Characterisation, Measurement & Analysis
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Dynamic Capability comes to (nearly) all new Zygo Verifire Interferometers

DynaPhase® Dynamic Acquisition for Extreme Environments
Confidence in metrology, no matter the conditions

Fizeau Interferometry has become a trusted standard for precise metrology of optical components and systems. Traditionally, these instruments were required to be installed in lab environments, where conditions were carefully controlled, to ensure high precision measurements were not compromised. However, today a growing number of applications demand easy, cost-effective solutions for the use of interferometry in environments where metrology has been difficult or impossible in the past.

Challenge
Often, optical systems must be tested in locations that simulate their end-use environment. These environments can present challenges due to factors like large vibration and air turbulence, which can negatively affect or prevent the ability to acquire reliable optical measurements. Many of these challenges are addressed with less than optimal solutions, often suffering from drawbacks and issues related to usability, speed, reliability and precision.

Solution
ZYGO's patented DynaPhase® data acquisition technology offers many differentiated benefits, without the limitations associated with alternative methods. Key attributes of DynaPhase include:

  • Highest vibration tolerance in a Fizeau interferometer, enabled by the ZYGO-manufactured high-power laser* and fast acquisition speeds
  • Patented in-situ calibration enables the highest precision, lowest measurement uncertainty measurements, and excellent correlation to temporal phase shifting interferometry (PSI)
  • Simple setup and calibration compared to alternative approaches
  • Cost-effective solution; available on nearly all ZYGO laser interferometers

Comparison of Measurement Techniques Using an Identical Measurement Cavity


DynaPhase offers the versatility and performance to address a wide range of challenging optical testing environments and applications, including:

  • Cryogenic and vacuum chamber testing
  • Telescope components and complex optical systems
  • Large tower, workstations and complex or unstable test stands

Features
DynaPhase is available on nearly all ZYGO laser interferometers. Features vary by model and enable users the flexibility to use capabilities that enhance efficiency in Production Mode, enable fast system alignment with LivePhase, or reveal temporal changes in data with Movie Mode.


Summary
Get the most from your metrology investment with the unique capabilities and unmatched versatility of DynaPhase, now available on the entire interferometer line from ZYGO.
Complete range of vibration tolerant metrology - check out ZYGO's patented QPSI vibration tolerant temporal phase shifting data acquisition enables metrology in the presence of common shop floor vibrations without the need for calibration.

DynaPhase is inherent in the DynaFiz interferometer - and available as an optional extra software module on the new Verifire (1200 x 1200 pixel camera), Verifire HD and HDx systems. This means you can have DynaPhase capability on the entry level Verifire interferometer, which is pretty well specified to start with as it includes QPSI technology also.

Click here to read further information on QPSI™ Technology Shrugs Off Vibration from Common Sources.

To speak with a Sales & Applications Engineer please call 01582 764334 or click here to email.