Worldwide supplier of advance stock and custom optics and electro-optics

  • Optics, custom precision and extreme precision
  • Electro-optical assemblies

Precision optics including extreme precision aspheres and freeform, meter-class flats and windows in common and exotic materials. Full electro-mechanical-optical design/prototype and manufacturing capabilities for medical, defense, military, ISR, semiconductor and industrial technology research.


Zygo uses innovative and proprietary manufacturing technologies to create high-precision optical components through CNC glass machining and light-weighting, weighting, MRF polishing, and thin film coating.

ZYGO offers integrated system design, prototyping, and volume assembly in product development phases like engineering and product development, electro-optical assembly, opto-mechanical assembly, and turnkey system manufacturing.

Zygo’s Optical Systems Division designs and manufactures high precision optical components and electro-optical subsystems for industrial OEM applications in their certified ISO 9001:2000 and ISO 13485:2003 manufacturing and assembly facilities.

The Zygo Optical Systems Division’s Tier 1 optical fabrication facility utilizes their own proprietary manufacturing and metrology techniques to design and manufacture optical components and optical assemblies for use in semiconductor applications.

Zygo offers design and manufacturing services for a wide variety of products used in the defense and aerospace marketplaces, and are prepared to help at any point in the product’s lifecycle – from concept through volume production.

Zygo’s Electro-Group provides design, manufacturing, and assembly engineering services for electro-optical and opto-mechanical assemblies used in medical and life science applications.

Zygo’s extreme precision optics group provides services involving aspheric surface fabrication, computer controlled optical surfacing, ion beam figuring (IBF), precision glass machining, abrasive machining, and precision glass assembly.


ZYGO’s Guardian™ Industrial Enclosure is designed to isolate the metrology core from the surrounding environment, even under the more challenging environmental conditions.

The ZeGage™ Pro and ZeGage™ Pro HR are scanning white light interferometers that provide 3D optical surface profiling for the measurement of precision surfaces that require non-contact metrology. The base ZeGage™ Pro model delivers surface mapping at the nanometer scale, meeting the needs for most industrial surfaces. For smoother samples with a much finer surface finish, the ZeGage™ Pro HR offers more than 20X higher precision with 0.15 nm vertical precision.

Zygo Corporation's NewView 9000 instrument is based on innovative and versatile non-contact optical technologies. Ideal applications include research, precision engineering, quality control, and advanced manufacturing.

Zygo® offers the new Compass™ Micro Lens Process Metrology System with automated, non-contact 3D surface metrology and process control capabilities for discrete micro lenses and molds critical to compact imaging systems and cameras for smart phones and tablets. Two Compass™ models are available for different metrology needs.

Zygo introduces the new Verifire™ HDX laser interferometer system designed for precise 3D metrology and mid-spatial frequency content characterization of extreme performance optical components and systems. The HDX system includes all of the features of the Verifire HD, and adds enhancements such as the best-in-class imaging and resolution for high instrument transfer function (ITF), and superior characterization of mid-spatial frequency content and high-slope surface deviations.

The new ZPS™ System from Zygo Corporation is designed to measure absolute position via ultra-compact optical sensors with a resolution of 0.01 nm and less than 1 nm of non-linearity. The system is typically used for closed-loop feedback systems that require continuous streams of high-precision position data from multiple sensors to maintain precise positioning and alignment.

Precision interferometric metrology faces the challenge of environmental vibrations which can ruin countless precision measurements. Vibration affects measurement results and spatial frequency analysis, making it difficult to make high quality optics without reliable measurements. Zygo’s QPSI technology eliminates this problem with measurements that require no special setup or calibration, and cycle times are typically within a second or two of standard PSI measurements.

ZYGO offers the new APM650™ packaging metrology system designed to provide 2D and 3D measurements of a variety of surface features with sub-nanometer vertical precision and sub-micron lateral precision. This inspection tool is ideal for the automated measurement of panel based PCBs and other advanced packaging applications.

The VerifireTM XL is a large-aperture, downward-viewing interferometer workstation designed for simple metrology of large flat surfaces up to twelve inches in diameter. The VerifireTM XL workstation comes with QPSI acquisition technology that enables true on-axis surface form metrology, without degradation from production floor vibrations.

ZYGO's Verifire and VerifireTM HD Interferometer System is designed to provide transmitted wavefront measurements of optical components and assemblies, and fast, high-resolution measurements of flat or spherical surfaces. The system features a high-speed, 2k x 2k pixel CCD camera and an optimized optical design to reliably measure surface features.  The Mx™ software package provides the ability to calculate mid-spatial frequency content with Power Spectral Density (PSD) and the diffraction simulation tool.

The ZeGage™ Pro and ZeGage™ Pro HR are scanning white light interferometers that provide 3D optical surface profiling for the measurement of precision surfaces that require non-contact metrology. The base ZeGage™ Pro model delivers surface mapping at the nanometer scale, meeting the needs for most industrial surfaces. For smoother samples with a much finer surface finish, the ZeGage™ Pro HR offers more than 20X higher precision with 0.15 nm vertical precision.

The Verifire™ interferometer is a true common-path Fizeau configuration that ensures accurate metrology and “ripple-free” phase measurements in vibration-prone environments. It is well suited for providing accurate surface metrology in both production and quality control environments.

The DynaFiz™ interferometer is a high performance laser interferometer designed to measure the surface form of optics in the presence of turbulent air, or in environments susceptible to extreme vibrations.  The system’s long life, high powered HeNe laser source enables reliable metrology at the camera’s maximum shutter speeds of cavities with low reflectivity.   This proprietary laser and optimized optical system in the DynaFiz system  allows the interferometer to “freeze” the vibration during acquisition so that dynamic metrology can be conducted in environments that are too violent for traditional temporal phase shifting.

The Nexview™ 3D optical profiler microscope stands out amongst competitive products by its ability to measure the topography of virtually any surface, irrespective of roughness, large steps and segments, thin films, steep slopes, with feature heights ranging from < 1 nm up to 20000 µm. It does all this in 3D, without contact, and provides the best qualities of other profiling technologies (stylus, confocal, focus scanning) without their limitations.


Zygo Corporation

Laurel Brook Road

Middlefield, CT 06455-0448


Phone: 1-800-ZYGO-NOW

Fax: 860-347-8372

Contact: Neil Curtis


  • Overcoming Pitfalls When Measuring Thin, Parallel Optics

    Driven by the demand for smaller and smaller consumer products and semiconductor devices, manufacturers require thin planar optics for an array of applications. This puts the responsibility on the material and optics manufacturers to ensure the surface of the glass is flat and free of material deformities which can cause distortion and affect end-use functionality. One advanced solution is Fourier-transform phase-shifting interferometry (FTPSI), which enables easy characterization of the front and back surface, optical thickness variation, and material homogeneity of thin plane parallel glass.

  • Overcoming Metrology Bottlenecks In Additive Manufacturing

    Post-process metrology to validate the integrity of additive manufacturing (AM) builds is vital because many parts produced by AM end up in safety critical applications where end-use functionality is of critical importance. This article reviews developments from ZYGO that allow for hitherto unattainable metrology results.

  • Measuring Surfaces Of Thin Plane-Parallel Optics, The Quick And Easy Way

    Innovative technology enables form measurement of both front and back surfaces of thin optics, simultaneously.

  • Characterizing Cylinder Surfaces At Each Step Of The Thermal Barrier Coating Process

    Automotive engine manufacturers, seeking to maximize efficiency and reduce emissions, have been using innovative materials and methods to reduce engine weight. One method of reducing weight is to replace the heavy cast-iron cylinder liners, used in aluminum cylinder blocks, with lighter-weight materials that are wear resistant and thermally efficient.

  • Precision Lead Angle Metrology

    ZYGO helps major automaker implement precision metrology to measure and quantify lead angle of shaft sealing surfaces to reduce friction and improve efficiency.

  • So Many Parts. So Little Time. The Solution? Smart Setup!

    ZYGO's Smart Setup feature simplifies the process of setting up the sample and instrument for various surfaces and measurement types.

  • OEM 3D Optical Metrology Sensor Solutions

    Do you have a need for precise, high-speed, non-contact surface metrology and inspection? Are you an OEM manufacturer or system integrator looking to partner with a leading company with the experience to ensure your success? ZYGO's 3D Optical profilers are now available as a fully integrable solution with a long history of successful production integrations.

  • How To Measure Thin, Parallel Optics

    Thin, parallel optics are difficult to measure, because both front and back surfaces reflect light. Fourier- Transform Phase Shifting Interferometry can separate those reflections and provide more information than traditional methods. 

  • Process Metrology Helps Ensure Quality Of Smartphone Camera Lenses

    ZYGO's Compass ™ micro lens metrology system helps manufacturers verify lens quality and refine their manufacturing processes.

  • Using Grazing Incidence Interferometry To Measure Large Or Non-Specular Surfaces

    This article informs the reader on grazing incidence interferometry; a relatively simple technique that is useful for large or non-specular metrology.


  • Woodward Testimonial

    The Woodward company is one of the oldest U.S. companies that started out providing water wheel governors and has grown to delivering control systems for reciprocating engines, gas steam engines, aircraft turbines, and aircraft actuation flight control. As these systems become more advanced, they must be regulated at higher standards. Woodward uses ZYGO’s optical metrology technologies to advance their materials inspection.

  • Interferometer Drop Test

    This video is not your typical test. ZYGO is going to drop test their newly packed interferometer. You read that right. See what happens!

  • Zygo At Photonics West 2020

    Celebrating their 50-year anniversary as a company that offers precision optics and optical metrology technologies, ZYGO is excited to present once again at Photonics West 2020. Check out the video to see their featured products, including optical profilers, and learn more about their precision optics manufacturing capabilities.

  • ZYGO Electro-Optics Design And Manufacturing Capabilities

    This video provides an overview of ZYGO Corporation’s electro-optics design and manufacturing capabilities.

  • An Inside Look At ZYGO's Precision Optical Manufacturing Operations

    ZYGO is focused on bringing solutions centered around precision optical components, extreme precision optical components, and optical assembly services. With abilities to work on a build-to-print basis or build a design from scratch through to volume production, ZYGO offers in-process quality assurance to make sure end product meets or exceeds the customer's specifications.