# HyperLight Corporation

> HyperLight is a Cambridge, Massachusetts company that designs and manufactures photonic integrated circuits on thin-film lithium niobate (TFLN), a material prized for ultrafast, low-voltage electro-optic modulation. A 2018 spin-out from Marko Loncar's lab at Harvard, the company built what it describes as the industry's first high-volume, qualified 6-inch TFLN manufacturing line - now expanding to 8-inch - and packages it as a modular TFLN Chiplet platform. Its modulator chips target the bandwidth and power-efficiency demands of AI data centers, telecom optical networks and high-performance computing, enabling 1.6 Tbps-class links at CMOS-level drive voltages.

- **Founded:** 2018
- **Headquarters:** Cambridge, Massachusetts, United States
- **Founders:** Mian Zhang (Co-founder & CEO), Marko Loncar (Co-founder; Harvard Professor of Electrical Engineering), Cheng Wang (Co-founder), Christian Reimer (Co-founder), Kevin Luke (Co-founder)
- **Team size:** ~75 employees
- **Products:** TFLN Chiplet Platform, IMDD Tx PICs, DP-IQ Tx PICs, Packaged Modulators, Custom TFLN Solutions
- **Notable:** Spun out of Harvard's Loncar lab in 2018 on breakthroughs in fabricating chip-scale lithium niobate modulators., Demonstrated the industry's first hybrid-integrated transmitter with a DFB laser on a TFLN platform (2021)., Announced TFLN transmitter chips supporting energy-efficient 1.6 Tbps transceiver modules (2023).

## Products & services

- **TFLN Chiplet Platform** — A modular, scalable ecosystem - process, design tools, MPW runs, packaging and testing - built on a qualified 6-inch (and 8-inch pilot) thin-film lithium niobate manufacturing line.
- **IMDD Tx PICs** — Intensity-modulation direct-detection transmitter photonic integrated circuits for high-speed datacenter links, supporting 200 Gbit/s per lane.
- **DP-IQ Tx PICs** — Dual-polarization IQ transmitter PICs for coherent optical communications, supporting up to 1.6 Tbit/s per wavelength.
- **Packaged Modulators** — Fully packaged TFLN electro-optic modulators with sub-volt drive voltages and >100 GHz bandwidth.
- **Custom TFLN Solutions** — Bespoke thin-film lithium niobate photonic circuits and consulting for telecom, sensing, LiDAR, quantum and microwave-photonics applications.

## Achievements

- Spun out of Harvard's Loncar lab in 2018 on breakthroughs in fabricating chip-scale lithium niobate modulators.
- Demonstrated the industry's first hybrid-integrated transmitter with a DFB laser on a TFLN platform (2021).
- Announced TFLN transmitter chips supporting energy-efficient 1.6 Tbps transceiver modules (2023).
- Debuted 110 GHz IQ modulators enabling 240 GBaud operation.
- Operates what it calls the industry's first and only high-volume, qualified 6-inch TFLN production line, with an 8-inch pilot line.
- Launched the TFLN Chiplet platform (2025) and partnered with UMC/Wavetek to scale manufacturing (2026).
- Enabled industry-first driverless 448G PAM4 transmission with Ciena and McGill using a sub-volt direct-drive TFLN modulator (ECOC 2025).

## Latest updates

- **2024-09** — Closed a $37M Series B led by Summit Partners with Xora Innovation and Foothill Ventures; Peter Chung joined the board.
- **2025-03** — Launched the TFLN Chiplet platform with scalable 6-inch production and an 8-inch expansion for AI and photonics infrastructure.
- **2025-09** — With Ciena and McGill, demonstrated the industry's first driverless 448G PAM4 transmission over 500m using a sub-volt direct-drive TFLN modulator at ECOC 2025.
- **2026-03** — Announced a strategic partnership with UMC/Wavetek to mass-produce TFLN chiplets, and demonstrated a low-power 1.6T-DR8 TFLN reference transceiver assembled by TFC at OFC 2026.

## Links

- Website: https://hyperlightcorp.com
- LinkedIn: https://www.linkedin.com/company/hyperlight-corporation

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Profile page: https://yespress.io/hyperlight
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Last updated: 2026-06-14