Silicon photonics technology is moving from the lab to large-scale deployment. The industry widely regards 2026 as the inaugural year for commercial adoption of CPO (Co-Packaged Optics). TSMC has announced the mass production launch of its COUPE photonic interconnect platform, and NVIDIA has invested over $6.5 billion in the optical interconnect sector within just three months. These signals make it clear: the bottleneck for AI compute clusters has shifted from the computational chips themselves to the data transmission channels between chips. Traditional copper cable electrical interconnects have reached their physical limits in terms of power consumption, bandwidth, and latency, making them unable to meet the expansion needs of million-card training clusters. Silicon photonics and CPO technologies offer a feasible "optics-in, copper-out" path forward.
The core thesis of this article is that silicon photonics is not a short-term speculative theme, but a fundamental restructuring of communication architecture driven by AI compute demand. This transformation is reshaping the value distribution logic of the optical communication industry chain—design capabilities and advanced packaging are replacing discrete device assembly as the new centers of value. For crypto market investors, participating in US silicon photonics concept stocks via Gate’s stock trading has become a practical way to track this industry trend.
Why Has Silicon Photonics Upgraded from a Technical Alternative to the Core Bottleneck for AI Compute?
The scale of AI model training is evolving from ten-thousand-card clusters to hundred-thousand and even million-card clusters. At this scale, the physical limitations of traditional electrical interconnects become glaringly apparent: every meter of signal transmission through copper cables adds unacceptable attenuation and latency; power consumption rises from less than 10% in thousand-card clusters to over 30% in million-card clusters. There’s a well-known industry consensus: when a cluster exceeds 50,000 GPUs, the marginal cost of electrical interconnects surpasses that of the compute chips themselves.
CPO technology integrates high-speed optical engines with switch chips or AI compute chips on the same substrate using advanced packaging, restricting high-speed electrical signal transmission to millimeter-scale distances and handing off medium- and long-distance transmission to optical fibers. Compared to traditional pluggable optical modules, CPO reduces power consumption by more than 40%, triples bandwidth, and halves latency. The fundamental shift is that optical interconnects are no longer an optional "add-on" component—they are now as essential as compute chips in the infrastructure hierarchy.
At its May 2026 technology forum, TSMC positioned its COUPE photonic interconnect platform as the most critical layer in future AI platform architectures and announced the start of mass production for the world’s first 200 Gbps microring modulator. ASE Group CEO Wu Tianyu also stated unequivocally that optical communication replacing part of electronic communication is a clear direction, and CPO mass production in 2026 is only a matter of time. These signals from the industry’s upstream leaders show that silicon photonics is evolving from a technical alternative to a must-have for AI infrastructure.
How Is the Value Distribution in the Optical Communication Industry Chain Undergoing Structural Change?
In the traditional optical module industry chain, value is dispersed among upstream assembly of discrete devices such as optical chips and electrical chips. The core competitiveness of optical module manufacturers lies in procurement and integration, not in fundamental technical barriers. Silicon photonics shifts the industry focus upstream, concentrating value and applying semiconductor manufacturing logic to reshape the optical module industry chain that once depended on discrete device assembly.
The key impact is that companies with PIC (Photonic Integrated Circuit) design capabilities and advanced packaging gain significant influence in the industry chain. Previously, optical module manufacturers were mainly assemblers of discrete components; with silicon photonics, design and integration capabilities become the new value centers. For example, leading optical module companies like InnoLight and Eoptolink continue to benefit from the 800G/1.6T generational upgrade, but industry profits are tilting toward manufacturers with independent PIC design capabilities.
A deeper structural shift comes from the entry of semiconductor manufacturing and packaging giants. TSMC, leveraging its COUPE platform, has incorporated photonic integration into its advanced process service portfolio. ASE Group and Xunxin-KY are entering optical engine packaging through SiP (System-in-Package) technology. This means the profit center of the silicon photonics industry chain is moving from traditional optical module manufacturers to those with semiconductor manufacturing and packaging capabilities. This trend aligns with the broader direction of the AI chip market—whoever controls advanced packaging controls the pricing power of next-generation compute infrastructure.
What Industry Trends Are Reflected in NVIDIA’s $6.5 Billion Investment Spree?
In spring 2026, NVIDIA made highly systematic, intensive investments in the optical interconnect sector: $2 billion each to Coherent and Lumentum in March, another $2 billion to Marvell three weeks later, $500 million to Corning in early May, and participation in Ayer Labs’ Series E funding. In three months, the total investment exceeded $6.5 billion, covering the entire technology chain from optical devices and interconnect architectures to optical I/O chips.
This concentrated investment is not a financial play, but a supply chain security strategy. NVIDIA’s GPU sales depend heavily on upstream optical interconnect component supply. According to LightCounting, constrained by indium phosphide material shortages, the traditional EML optical chip route faces significant supply gaps in 2026, which silicon photonics solutions are expected to fill. NVIDIA’s capital moves are essentially about locking in silicon photonics capacity for the next three years, ensuring its AI server shipments are not hampered by interconnect bottlenecks.
From an industry perspective, NVIDIA’s investments have directly changed the market status of related companies. After Lumentum released an unexpectedly strong earnings report in February 2026, its stock surged over 7% in a single day, was subsequently added to the S&P 500 and Nasdaq 100 indices, and its optical communication component capacity is sold out through 2028. Coherent also hit a historic high, driven by NVIDIA’s investment. This demonstrates that upstream suppliers with scarce technologies are gaining unprecedented pricing power and capital premiums in the AI compute supply chain.
How Are Silicon Photonics Concept Stocks Polarizing Between US and Taiwan Markets?
US silicon photonics concept stocks focus on "definers" of technical standards and system integration. Marvell, through strategic partnership with NVIDIA, is expected to play a key role in the NVLink Fusion ecosystem, contributing to custom XPU and optical interconnect architectures. Broadcom’s Tomahawk series of CPO switch chips has become the standard for AI data centers. Credo acquired Israeli silicon photonics company DustPhotonics for $750 million, aiming to build a complete technology stack from electrical interconnects to silicon photonics.
In Taiwan, silicon photonics concept stocks are characterized as "executors" supporting the supply chain. In April 2026, catalyzed by Credo’s acquisition, 12 Taiwan stocks including Lianya, Hwa Sun Optoelectronics, Zhongda-KY, Shangquan, Optical Mask, Chuangwei, Qianding, and WIN Semiconductors hit their daily limit up. Borouwei controls optical passive components, Lianya supplies laser sources, Shangquan collaborates deeply with TSMC to develop fiber array connection technology, and Fanquan’s optical path positioning detection technology significantly improves silicon photonics packaging yields. Display giants AUO and Innolux are actively developing MicroLED as a short-range light source for CPO.
In mainland China, InnoLight and Eoptolink, as leaders in 800G/1.6T optical modules, are direct beneficiaries. Yuanjie Technology, Shijia Photonics, and Changguang Huaxin have domestic substitution capabilities in CW light sources. The core logic behind the polarization is that US market capitalization centers on technical standards and system integration, while Taiwan and China focus on manufacturing and packaging support. For investors, the two types of targets correspond to different risk-return profiles—the former benefits from technical barriers and gross margin advantages, while the latter gains from capacity expansion and order certainty.
How Does Gate Stock Trading Enable Crypto Users to Participate in Silicon Photonics Industry Trends?
Gate has officially launched its stock trading service, fundamentally different from tokenized stock products in the market: Gate Stocks are not on-chain mapped assets or tokenized derivatives, but provide users with access to stock and ETF trading by connecting to compliant brokers. Gate Stocks currently support over 10,000 stocks and ETFs, covering major US exchanges including NYSE, Nasdaq, NYSE Arca, NYSE American, and BATS.
For the silicon photonics theme, Gate Stocks’ US coverage includes the core companies mentioned above. Users can directly use USDT to participate in US stock trading on the platform, with account transfers and trade execution all completed within the same Gate App account system.
From a business model perspective, Gate Stocks operate on a spot trading model, with no funding rates or overnight holding fees, making it more suitable for investors looking to track the silicon photonics industry trend over the long term. The launch of Gate’s stock trading service is essentially a classic case of a crypto trading platform extending into traditional financial assets, reflecting a shift in platform competition from pure crypto assets to cross-asset categories.
According to industry data, the global silicon photonics market reached about $2.81 billion in 2025, is expected to hit $3.51 billion in 2026, and could surpass $31.9 billion by 2035, with a compound annual growth rate over 27.5%. In China, the silicon photonics chip market is projected to reach $327 million to $421.5 million in 2026, with data center and AI accelerator applications accounting for over 55%. Shipments of 800G and 1.6T optical modules will double in 2026, with silicon photonics solutions expected to account for over 50% of 800G and as much as 70–80% of 1.6T.
The tipping point for large-scale deployment of silicon photonics is forming. The core driver of this trend is not hype around technical concepts, but the physical constraints brought by the expansion of AI compute clusters. For crypto market investors, participating in US silicon photonics concept stocks via Gate’s stock trading is now a direct way to track this industry trend. Risks to watch include: CPO packaging yield ramping slower than expected, competition from alternative technologies such as LPO, and fluctuations in terminal AI investment cycles. True value realization in the silicon photonics industry will require validation from large-scale production data between 2027 and 2028.
FAQ
What are the main differences between silicon photonics technology and traditional optical module technology?
Silicon photonics deeply integrates optical components with silicon-based semiconductor manufacturing processes, directly combining optical engines and AI chips via CPO packaging. Traditional optical modules rely on discrete optical and electrical components, resulting in larger size, higher power consumption, and lower integration.
Why did NVIDIA invest over $6.5 billion in the optical interconnect sector in just three months?
NVIDIA’s intensive investment in optical interconnects is meant to lock in silicon photonics capacity for the next three years, ensuring its AI server shipments are not limited by interconnect bottlenecks and addressing supply gaps in the traditional EML optical chip route.
What is the projected market size for the silicon photonics industry in 2026?
The global silicon photonics market is expected to reach about $3.51 billion in 2026. In China, the market is projected to be between $327 million and $421.5 million, with data center and AI accelerator applications accounting for over 55%.
Which companies represent silicon photonics concept stocks in US and Taiwan markets?
Representative US stocks include Lumentum, Coherent, Marvell, Broadcom, and Credo. In Taiwan, key companies include Lianya, Hwa Sun Optoelectronics, Shangquan, Borouwei, Xunxin-KY, and others.
How does Gate’s stock trading service differ from tokenized stock products?
Gate Stocks are not on-chain mapped assets or tokenized derivatives. Instead, they connect directly to compliant brokers to provide stock and ETF trading, and users can participate in US stock trading using USDT.
Which silicon photonics concept stocks are supported by Gate Stocks?
Gate Stocks cover major US exchanges like NYSE and Nasdaq. The core US silicon photonics concept stocks are within the supported trading range. Users can invest directly with USDT after completing KYC and meeting access requirements.
What are the main risks facing the silicon photonics industry?
Key risks include slower-than-expected CPO packaging yield ramp, competitive diversion from technologies like LPO, and demand fluctuations caused by changes in the AI investment cycle.
When is the tipping point for large-scale deployment of silicon photonics expected?
2026 is seen as the inaugural year for commercial CPO adoption, but large-scale production and performance realization are expected to gradually appear between 2027 and 2028. Continuous tracking of yield data and order status from industry chain companies is needed.
