A semiconductor manufacturing plant in Lanarkshire is being expanded to produce more than 100 million lasers a year. The components are measured on the scale of a chip, but they are becoming part of the physical infrastructure required to move data between the machines running artificial intelligence.
Sivers Semiconductors announced on 3 September that it will invest US$30 million in its photonics manufacturing operation at Hamilton International Technology Park in Blantyre, near Glasgow.
The investment will expand the plant’s capacity to more than 100 million continuous-wave distributed-feedback lasers a year.
The expansion begins during the second half of 2026 and is expected to become operational in the final quarter of 2027.
New manufacturing processes and additional automation will be installed. Sivers is also changing the way it manufactures photonic semiconductors, increasing production inside Scotland while retaining external foundry, packaging and manufacturing partners, including partners in Asia.
The company calls the model Hybrid Manufacturing.
The immediate market is the infrastructure being constructed around artificial intelligence.
AI computing is normally described through processors, data centres and electricity. Behind those systems is another physical requirement: enormous quantities of information have to move continuously between processors, switches, servers and racks.
Electrical connections become increasingly difficult as data rates, distances and computing density increase. Optical communications use light to move information through fibre at very high speeds.
The Glasgow factory makes semiconductor lasers that generate that light.
Why an AI computer needs lasers
A modern AI data centre is not one computer.
It contains large numbers of processors operating together. Training and running large AI models can require information to pass repeatedly between graphics processing units, specialised accelerators, memory and networking equipment.
As computing clusters become larger, communication between those machines becomes part of the engineering problem.
Photonics converts electrical information into optical signals that can travel through fibre.
Sivers manufactures indium phosphide semiconductor devices used for this purpose.
Indium phosphide, usually abbreviated to InP, is a compound semiconductor. It has properties that make it useful for producing lasers and other high-speed optical devices.
The technology differs from the silicon chips normally associated with computing.
Silicon is highly effective for logic and conventional electronic circuits. Compound semiconductors can perform functions that silicon alone cannot perform as efficiently, including generating light at wavelengths used in optical communications.
The continuous-wave distributed-feedback lasers being expanded in Glasgow provide stable optical output that can be integrated into high-speed communications systems.
Sivers says demand is increasing as data-centre operators move towards faster optical networking and place optical connections progressively closer to processors and network switching chips.
The company is working across several architectures, including conventional pluggable optical systems, near-packaged optics and co-packaged optics.
Those technologies differ in where the optical components sit inside computing infrastructure.
The general direction is towards moving optical communication closer to the computing hardware as the amount of data being transferred increases.
The Glasgow operation existed before the present AI boom
The factory is not a new arrival created by the current investment cycle.
Its history runs through CST Global, a University of Glasgow spin-out established to commercialise compound-semiconductor technology.
The company’s own historical account and the University of Glasgow’s published case study give different dates for the original foundation of CST Global. Both record the company’s origins in University of Glasgow semiconductor research and its later development into a commercial photonics manufacturer.
The present manufacturing location entered the story in 2010.
CST Global acquired the Intense wafer fabrication operation at Hamilton International Technology Park and took over its manufacturing facility.
The plant became the company’s production base.
By 2016, CST Global had reached production of one million distributed-feedback lasers a month.
In 2017, Swedish technology company Sivers IMA Holding acquired CST Global. The acquisition was accompanied by investment in manufacturing equipment and product development.
The business was subsequently renamed Sivers Photonics as the parent company became Sivers Semiconductors.
The manufacturing operation remained in Scotland.
The University relationship continued after the spin-out
The connection with the University of Glasgow did not end when the company became independent.
Research and manufacturing continued to cross between the university and the commercial operation.
One of the central institutions in that relationship is the James Watt Nanofabrication Centre.
The centre began operating in 2006 and now contains around £35 million of equipment for nanoscale research and fabrication.
Its electron-beam lithography systems can create patterns measured in nanometres. That capability has been used in the development and manufacture of semiconductor laser components.
The University says its researchers worked with CST Global and later Sivers on advanced fabrication methods and laser development, including devices for optical-access networks and later data-centre applications.
Kelvin Nanotechnology, the University’s commercial nanofabrication subsidiary, also participated in the manufacturing relationship.
In 2017, CST Global and the University agreed to install and operate a metalorganic chemical vapour deposition machine at the company’s foundry.
The equipment was owned by the University but operated within the commercial manufacturing facility, allowing research work and production capability to occupy the same industrial environment.
The arrangement also provided university researchers and students with access to commercial semiconductor manufacturing.
By March 2026, Sivers told the University that technology developed through the relationship had contributed to the shipment of 45 million advanced lasers across applications including optical networks, sensing, LiDAR and AI data centres.
The new manufacturing target is more than twice that cumulative number every year.
From one million lasers a month to more than 100 million a year
The production numbers show how the market has changed.
CST Global recorded the milestone of shipping one million distributed-feedback lasers per month in 2016.
The expanded Glasgow operation is being designed for annual capacity above 100 million continuous-wave distributed-feedback lasers.
That is manufacturing capacity rather than a guarantee that 100 million devices will be sold every year.
Sivers says the investment is being made in anticipation of customer production programmes expected to increase during 2027.
The company’s latest financial reporting shows why it is expanding before all of those orders have arrived.
On 1 September, two days before announcing the Glasgow investment, Sivers reported that its commercial opportunity pipeline had increased to US$1.2 billion by the end of July, up 268 per cent from December 2025.
The company also reported production orders in its photonics and wireless businesses and said several AI data-centre programmes were moving towards qualification and potential production during 2027.
Sivers raised 700 million Swedish kronor during the second quarter of 2026 and said part of that capital would be used to expand Glasgow manufacturing.
The company is therefore committing manufacturing capacity ahead of the full conversion of its AI opportunity pipeline into production revenue.
Semiconductor manufacturing requires that sequencing because equipment has to be ordered, installed, qualified and integrated into production before customer demand reaches full volume.
Scotland has a photonics industry larger than most people encounter directly
The Sivers plant sits inside a wider Scottish industry concentrated around Glasgow and central Scotland.
A UK Government semiconductor sector study published on 2 September 2026, one day before the Sivers announcement, describes Glasgow as one of Britain’s most substantial and historically established concentrations of semiconductor and photonics capability.
The study estimates that Scotland’s photonics industry generates more than £1.2 billion in annual turnover, employs approximately 6,400 people and exports 97 per cent of its output.
More than 50 companies form part of the Photonics Scotland network.
The industrial base includes laser manufacturing, optical communications, sensing, quantum technology, semiconductor fabrication and specialised equipment.
The academic infrastructure includes the University of Glasgow, the University of Strathclyde’s Institute of Photonics and the Fraunhofer Centre for Applied Photonics.
The sector study also identifies semiconductor manufacturing and design capabilities elsewhere in Scotland, including silicon wafer production at Livingston, semiconductor design in Edinburgh, silicon fabrication at Glenrothes and silicon-carbide manufacturing in Fife.
These activities do not form a single vertically integrated Scottish semiconductor industry. Different companies occupy different parts of global supply chains.
The Sivers factory occupies one specialised section: compound-semiconductor photonics.
The factory is Scottish; the manufacturing system is international
Sivers Semiconductors is headquartered in Kista, Sweden.
Sivers Photonics has its headquarters and manufacturing operation in Scotland.
The company’s manufacturing strategy combines the Glasgow plant with external foundries, packaging companies and other manufacturing partners.
Sivers says its long-term model is intended to maintain approximately one unit of internal indium-phosphide laser capacity for every two units available through partner foundries.
The US$30 million investment therefore does not represent an attempt to bring the entire supply chain into Scotland.
It increases the amount of strategically important manufacturing that Sivers controls directly while retaining outside capacity.
The company says this provides flexibility if customer demand rises quickly and reduces dependence on a single manufacturing route.
That approach reflects the structure of modern semiconductor production.
Design, wafer fabrication, lithography, epitaxy, testing, packaging and assembly can take place in different facilities and different countries.
The finished optical component can therefore contain Scottish manufacturing and intellectual property while remaining part of an international production system.
AI infrastructure is creating demand far beyond the processor
The investment also shows how the economics of artificial intelligence extend beyond the companies manufacturing GPUs and building data centres.
The UK Government’s semiconductor study says worldwide semiconductor sales reached US$796 billion in 2025, an increase of 39 per cent since 2022, with AI computing identified as the principal driver of recent growth.
That demand reaches into memory, power electronics, networking, advanced packaging and photonics.
Increasing computing power without increasing the ability to move information between processors creates another constraint inside the system.
Optical interconnects are one response.
The result is that a manufacturing plant in Lanarkshire can participate directly in the global AI infrastructure buildout without manufacturing AI processors and without operating a data centre.
Its product occupies the communications layer between computing systems.
Glasgow’s role was built through research infrastructure as well as companies
The history of the Sivers operation also records how an advanced manufacturing capability can develop over decades.
University research produced semiconductor knowledge and specialist fabrication capability.
A spin-out converted part of that work into a commercial company.
The company acquired an existing fabrication plant rather than constructing its manufacturing base entirely from the beginning.
University equipment and expertise continued to support product development.
Volume telecommunications contracts created manufacturing experience.
Foreign ownership brought further capital while production remained in Scotland.
Those stages occurred before the present demand for AI optical infrastructure.
The James Watt Nanofabrication Centre celebrated its twentieth anniversary in March 2026. The University says it has supported almost 200 high-technology companies and now conducts more than 100 electron-beam lithography jobs each week.
Its equipment has supported research ranging from semiconductor lasers to quantum devices, sensors and nanoscale electronics.
The commercial relationship with Sivers provides one route from that research infrastructure into repeated industrial production.
The investment comes one day after the UK published a new map of semiconductor capability
The timing places two separate announcements beside each other.
On 2 September, the UK Government published its Semiconductor Sector Study 2026.
On 3 September, Sivers announced the US$30 million Glasgow expansion.
The government study identifies 703 companies involved in UK semiconductor activity, including 295 dedicated semiconductor businesses.
It estimates that dedicated companies generated £10.6 billion of revenue and £7.5 billion of gross value added in 2025 and directly employed around 16,350 people.
The study describes the UK industry as a collection of regional specialisms rather than a domestic version of the enormous fabrication industry found in East Asia.
Glasgow’s specialism is photonics and compound-semiconductor technology.
The report identifies access to skilled workers, scale-up capital and operating costs, particularly energy, among the constraints reported by semiconductor businesses.
Sivers’ investment represents a private decision to expand physical production within that environment.
The next phase will be manufacturing rather than laboratory development
The Glasgow operation has already produced millions of semiconductor lasers.
The US$30 million programme is intended to change its scale.
Sivers says the expansion will increase automation, add manufacturing processes and provide capacity for more than 100 million lasers annually.
The facility is expected to become operational in the fourth quarter of 2027.
The company has not announced that all of that capacity is already contracted.
Its investment is based on anticipated customer production ramps and increasing demand across AI data centres and optical networking.
The commercial outcome will therefore depend on customer qualification, production orders and the speed at which optical architectures are adopted inside future computing systems.
The industrial asset will remain in Lanarkshire regardless of which individual customer programme reaches volume first.
For more than a decade, the Hamilton plant has manufactured semiconductor lasers for communications and sensing markets.
The current investment is designed to move it into a different production range.
The global AI infrastructure programme is usually visible through enormous data-centre buildings, electricity connections and the processors installed inside them.
In Scotland, one part of that infrastructure will be considerably smaller.
It will leave a semiconductor fabrication plant near Glasgow in quantities that Sivers expects could exceed 100 million devices a year.
SOURCES
Sivers Semiconductors Invests USD 30 Million to Expand European Photonics Manufacturing for AI Datacenters — Sivers Semiconductors — 3 September 2026 — https://www.sivers-semiconductors.com/press/sivers-semiconductors-invests-usd-30-million-to-expand-european-photonics-manufacturing-for-ai-datacenters/
Vickram Vathulya’s Letter to Shareholders, Interim Report Q2 2026 — Sivers Semiconductors — 1 September 2026 — https://www.sivers-semiconductors.com/2026/09/01/vickram-vathulyas-letter-to-shareholders-interim-report-q2-2026/
Sivers Photonics Company History — Sivers Semiconductors — accessed 3 September 2026 — https://www.sivers-semiconductors.com/company-history/
2025 Annual Report — Sivers Semiconductors — May 2026 — https://www.sivers-semiconductors.com/wp-content/uploads/2026/05/Sivers_annualreport_2025_final.pdf
Semiconductor Sector Study 2026 — Department for Science, Innovation and Technology — 2 September 2026 — https://www.gov.uk/government/publications/semiconductor-sector-study-2026/semiconductor-sector-study-2026
Optoelectronics Collaboration Transforms Company to a Global Leader in Semiconductor Laser Products — University of Glasgow — accessed 3 September 2026 — https://www.gla.ac.uk/research/excellence/cstgcasestudy/
UofG Nanofabrication Facility Marks 20 Years of Achievement — University of Glasgow — March 2026 — https://www.g
