Coherent, Inc.

Coherent Corp. is a United States-based technology company that develops and manufactures lasers, optical materials, optoelectronic components, semiconductor materials, and integrated photonic systems. The company serves industrial processing, optical communications, electronics, consumer devices, scientific research, aerospace and defense, and other specialized markets. Its products can be found in equipment for precision manufacturing, communications networks, sensing, three-dimensional imaging, semiconductor production, and laboratory applications. The business originated in 1971 as II-VI Incorporated, founded by Carl Johnson and James Hawkey. The original name referred to groups II and VI of the periodic table, reflecting the company’s early work with cadmium telluride and related optical materials. Its initial products included lenses, windows, and mirrors used in carbon-dioxide laser systems. The company expanded its materials and component capabilities over subsequent decades, combining internal development with a long series of acquisitions. II-VI completed an initial public offering in 1987. In the 1990s and 2000s it broadened its portfolio through purchases involving silicon carbide, laser optics, solid-state lasers, thermal-management products, optical coatings, and photonic components. This acquisition-led strategy later extended into semiconductor epitaxy, vertical-cavity surface-emitting lasers, indium phosphide, optical transceivers, and silicon-carbide substrates. A major transformation occurred in 2019 when II-VI acquired Finisar Corporation, strengthening its position in optical communications and high-volume three-dimensional-sensing components. In 2022, II-VI acquired laser manufacturer Coherent, Inc. and adopted the Coherent name. The transaction created a broader photonics company combining II-VI’s optical materials, compound-semiconductor, and communications capabilities with Coherent’s industrial, scientific, and precision-laser businesses. The company is headquartered in Saxonburg, Pennsylvania, north of Pittsburgh, and maintains research, manufacturing, sales, service, and distribution operations in locations around the world. Its brand positioning is based on vertically integrated photonics expertise: it participates in several stages of the technology chain, from optical materials and semiconductor substrates to lasers, modules, components, and systems. As of 2023, the company reported more than 26,000 employees in the reference material. Coherent remains an active publicly traded corporation under the COHR ticker.

Coherent was established in 1966 in the United States as a specialist laser company. Its early identity was tied to the development and manufacture of laser technology for scientific, industrial, and other technically demanding customers. Over time, the company expanded beyond individual laser sources into complete systems, optical assemblies, and application-specific technologies. This allowed it to participate in a wider range of markets where lasers are used for precision processing, measurement, imaging, communications, and research. The company’s growth reflected the increasing importance of photonics in manufacturing and information infrastructure. Industrial customers adopted lasers for cutting, welding, drilling, marking, inspection, and other processes in which concentrated light can provide speed, precision, or reduced material damage. Scientific and instrumentation customers used Coherent products in research, spectroscopy, metrology, and analytical systems. The company also developed offerings for medical and life-science applications, although the precise product mix has changed over time. A significant part of Coherent’s evolution came through the expansion of its technology base and the addition of businesses serving optical communications, electronics, engineered materials, and compound semiconductors. These areas broadened the company’s role from a laser producer to a supplier of multiple layers of the photonics value chain. Materials and semiconductor capabilities can support the manufacture of optical and laser devices, while components and subsystems can be integrated into communications equipment, industrial machinery, and scientific instruments. The most consequential recent transaction was the combination of Coherent and II-VI Incorporated, completed in 2022. II-VI brought substantial capabilities in optical communications, engineered materials, compound semiconductors, and photonic components. The enlarged company retained the Coherent identity and presented itself as a global provider of materials, networking, and laser technologies. The combination created a broader portfolio and a larger international operating platform, while also increasing the company’s exposure to communications infrastructure, electronics, industrial production, and advanced manufacturing. Coherent is headquartered in Saxonburg, Pennsylvania, and serves customers internationally. Its present business is best understood as a diversified photonics platform rather than a narrowly defined laser brand. The company supplies components, materials, sources, subsystems, and systems that are incorporated into customer products and industrial processes. Its stated application areas include industrial, communications, electronics, and instrumentation markets. The company remains publicly traded on Nasdaq under the ticker COHR. The corporate name associated with the post-2022 organization is Coherent Corp., while Coherent continues to function as the principal commercial brand. Its current strategic identity centers on combining materials science, optical engineering, semiconductor technology, and laser expertise to support the production and transmission of light in demanding technical environments.

• 2024

  New chief executive appointed

  [3]Coherent leadershipcoherent.com

  Jim Breuer became chief executive officer, succeeding Vincent D. Mattera Jr.

• 2022

  Combination with II-VI completed

  [4]Coherent company newscoherent.com

  Coherent completed its combination with II-VI Incorporated, expanding its activities in optical communications, engineered materials, compound semiconductors, and photonics components.

• 1966

  Company established

  [2]Coherent company informationcoherent.com

  Coherent was founded in the United States as a laser and photonics technology company.

A vertically integrated photonics technology supplier combining materials, optical components, lasers, subsystems, and application-focused systems for industrial and advanced-technology markets.

• Industrial photonics

  Industrial lasers and systems

  Laser sources and systems designed for manufacturing processes such as cutting, welding, marking, drilling, micromachining, and other forms of precision materials processing. These products are supplied for integration into industrial equipment and production lines across multiple manufacturing sectors.

• Communications photonics

  Optical communications products

  Optical components, modules, and subsystems used in communications networks and data-transmission equipment. The portfolio reflects the capabilities added and broadened through the company’s combination with II-VI and supports network infrastructure requiring high-speed optical transmission.

• Photonics materials

  Materials and compound-semiconductor products

  Engineered optical materials and compound-semiconductor technologies used in lasers, detectors, optical components, and communications equipment. These products provide upstream capabilities within the photonics supply chain and support the manufacture of specialized electronic and optical devices.

• Scientific photonics

  Scientific and instrumentation lasers

  Laser sources and related optical technologies for scientific research, measurement, spectroscopy, metrology, imaging, and instrumentation. Such products are intended for technically demanding environments in which wavelength, stability, power, pulse characteristics, or beam quality are important.

• 2026

  Veolia sues nine companies over PFAS contamination of Delaware drinking water

  Veolia, an investor-owned drinking water supplier, filed a lawsuit in Delaware Superior Court against nine companies, alleging they contaminated Delaware drinking water sources with toxic PFAS chemicals and failed to prevent the chemicals from entering the waterways Veolia relies on to serve 100,000 New Castle County residents. The lawsuit seeks compensation for a $35 million PFAS treatment system and associated operating costs.

  Source

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• 2022

  Combine with II-VI IncorporatedM&A

  Background

  Coherent sought to broaden its photonics portfolio and international scale by combining with II-VI, whose activities included optical communications, engineered materials, compound semiconductors, and related components.

  Action taken

  The companies completed the combination and operated under the Coherent name, creating a larger publicly traded photonics company.

  Aftermath

  The combined business became more diversified across materials, networking, lasers, electronics, industrial applications, and instrumentation.

  Source

• 2026.08.12

  Reported2026.08.12

  Veolia sues nine companies over PFAS contamination of Delaware drinking water[6]Veolia sues nine companies over PFAS contamination of Delaware drinking waterwhyy.org

  Veolia, an investor-owned drinking water supplier, filed a lawsuit in Delaware Superior Court against nine companies, alleging they contaminated Delaware drinking water sources with toxic PFAS chemicals and failed to prevent the chemicals from entering the waterways Veolia relies on to serve 100,000 New Castle County residents. The lawsuit seeks compensation for a $35 million PFAS treatment system and associated operating costs.

• 2021.03.24

  Coherent terminates planned merger with Lumentum[7]Coherent终止与Lumentum的拟议合并optics.org

  Coherent terminated its planned merger with Lumentum, clearing the way for Coherent to pursue a merger with II-VI. Lumentum said Coherent had given notice of the termination.

• 2021.01.19

  Reported2021.01.20

  Lumentum announces acquisition of Coherent[8]Lumentum宣布收购Coherentfinance.sina.com.cn

  Lumentum and Coherent announced an agreement for Lumentum to acquire Coherent in a cash-and-stock transaction valued at $5.7 billion. The agreement had received unanimous approval from both companies’ boards; the deal was expected to close in the second half of 2021.

Read more

1. 1Coherent official company websitecoherent.com
2. 2Coherent company informationcoherent.com
3. 3Coherent leadershipcoherent.com
4. 4Coherent company newscoherent.com
5. 5Coherent Corp. encyclopedia referenceen.wikipedia.org
6. 6Veolia sues nine companies over PFAS contamination of Delaware drinking waterwhyy.org
7. 7Coherent终止与Lumentum的拟议合并optics.org
8. 8Lumentum宣布收购Coherentfinance.sina.com.cn
9. 9《國際產業》收購Coherent勢在必得 Lumentum提價至69億美元 - 財經chinatimes.com