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Optical Fabrication and Testing

10 June 2019 – 12 June 2019 OSA, Washington, District of Columbia United States

The 2019 Optical Fabrication and Testing Topical Meeting (OF&T) will emphasize new ideas, concepts and emerging applications in optics manufacturing and metrology. Hot topics will include the following: fabrication of optics by lasers, additive manufacturing of optical components, molding of micro-optics, deterministic manufacturing of aspheric/conformal/freeform optics, advanced metrology systems and direct slope/curvature measurement, fabrication of optics from novel materials, efficient manufacturing and testing of large optics, new CNC machining processes and advances in finishing science. Papers that describe manufacturing chains from the generation of complex shapes to the fine finishing of surfaces, giving details of the process science, will be especially welcomed.


1. Optical Materials

  • New materials for new applications (composites, plastics, crystals, glasses, lightweight materials, ceramics, carbides, chalcogenides, UV optical materials, additive manufacturing)
  • Material properties and the response to fabrication processes

2. Grinding and Polishing

  • Grinding, precision grinding, diamond turning and milling, ultrasound assisted machining, vibration assisted polishing, processing of edges
  • New ideas in traditional (pitch) polishing, magnetic field-assisted finishing, ion beam figuring and polishing, fluid-jet polishing, novel finishing processes
  • Abrasives, novel abrasive formulations, abrasive-impregnated pads

3. Figuring and Finishing Science (Laser Processing, etc.)

  • Fabrication or polishing of optics with lasers or concentrated light
  • Tailored slurries through the adjustment of pH and zeta potential
  • Deterministic figuring techniques, mid-to-high spatial frequency error control, and various smoothing approaches during computer controlled optical surfacing

4. Optical Testing and Advanced Metrology Systems

  • Testing for sub-surface damage, homogeneity, form, finish and scratch/dig
  • Measurement, interpretation, and applications of power spectral density
  • New ideas in interferometry, direct slope/curvature measurement
  • Testing aspheric surfaces with and without null-optics, reconfigurable nulls
  • Computer-generated holograms and spatial light modulators for testing
  • Absolute tests for flats, spheres and aspheres
  • New concepts in profilometry: optical and mechanical probes
  • Testing of very small optics
  • White light interferometry, fringe projection metrology, deflectometry
  • Testing in adverse environments: vibration, turbulence, vacuum, and space
  • In-process metrology
  • Testing of freeform surfaces

5. Assembly, Alignment, Contamination Control, Cleaning, Packaging

  • Adhesives and cements for elevated, ambient and low temperature
  • Stable joining of optical surfaces by optical contacting, direct bonding or laser welding
  • Alignment of optical components and systems containing aspheric elements
  • Alignment of multi-element mirrors
  • Measurement and control of deformation and stress birefringence in mounting
  • Cleaning optics, clean rooms and contamination control
  • Handling and packaging of precision optics

6. Process Engineering

  • Glass and plastic (micro) molding to high surface accuracy and low surface roughness
  • Cost effective optics manufacturing processes
  • Engineering gradient index optics
  • Cost effective fabrication of aspheric surfaces
  • Automation of the manufacturing chain in optics fabrication
  • Good and bad experiences from the shop floor

7. Fabricating Next Generation Optical Systems (Freeform Optics, etc.)

  • Photolithography optics
  • Adaptive optics
  • Integrated optics
  • Freeform optical systems and industrial manufacturing

8. Large Optics

  • Fabrication and testing of large optics for EUV and x-ray applications
  • Large optics for earth-based and space-based astronomy

9. Nanostructures and Films

  • Characterization of coatings for advanced laser optics
  • Nanostructures on optical surfaces

10. Education and Training in Optics Metrology and Finishing Science

  • Uncertainty and traceability
  • Interpretation of metrics for optical surface characterization



  • Amy Newbury, DigitalGlobe, Inc.United States 
    Building A Better World: A Real World Application of Optical Technology Plenary
  • Thomas Arnold, Leibniz Inst of Surface ModificationGermany 
    Advancements in Ion Beam Figuring
  • Brian Bauman, Lawrence Livermore National LaboratoryUnited States 
    Design for Manufacturing: Tolerancing and Optimization
  • Remi Bourgois, SAGEMFrance 
    ELT Optics Polishing
  • James Burge, Arizona Optical SystemsUnited States 
    Testing Thirty Mirror Telescope (TMT) Primary Segments
  • Nicholas Devaney, National University of Ireland GalwayIreland 
    Active Optics for Space Telescopes
  • Rebecca Dylla-Spears, Lawrence Livermore National LaboratoryUnited States 
    3d Printed Glass Optics with Tailored Composition
  • Eric Herman, University of ArizonaUnited States 
    Optical Standards: MIL to ANSI to ISO
  • Ruth Houbertz, Multiphoton Optics GmbHGermany 
    Additive Manufacturing of Micro-optics
  • Sidney Huey, Applied Materials, Inc.United States 
    Introduction of Chemical Mechanical Planarization (CMP) for Semiconductor Device Manufacturing
  • Tony Hull, University of New MexicoUnited States 
    Optical Finishing and Light-weighting of Large Optics
  • Sven Kiontke, Asphericon GmbHGermany 
    Analyzing and Minimizing Mid-spatial Frequency Errors
  • Andrew Shobe, Kyocera International, Inc.United States 
    Cordierite Design, Manufacturing and Performance
  • Barbara Stadlober, Joanneum ResearchAustria 
    Roll-to-roll Manufacturing of Optics
  • Bruce Truax, Zygo CorporationUnited States 
    Realistic Optical Drawing Specifications from a Metrology Point of View
  • Edward Winrow, Sandia National Laboratories AlbuquerqueUnited States 
    Design and Build of a Zoom Telescope Utilizing Additive Manufacturing



  • Jessica DeGroote Nelson, Optimax Systems Inc, United States , Chair
  • Matthew Jenkins, Raytheon Company, United States , Chair
  • Dae Wook Kim, University of Arizona, United States , Chair
  • Dave Aikens, Savvy Optics Corp, United States
  • Jens Bauer, Leibniz Institute of Surface Engineering, Germany
  • Paul Dewa, Corning Tropel Corporation, United States
  • Rebecca Dylla-Spears, Lawrence Livermore National Laboratory, United States
  • Chris Evans, Univ of North Carolina at Charlotte, United States
  • Oliver Faehnle, FISBA AG, Switzerland
  • Ralf Leutz, Wielandts UPMT, Belgium
  • Ruth Mackey, mBryonics Ltd, Ireland
  • James Mooney, Harris, United States
  • Frank Nuernberg, Heraeus Quarzglas GmbH, Germany
  • Jannick Rolland, University of Rochester, United States
  • Tayyab Suratwala, Lawrence Livermore National Laboratory, United States
  • Hideo Takino, Chiba Institute of Technology, Japan
  • John Tamkin, Wavefront Technology Inc, United States
  • Chunyu Zhao, Arizona Optical Metrology LLC, United States


Plenary Session

Amy Newbury

DigitalGlobe, Inc., USA

Building A Better World: A Real World Application of Optical Technology

Through DigitalGlobe’s maps and analytics, satellite imagery is used for an extensive set of applications. This paper shows how at Maxar Technologies, we use precision optics to fulfill our mission to “Build a Better World.”

Amy Newbury is a Director and Aerospace Fellow at DigitalGlobe, a Maxar Technologies company. She graduated with a PhD in Physics from Princeton University after which she was a National Research Council Post-Doctoral fellow at the National Institutes of Standards and Technology. Since then, she has worked in the aerospace field, first at MIT Lincoln Laboratory, then as a Staff Consultant at Ball Aerospace. She has been at DigitalGlobe for the past 8 years. While at Ball Aerospace, she served as Lead Engineer for several programs including a NOAA sounder instrument study and for the LANDSAT Operational Land Imager instrument. At DigitalGlobe, she worked extensively on the suite of imagers on the Worldview-3 satellite. She is currently the Chief Instrument Engineer for the Legion constellation slated to launch in the 2021 timeframe, and continuesto explore future satellite missions aligned with Maxar's purpose to “Build a better world”.

Pablo Benítez

Universidad Politecnica de Madrid, Spain

Folded Freeform Optics for Virtual Reality

Future virtual reality will require optics enabling much slimmer headsets, such as folded (catadioptric) architectures that will be reviewed here, from the classical pancake lens to the latest freeform multichannel Thineyes® solutions proposed by Limbak.

Pablo Benitez is professor at the Technical University of Madrid, Spain, where he leads the Optical Engineering group. In the last 20 years he has pioneered research in design of aspheric and freeform optics for nonimaging and imaging applications, specifically he is coinventor of the SMS optical design method. More recently, Pablo Benitez has cofounded and is CTO of Limbak, which is an IP company developing advanced freeform optics for the forthcoming VR and AR glasses.


Special Events

Professional Development

Moving Across Fields: From Academia to Industry and Back Again 
Tuesday, 11 June; 12:30-13:30

Navigating the change from academia to industry or from industry to academia is not always a straightforward path. Alexis Vogt, PhD, Chair and Associate Professor of Optics at Monroe Community College, will share her experiences moving between the two fields. 

Hosted by OSA Career Lab


The Future of Additive Manufacturing Technologies for Optical Applications
Tuesday, 11 June; 16:00-18:00

What role will additive manufacturing play in optical system design, material choices, and optical component fabrication?  Come join a panel of additive manufacturing technology leaders for an interactive discussion about what additive manufacturing can do for the optics community, industry, and academia.

Rebecca Dylla-Spears, Lawrence Livermore National Laboratory, USA
Joseph Howard, NASA Goddard, USA
Matthew Jenkins, Raytheon, USA
Michael Sweeney, General Dynamics, USA
Daniel Werdehausen, Carl Zeiss AG, Germany


Image for keeping the session alive