other leading independent firms to complement and extend our offerings to clients (global hedge fund research capability, alternative investment offerings, corporate finance, fund structuring & administration, etc). Our know-how, extensive global network and long standing presence in Asia allows us to provide a global footprint and at the same time enables us to capitalize on regional opportunities.

<ul>
<li>The copper wall is here. Above ~200Gbps per lane, copper can no longer carry signals more than a few metres without prohibitive power and signal-integrity penalties. The industry's answer is to move the optics off the faceplate and onto the chip package itself — Co Packaged Optics (CPO).</li>
<li>Adoption is switch-first. NVIDIA and Broadcom are shipping CPO switches in 2026 on external-laser designs; the XPU side and an in-package laser are deferred by packaging and reliability limits, not yet solved.</li>
<li>Money moves with the architecture. As the optical engine moves into the package, value migrates away from module assemblers toward the layers that fabricate the optical engine itself.</li>
</ul>


The copper wall is here. Above ~200Gbps per lane, copper can no longer carry signals more than a few metres without prohibitive power and signal-integrity penalties. The industry's answer is to move the optics off the faceplate and onto the chip package itself — Co Packaged Optics (CPO).
Adoption is switch-first. NVIDIA and Broadcom are shipping CPO switches in 2026 on external-laser designs; the XPU side and an in-package laser are deferred by packaging and reliability limits, not yet solved.
Money moves with the architecture. As the optical engine moves into the package, value migrates away from module assemblers toward the layers that fabricate the optical engine itself.


Co-Packaged Optics 101: The Future of High-Density AI Interconnects

Equity Long-Short, Semiconductors, Fabricated Knowledge

Douglas O'Laughlin

Equity Long-Short, Semiconductors

Fabricated Knowledge

Learn more about the world's most important manufactured product. Meaningful insight, timely analysis, and an occasional investment idea.

<ul><li>To make my content readable, this is an optics-only earnings update.</li><li>I will discuss everything together and put together a high-level overview.</li><li>The specific things I am interested in are Marvell’s ZR and custom silicon.</li></ul>

To make my content readable, this is an optics-only earnings update.I will discuss everything together and put together a high-level overview.The specific things I am interested in are Marvell’s ZR and custom silicon.

Optics Earnings (FN, ANET, COHR, LITE, AAOI)

United States

Lumentum Holdings Inc. operates as a holding company. The Company, through its subsidiaries, supplies optical and photonic products. Lumentum Holdings serves data communications and telecommunications, networking, and life-sciences markets worldwide.

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Lumentum Holdings (LITE US)

Nvidia paid Lumentum $2 billion for lasers, because silicon cannot make light

Lumentum makes the tiny lasers that turn data into light, so AI chips can talk to each other across a data centre. Those lasers have to be grown...

The Physical Layer

This Week in AI (Oct 4-10): Haiku 5.5's Throat-Cutting Prices; OpenAI Revenue Trails Expectation

This week in AI: Anthropic cut prices by up to 90% with Claude Haiku 5.5, OpenAI's annualized revenue reached about USD 50bn, and Moonshot closed...

Ke Yan, CFA, FRM

Lumentum’s $400 Million OCS Engine — Can AI Demand Keep Scaling?

Lumentum Holdings reported strong fourth-quarter fiscal 2026 results, driven by higher demand across components and systems. Revenue increased...

Baptista Research

Co-Packaged Optics 101: The Future of High-Density AI Interconnects

The copper wall is here. Above ~200Gbps per lane, copper can no longer carry signals more than a few metres without prohibitive power and...

Swaen Capital

Optics Earnings (FN, ANET, COHR, LITE, AAOI)

To make my content readable, this is an optics-only earnings update. I will discuss everything together and put together a high-level overview.

Fabricated Knowledge

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