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Barr Group's fiber optics and optical expert witnesses assist attorneys in litigation. Our experts in optics have hands-on experience designing everything from LED lighting to fiber-optic illumination, as well as non-imaging optics like telescopes and microscopes and have testified in high-profile bench and jury trials.

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Optical Systems

The design and use of optical equipment is critical across a wide range of industries, including  in telecommunications and medical devices. Fiber optic communications is obviously a big and important area of this technology. But our team of expert optics designers and photonics specialists has expertise in a wide range of related technologies including::

  • Fiber optic networks and equipments
  • LEDs and fiber-optic lighting systems
  • Waveguide and optical fiber design
  • Fiber optic cables, connectors, and termination
  • Optical sensors and detectors
  • Optical imaging systems, including for cameras
  • Cutting and machining lasers for manufacturing
  • Photonic signal processing
  • Photonic Integrated Circuits (PICs)
  • Holography and holographic storage
  • Optical storage, including CDs and DVDs
  • Lasers and optical amplifcation
  • Telescopes and microscopes

Barr Group's experts are familiar with the specialized software platforms used for high-performance optical design, such as OptiSystem, Zemax, and Lumerical.

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Expert Witness Services

Barr Group's optical experts support plaintiffs and defendants in litigation in U.S. District Courts and State Courts, at the International Trade Commission (ITC), and before the Patent Trial and Appeal Board (PTAB) as well as in arbitration. Our services include:

  • Technical assistance with drafting of discovery requests
  • Optical system design reviews and analysis
  • Optical system performance testing
  • Prior art review for patent invalidity
  • Reverse engineering
  • Expert reports, declarations, and witness statements
  • Testimony at deposition, oral hearings, and trials

Our experience with optical equipment design is extensive and includes expert testimony in patent and trade secrets litigation.

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The following is a representative subset of Barr Group's experts who have experience designing and/or testifying about these technologies:

Optical Equipment Expert Witness List

The following is a representative subset of Barr Group's experts who have experience designing and/or testifying about these technologies:

Computer software and electronics consultant with three decades of extensive experience with storage technologies and filesystems, including Flash memory.
Professor of electrical engineering with experience in power electronics, including low power circuits, solar cells, wireless power transfer, and high voltage systems.
Electrical engineer with broad industry experience in development and manufacturing of optical and magnetic storage products including RAID disks and SCSI interfaces.
MIT-educated electrical engineer, computer scientist, and physicist with two decades of expertise including in network processors, TCP/IP, fiber-optic networks, and VoIP.
Consultant in digital communications with industry-leading expertise in telecom regulation, including the way telephony networks, providers, and users interact.
White hat hacker specializing in penetration testing and reverse engineering and expert in the design of secure networks and IoT devices.
Consultant with over two decades of experience in semiconductor design and testing, including foundry process evaluation and selection.
Professor with decades of experience in technologies from communication protocols to smart transportation systems for connected and autonomous vehicles.
USAF researcher in image processing and GPS-denied navigation with decades of experience in control systems including for aerial drones and UAVs.
PhD electrical engineer and data communications expert with three decades of industry and research experience in DSP, video and image encoding, and data compression.