About Coherent

Photonics Heritage, Consolidated — Since 1966.

Six decades of laser-source engineering under one roof. Seven formerly independent photonics programs — original Coherent ultrafast, ROFIN industrial, DILAS diode, Lumera picosecond, Lambda Physik excimer and II-VI optics — integrated into a single platform company.

Heritage Timeline

Six Decades of Laser-Source Consolidation

1966

Founded in Palo Alto, CA

Three Stanford physicists found Coherent Radiation Laboratories, releasing the first commercial argon-ion laser the following year — the company that becomes synonymous with scientific-grade photonics.

1985

Lambda Physik Acquisition

Coherent acquires Lambda Physik (Goettingen, DE), bringing excimer laser engineering — 193 / 248 / 308 nm — into the portfolio. This chamber-engineering heritage still anchors today's semiconductor-lithography programs.

2000

Chameleon Ti:Sapphire Launch

Chameleon Ultra launches — a fully automated ultrafast Ti:Sapphire platform that democratizes multiphoton microscopy and shapes biophotonics research for two decades.

2016

ROFIN Acquisition

Coherent acquires ROFIN-Sinar (Plymouth, MI / Hamburg, DE), adding industrial CO2 slab, Q-switched fiber, marking lasers and ultrafast micro-machining platforms. DILAS diode engineering joins through the same transaction.

2017

HighLight & FL-ARM Platform

The HighLight direct-diode and fiber program matures into the industrial workhorse it is today; FL-ARM adjustable ring-mode debuts as a purpose-built platform for EV battery welding.

2022

II-VI Merger

II-VI Incorporated and Coherent merge, consolidating compound-semiconductor, SiC-substrate and precision-optics manufacturing with laser-source engineering under a combined photonics-platform company.

2024

Beam-Combining Productization

Spectral beam combining and coherent beam combining move from research-grade prototypes into productized platforms for directed-energy R&D programs and next-generation industrial brightness applications.

Mission

Advance the Photon — From the Lab Bench to the Production Line.

Coherent was founded on the conviction that laser science only matters when it leaves the university. Six decades later, the same discipline drives the company: every photonics advance should migrate from the physicist's bench to an integrator's line with its measurement dossier intact.

We measure our output in characterized photons, not in units shipped. Each serial leaves Santa Clara, Gilching or Tampere with a characterization dossier — beam quality, spectral figure, power-stability curve, pointing envelope — that becomes part of the integrator's process-validation record. Characterized photons, every time.

Coherent Santa Clara research campus
1966Founded · Palo Alto, CA
20,000+Employees Worldwide (post II-VI)
3Applications-Lab Regions
7Photonics Blood-Lines Consolidated
Want a Tour?

Visit Santa Clara, Gilching or Tampere.

Coherent runs structured OEM-integrator visits at Santa Clara (CA), Gilching (DE) and Tampere (FI) — with live beam-diagnostics demonstrations, applications-lab work on your materials and private engineering sessions.