Polariton Technologies

What Polariton Technologies does

Polariton Technologies AG is a Swiss photonic integrated circuit designer and manufacturer, founded in 2019 as a spin-out from ETH Zurich, that develops plasmonics-based silicon photonics devices for high-speed optical interconnects. The company's core technology uses plasmonic circuits to implement electro-optic modulators that are materially smaller (10 microns, roughly 300-500x shorter than comparable silicon photonics devices) and faster (up to 1 THz bandwidth) than incumbent silicon photonics modulators, enabling higher-density parallel optical links with ultra-low energy per bit. Its product portfolio comprises plasmonic electro-optic modulators, silicon photonic light engines, high-speed silicon photonics transmit chips, and O-band products that combine plasmonics with Lightwave Logic's electro-optic polymer for 400Gb/s per lane and 800Gb/s per lane scaling.

Polariton operates a sales-led, direct hardware go-to-market, selling silicon photonics chips and components to optical transceiver manufacturers that integrate the parts into modules shipped into AI infrastructure and hyperscale data center customers. The company reported shipping chips to three leading transceiver manufacturers in 2025 and disclosed large double-digit sales growth for that year. It co-founded Swiss PIC in late 2025 to secure domestic photonic integration manufacturing capacity and expanded a partnership with Lightwave Logic in March 2025 to develop combined plasmonics/EO polymer O-band products. The company's operating geographies are anchored in Switzerland, with a global customer footprint served through direct sales.

In April 2026 Polariton was acquired by Marvell Technology Inc., becoming a wholly-owned subsidiary within Marvell's optical platform organization. Prior to acquisition, Polariton had raised modest early-stage funding from Venture Kick and Innosuisse and was selected for the Innosuisse Scale-up Coaching program in 2025. Leadership consists of co-founder and CEO Claudia Hoessbacher alongside co-founders and Co-CTOs Benedikt Baeuerle and Wolfgang Heni.

Name

Polariton Technologies

Legal name

Polariton Technologies AG

Website

https://polariton.ch

Company type

Private

Founded year

2019

Operating status

Acquired

Headcount range

11–50 employees

Short description

Polariton Technologies AG is a Swiss photonic IC designer and manufacturer of plasmonics-based silicon photonics electro-optic modulators and transmit chips, sold to optical transceiver manufacturers serving AI and hyperscale data center interconnect applications. Acquired by Marvell Technology in April 2026.

Ownership category

akta.pro rank

Product category

Photonic Integrated Circuits / Silicon Photonics Components

NAICS

Semiconductor and Related Device Manufacturing (334413), Semiconductor and Other Electronic Component Manufacturing (3344)

SIC

Semiconductors & Related Devices (3674)

akta.pro primary industry

Optoelectronic / Photonics Foundries (Silicon Photonics/LED/Laser) (HDAHACAG)

akta.pro secondary industries

Optical Transceivers (SFP/SFP+/SFP28/QSFP/QSFP-DD/OSFP) (HDAFAEAE), Optoelectronic Receivers & Transceivers (Photodetectors/Optical Modules) (HDAHALAM)

Keywords

• Silicon photonics chips
• Plasmonic electro-optic modulators
• High-speed optical interconnects
• Data center photonics
• Photonic integrated circuits

Headquarters

HQ city

Zürich

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Supply Chain, Marketing or Sales

Revenue model

1. Silicon Photonics Chip Sales: Sale of high-speed silicon photonics transmit chips with proprietary plasmonic modulators to transceiver manufacturers. The company reported large double-digit sales growth in 2025.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Polariton Technologies designs and manufactures high-speed silicon photonics transmit chips with proprietary plasmonic electro-optic modulators, shipping to optical transceiver manufacturers for use in AI-era and hyperscale data center interconnect applications at 3.2T and beyond. The company also offers silicon photonic light engines and combined plasmonics/EO-polymer O-band products targeting 400Gb/s per lane and scaling to 800Gb/s per lane.

Product overview

Polariton Technologies is a Swiss photonic integrated circuit designer and manufacturer specializing in plasmonics-based silicon photonics devices for high-speed optical interconnects. The company offers a portfolio of products including plasmonic modulators, high-speed electro-optic modulators, silicon photonic light engines, and transmit chips that address interconnect bandwidth bottlenecks in AI infrastructure and hyperscale data centers. Founded in 2019 as a spin-out from ETH Zurich, Polariton developed technology for over 15 years in partnership with ETH Zurich before being acquired by Marvell Technology in April 2026. The products support optical scaling from current generations to 3.2T and beyond for AI and cloud data center applications.

Differentiator

Problem solved

Functional benefit

Products and services

• High-Speed Silicon Photonics Transmit Chips Silicon photonics transmit chips with proprietary plasmonic modulators sold to optical transceiver manufacturers for integration into high-speed modules used in AI and hyperscale data center interconnect applications at 3.2T and beyond.
• High-Speed Electro-optic Modulators Integrated photonics and electro-optic modulators based on plasmonic circuits that enable higher-density parallel optical links with ultra-low energy per bit compared to traditional silicon photonics, supporting 3.2T optical modules and beyond.
• Silicon Photonic Light Engines Silicon photonic light engines enhanced with plasmonics technology for AI-era optical networks, supporting bandwidth scaling in AI infrastructure and hyperscale data center applications.
• O-band Plasmonics and Electro-Optic Polymer Products O-band plasmonic products combined with electro-optic polymer for high-speed optical links targeting AI and datacenter applications, supporting 400Gb/s per lane and scaling to 800Gb/s per lane.

Quantifiable outcome

• Modulators 300-500x shorter (10 microns) and 10x faster (1 THz) than current SiPho devices

Named customers1 record

Segments2 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and foundational.

• Marvell TechnologycoreStrategic or Co-development Partner · 22 April 2026Marvell acquired Polariton Technologies to enhance its silicon photonics capabilities. The acquisition adds Polariton's specialized engineering team and modulation technology to Marvell's optical platform capabilities, enabling higher density and more energy-efficient optical links for AI and cloud data center applications at 3.2T and beyond.
• ETH ZurichfoundationalStrategic or Co-development Partner · 22 April 2026Polariton was founded in 2019 as a spin-out from ETH Zurich and has conducted over 15 years of research in plasmonic optical communications alongside the university.
• Lightwave LogiccoreTechnology or Integration · 10 March 2025Expanded technical partnership to jointly develop combined plasmonics and electro-optic polymer solutions for high-speed optical links targeting AI and datacenter applications. Polariton developed O-band products using Lightwave Logic's EO polymer that are now available for sampling with select customers, targeting 400Gb/s per lane and scaling to 800Gb/s per lane.
• Swiss Photonics Integration Center (Swiss PIC)foundationalStrategic or Co-development Partner · 1 January 2023Polariton co-founded Swiss PIC (Swiss Photonics Integration Center) in 2023 along with Paul Scherrer Institute, OST Eastern Switzerland University of Applied Sciences, and Ligentec. Swiss PIC opened a manufacturing center for photonic integration at Park Innovaare in Villigen, Switzerland.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Coherent Corp: Broad portfolio of photonic components, lasers, and materials serving optical communications and datacom. Comparable as a component supplier addressing the same AI/datacenter optical interconnect market.
• Lumentum: Major supplier of lasers and optical components used inside high-speed transceivers for data centers. Sells into the same transceiver OEMs that Polariton supplies with modulator chips.
• Broadcom: Supplies optical components including VCSELs and integrated photonic devices for data center transceivers. Overlaps with Polariton in supplying the silicon photonic and optical interconnect component supply chain.
• Ciena: Supplies optical networking equipment and coherent optical components for hyperscalers, carriers, and DCI. Comparable broad incumbent addressing the same AI/cloud optical bandwidth demand through different parts of the stack.
• Cisco (Acacia Communications): Acacia, now part of Cisco, supplies coherent DSPs and optical interconnect modules to hyperscalers and carriers. Targets the same AI/cloud optical interconnect roadmap that Polariton's plasmonic modulators serve.
• Intel (Intel Silicon Photonics): Established silicon photonics platform producing optical transceivers and integrated photonic components for data centers. Competes with Polariton's modulator technology for design wins inside hyperscale and AI infrastructure customers.

Direct peers

• Marvell Technology: Acquired Polariton in April 2026 and has its own silicon photonics platform for AI/cloud optical interconnect. Direct overlap in high-speed silicon photonic transmit chips and optical DSPs targeting 3.2T modules.

Emerging players

• Effect Photonics: Develops integrated photonic components and coherent optical engines for data center interconnect. Compares to Polariton as an emerging player in silicon photonics for high-speed DCI applications.
• Dust Photonics: Silicon photonics company focused on high-speed transceivers for AI and hyperscale data center interconnects. Closely comparable emerging silicon photonics competitor targeting the same customer base.
• Lightwave Logic: Developer of electro-optic polymers for high-speed modulators; existing technical partner of Polariton. Directly comparable as an emerging material/modulator technology targeting the same 400G/800G per lane roadmap.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds5 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Polariton Technologies