Interferometers
Combine waves to reveal their properties by measuring the pattern of interference.
See Also: Beam Splitters
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Product
Plane Mirror Converter
10722A
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The Keysight 10722A plane mirror converter modifies the use of the 10702A linear interferometer. With an additional 10703A reflector, the 10722A converts the 10702A into a 10706A plane mirror interferometer. With an additional 10723A high-stability adapter, the 10722A converts the 10702A into an 10706B high-stability plane mirror interferometer.
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Product
Universal (ID/OD) Measuring Instruments
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Pratt & Whitney Measurement Systems, Inc.
The most popular ID/OD instrument in the world. Automatic probe movement with a push of a button. High accuracy is maintained by its laser interferometer, zero Abbe offset design, and large measuring table with swivel, center, tilt, and elevation control knobs.
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Product
Interferometer
VFI-1200
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The VFI is the interferometer of choice for industry leading photonics companies around the world. The VFI-1200 is an interferometric inspection system specifically designed for checking the surface quality and flatness of your cleaved or polished fibers. The VFI offers the perfect combination of a superb image quality with ease of use, and the reliability and robustness that our customers have come to expect from Arden products, resulting in fiber end face measurements that you can trust.
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Product
HES Spectrometers
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ISI’s standard HES spectrometer offers a 100-fold increase in throughput over conventional systems currently available. This increased throughput can lead to a superior signal-to-noise ratio (SNR) for a given observation over a Czerny Turner instrument. The HES spectrometer contains no moving parts and yet offers the advantages of a Michelson Interferometer with the spectral properties of a traditional diffraction grating-based device, such as a Czerny Turner spectrometer.
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Product
Linear Interferometer
10766A
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The Keysight 10766A Linear Interferometer is used for general purpose single axis measurements and can be employed when the interferometer is the moving component, instead of the measurement reflector. It has a rugged, thermally stable stainless steel housing.
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Product
Laser Head
5517CL
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The Keysight 5517CL is used primarily in VME and PC based laser interferometer systems where the velocity of motion is faster, such as semiconductor lithography and flat panel applications. Option 009 allows a larger angular range of measurement by providing a 9 mm beam diameter for use with three-axis interferometers. Please contact Keysight for custom requirements.
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Product
Inside Dimension (ID) Measuring Instruments
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Pratt & Whitney Measurement Systems, Inc.
High accuracy is maintained by its laser interferometer, zero Abbe offset design, and large measuring table with swivel, center, tilt, and elevation control knobs.
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Product
Differential Interferometer
10715A
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The Keysight 10715A Differential Interferometer performs differential measurements between the supplied reference mirror and a measurement plane mirror. It provides exceptional long term stability. The 10715A minimizes dead path, and, because the entire optical path through the interferometer is common mode, it eliminates thermal drift in measurements. The resolution of the measurement is twice that of a linear or single-beam interferometer.
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Product
Receiver
10780C
Receiver
The Keysight 10780C is a highly-sensitive, lowest-cost Keysight receiver used with laser interferometer positioning systems. One receiver is used per measurement axis (including wavelength tracker). Configured with Keysight electronics, laser heads, cables and optics, the Keysight 10780C receiver allows you tailor a precise positioning system for your exact application requirements.
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Product
Regeneration Station
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This equipment is a stand-alone device that enables to coherently regenerate an optical signal allowing long-haul dissemination of an ultra-stable optical frequency reference. Its architecture is based on the heterodyne phase-locking of a narrow spectral width laser diode on the reference signal. The station is equipped with low phase noise optical interferometer that perform a thorough characterization of the phase noise accumulated by the incoming signal, and a compensation system of this phase noise.
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Product
Fixed Magnification Interferometer
FiBO 250
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FiBO 250 offers a solid and economical solution to automated fiber testing by bringing together full 2D visual inspection capabilities and true phase-shifting interferometry to achieve exceptionally accurate measurements. A fixed focal length 10x magnifier ensures maximum system stability and a very high level of repeatability.
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Product
Interferometers and Reflectometers for Plasma Diagnostics up to 170 GHz
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Elva-1 supplies different solutions for measurement density and temperature profiles of plasma. Our systems are installed practically on all TOKAMAKs over the World.
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Product
Laser Head
5517DL
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The Keysight 5517DL is used primarily in VME and PC based laser interferometer systems where the velocity of motion is faster, such as semiconductor lithography and flat panel applications. Please contact Keysight for custom requirements.
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Product
Displacement Measuring Interferometers (DMI)
ZMI Series
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This unit measures retroreflector targets for tracking objects moving primarily in one linear dimension or rotating about a fixed point. ZYGO offers a standard and compact size linear interferometer to accommodate different system space constraints.
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Product
Laser Head
5517C
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The Keysight 5517C is used primarily in VME and PC based laser interferometer systems where the velocity of motion is faster, such as semiconductor lithography and flat panel applications. Option 009 allows a larger angular range of measurement by providing a 9 mm beam diameter for use with three-axis interferometers. Please contact Keysight for custom requirements.
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Product
10G DPSK Demodulator
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Optoplex’s Optical DPSK Demodulator, also known as Delay Line Interferometer (DLI), converts phase modulation to amplitude modulation over the entire C+L band in support of data transmission rates of 2.5,10 or 40 Gb/s. The DPSK demodulator is designed for phase modulated optical communication systemsutilized in commercial, defense and space exploration markets. The device plays a key role in improvingsignal quality and performance to meet the expanding demand for higher data rates and more complextransmission formats within current and next generation systems without major capital expenditure.Optoplex’s DPSK Demodulator is based on a patented free-space optical design, which is compact, athermal and polarization-independent. The measured frequency drift over temperature is only ~0.02 GHz/°C for our standard passive device. Further, this DPSK Demodulator exhibits a total polarization-dependent phase shift of less than 2 degrees over the entire operating temperature range with a high extinction ratio. Optoplex’s DPSK Demodulators can be configured to be fully tunable, colorless tunable or purely passive. Dual-Rate DPSK Demodulator is also available.
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Product
2.5G DPSK Demodulator
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Optoplex’s Optical DPSK Demodulator, also known as Delay Line Interferometer (DLI), converts phase modulation to amplitude modulation over the entire C+L band in support of data transmission rates of 2.5, 10 or 40 Gb/s. The DPSK demodulator is designed for phase modulated optical communication systems utilized in commercial, defense and space exploration markets. The device plays a key role in improving signal quality and performance to meet the expanding demand for higher data rates and more complex transmission formats within current and next generation systems without major capital expenditure. Optoplex’s DPSK Demodulator is based on a patented free-space optical design, which is compact, athermal and polarization-independent. Themeasured frequency drift over temperature is only ~0.02 GHz/°C for our standard passive device. Further, this DPSK Demodulator exhibits a total polarizationdependent phase shift of less than 2 degrees over the entire operating temperature range with a high extinction ratio. Optoplex’s DPSK Demodulators can be configured to be fully tunable, colorless tunable or purely passive. Dual-Rate DPSK Demodulator is also available.
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Product
Automated Interferometer with Floating Pastille Technology
DAISI MT FP
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The Daisi MT FP combines the Daisi MT-V3 with the new Floating Pastille fixture technology from DATA-PIXEL (patent pending). This major technological breakthrough for multi-fiber connector fixtures is perfectly suited for highly accurate X/Y endface angle measurements.
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Product
MFI Michelson Fiber Interferometer
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OPTIPHASE , a leading supplier of ultra-high performance interferometric systems, offers Fiber Interferometers for use in precision test and measurement instrumentation as well as fiber sensing systems. These interferometers are driven by our own PZ1 Low-profile Fiber Stretcher with enhanced modulation, through a front panel BNC connector. Michelson and Mach-Zehnder interferometers are available in wavelengths from 1064 to 1550 nm. Each interferometer has a “zero meter” path mismatch which provides flexibility to change the delay length to match varying test applications. The standard length shipped is 50 meters. We also build custom interferometers.
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Product
Angular Optics Kit
55281A
Accessory Kit
The Keysight 55281A Angular Optics Kit adds pitch and yaw measurement capability to the 5530 Laser Calibration System. Ideal for use in precision calibration applications, it includes the 10770A Angular Interferometer and the 10771A Angular Reflector. Together the high-accuracy plane mirror interferometer and the angular reflector measure pitch and yaw motions along each axis that a machine tool or measuring machine travels. Results are displayed directly in arc-seconds or in mm/mm (in/in).
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Product
Portable FTIR Spectrometer
VIR Series
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A range of lightweight and easily transportable FTIR spectrometers. Including a hermetically sealed interferometer with anti-vibration technologies for demanding laboratory and field applications where a laboratory instrument may be unsuitable.
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Product
Dynamic Interferometry
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4D dynamic interferometers use patented, instantaneous phase sensors to measure the shape of surfaces with extreme accuracy, despite vibration and environmental noise.
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Product
Plane Mirror Interferometer
10706A
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The Keysight 10706A Plane Mirror Interferometer is a dual pass interferometer used for multiple axis applications such as X-Y stages where the measurement mirror may move perpendicular to the measurement axis. The unique contribution of the 10706A is its tolerance of angular misalignment of the plane mirror reflector. The 10706A can accept a range of measurement mirror angular alignment changes.
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Product
2x2 Interferometric Couplers
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Feasa manufactures a series of couplers, which are optimised for use in fiber interferometers. The couplers have a highly reflective end on one or more output ports and can be configures as 1x2 or 2x2.
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Product
Angular Reflector
10771A
Accessory Kit
The Keysight 10771A Angular Reflector, used in the Keysight 5530Laser Calibration System, is ideal for precision calibration applications. Paired with the 10770A Angular Interferometer, it is used to measure pitch and yaw motions along each axis that a machine tool or measuring machine travels. The system can help quickly locate and evaluate unwanted angular motion.
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Product
Selectable Magnification Interferometer
FiBO 300
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FiBO 300 is a versatile, phase-shifting Michelson interferometer for testing telecom fiber optic connectors and inspecting the cleave angle and quality of bare optical fiber. The built-in turret enables quick and easy switching between calibrated objectives for optimum magnification and field of view.
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Product
Optical Wavelength Meters
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Optical wavelength meter that uses a He-Ne laser as reference wavelength and employs the Michelson interferometer method, providing high-accuracy measurement. It can measure emission center frequencies of LDs for DWDM with high resolution and accuracy.The 8471 even provides a high sampling rate of 10 times per second, and is suitable for oscillation wavelength adjustment. In addition, its deviation display function allows wavelength variation to be measured with high resolution and accuracy.
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Product
Fiber End Face Interferometer
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Thorlabs' GL16 End Face Interferometer measures and images the end face geometry of single- and multi-fiber connectors. A non-contact technique called scanning white-light interferometry (SWLI) provides high accuracy, repeatability, and reliability for fiber connector testing, particularly for pass/fail testing using IEC or Telcordia requirements. The system can be controlled locally through the touchscreen display or remotely through a browser-based application (see Software tab for details), allowing it to be easily integrated on the production floor.
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Product
Three Axis Interferometer
10736A
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The Keysight 10736A Three Axis Interferometer is used in multiple axis applications where linear and angular control of the stage is required. It combines in a single package the functionality of an optical bench with multiple beam benders, beam splitters, and three interferometers. The interferometers split an incoming laser beam into three beams to measure linear distance, pitch and yaw, or linear distance, roll and yaw. Three linear measurements provide the basis for calculating two angular measurements. The inherent beam parallelism ensures that there is essentially no cosine error between the three measurements and also ensures angle accuracy for pitch and yaw measurements. Other characteristics include:
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Product
Laser Interferometers
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ZYGO laser interferometers support and enable the most demanding metrology applications in industries from semiconductor and lithography to space-borne imaging systems, cutting-edge consumer electronics, defense-related IR and thermal imaging systems and ophthalmics.





























