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Copackaged optics represents one of those infrastructure shifts that most of us will never see, touch, or fully understand, yet it quietly determines whether our video calls freeze, whether our medical records transfer instantly between hospitals, or whether artificial intelligence systems can process information quickly enough to be useful. The technology sits inside data centres, those windowless buildings scattered across industrial parks that have become as essential to modern life as power stations. Understanding how copackaged optics works matters because these technical choices shape what becomes possible in our increasingly digital world, determining who gets access to reliable networks and who gets left buffering.
The Problem That Demanded a Solution
Walk into any data centre today and you’ll encounter a problem that has been building for years. The appetite for data grows exponentially whilst the physical laws governing how we move information remain stubbornly fixed. Traditional network architectures, where optical modules sit at the periphery connected by copper traces, increasingly resemble trying to water a garden through progressively longer hoses.
Engineers have pushed traditional approaches as far as physics allows. At data rates beyond 800 gigabits per second, the power required to push electrical signals across copper becomes prohibitive. Signal degradation increases. The entire system strains against fundamental limitations. Something had to change because the old methods simply couldn’t sustain what we’re asking networks to do.
How Integration Changes Everything
Copackaged opticsv solves this by putting optical components right next to the electronic chips that need them, integrated within the same package. The switch ASIC and optical engine sit in immediate proximity, dramatically reducing the distance electrical signals must travel before becoming light.
This proximity matters enormously:
• Power consumption drops dramatically
Early implementations show 30 to 50 per cent reductions compared to pluggable optics. In an industry where electricity costs drive budgets, this transforms operations. Data centres already consume staggering power, projected to account for 10 per cent of global consumption by 2030.
• Thermal management becomes feasible
Less power means less heat, creating a virtuous cycle where cooling systems require less energy. The compounding effects matter in facilities running thousands of switches.
• Signal integrity improves
Shorter electrical paths mean cleaner signals and more reliable data transmission. Quality affects everything downstream, from streaming to transaction processing.
• Bandwidth density increases
Placing optics and electronics together enables higher data rates in smaller spaces. Current systems operate at 51.2 and 102.4 terabits per second.
• Latency decreases
Signals travel faster over shorter distances. In applications from medical diagnostics to high-frequency trading, microseconds matter.
Singapore’s Strategic Investment
Singapore’s National Semiconductor Translation and Innovation Centre (NSTIC) provides a window into how nations position themselves for technological futures. The centre collaborates with companies across Singapore, the United States, and Europe to co-develop copackaged optics technology solutions tailored to performance and scalability needs. This isn’t abstract research; it’s translational work aimed at moving innovations from laboratory to production.
NSTIC’s focus on flat optics and silicon photonics, supported by cleanroom facilities and semiconductor infrastructure, represents strategic investment in capabilities that matter. The centre addresses barriers that prevent smaller companies from entering semiconductor development: massive capital requirements for equipment, access to fabrication capabilities, and intellectual property protection.
Singapore commits substantial resources, including a 500 million dollar R&D fabrication facility for advanced packaging, recognising that countries either develop capabilities in critical technologies or find themselves dependent on others’ priorities. Professor Yeo Yee Chia’s work at A*STAR on copackaged optics technology exemplifies how research institutions translate theoretical advances into practical applications.
The Market Reality
Copackaged optics market tells a story of recognition and urgency. Projections indicate the market will exceed 1.2 billion dollars by 2035, growing at 28.9 per cent annually from 2025 to 2035. CPO network switches will dominate revenue generation, with each switch potentially incorporating up to 16 photonic integrated circuits. Optical interconnects for AI systems will constitute approximately 20 per cent of the market.
These aren’t speculative figures. They reflect commitments from major infrastructure providers who’ve concluded that traditional approaches cannot scale to meet demand. The transition represents fundamental changes in how we build systems, driven by the limits of existing approaches.
What This Means Beyond Data Centres
The applications extend beyond data centres. Telecommunications networks seeking to support 5G and 6G deployment need the bandwidth density and power efficiency that copackaged optics enables. High-performance computing for scientific research, from climate modelling to genomics, depends on faster data transfer. Edge computing applications benefit from more efficient optical interconnects.
Each use case ultimately affects people. Faster medical imaging analysis means earlier disease detection. More efficient scientific computing accelerates research timelines. Improved telecommunications infrastructure affects educational access and economic opportunity. The technology itself is neutral, but its deployment shapes possibilities.
The Infrastructure We Rarely See
We’ve built a world where invisible infrastructure determines what’s possible. Most people never think about optical transceivers or switch ASICs, just as they don’t think about water treatment plants or electrical substations. Yet all of them shape daily life profoundly.
Copackaged optics represents unsexy infrastructure work that enables visible applications. That technical decision enables AI applications that seem magical, telecommunications networks that feel instantaneous, and data centres that can handle exponential growth in information transfer. The innovation isn’t in what users see; it’s in the systems making that possible. These decisions about network infrastructure compound over time, determining whether networks can scale sustainably or hit limits forcing painful transitions. Choosing better approaches now through Copackaged optics means building foundations that can support what comes next.
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