Interferometers
Combine waves to reveal their properties by measuring the pattern of interference.
See Also: Beam Splitters
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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.
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Product
Fiber Interferometers
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Wuhan Sunma Technology Co., Ltd.
SunmaFiber Interferometer is an automatic, non contact fiber endface interferometer for single fiber connector developed by SunmaFiber. It is designed to measure the geometry parameters of single fiber connector end-face. Equipped with auto focus and auto centering functions, SUNMA INTERFEROMETER is very accurate and stable, it can also test bare fiber and bare ferrule. It is very helpful in fiber connector manufacturing to increase the quality of the connectors.
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Laser Interferometers & Calibration Systems
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Keysight Technologies is a world leader in the design and manufacture of laser interferometry systems, advanced electronic measurement systems, high-precision optical components, complex monolithic optics (CMOs), and opto-electronic systems design for the most demanding metrology applications. Keysight systems offer high precision in a wide dynamic range, the ability to simultaneously measure a position with multiple degrees of freedom, and the highest accuracy available in both air and vacuum systems.
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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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Interferometers
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An instrument in which the interference of two beams of light is employed to make precise measurements.
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Product
Interferometers
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Sumix interferometers are designed for inspection of fiber optic ferrules, patch cords, pigtails and bare fiber in the process of polishing and assembly. They enable you to check polishing quality, test connector end face geometry per IEC, Telcordia or your own custom standards and generate reports to supply with your patch cords.
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Multiple Axis Interferometers
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Interferometers that measure two and three axes can increase accuracy, reduce alignment time and save space in high performance multi-axis systems.
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Interferometers
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CAES Interferometers are ruggedized subassemblies with optimized SwaP-C and can be integrated into virtually any asset, be it manned or unmanned aircraft, surface vessels, ground vehicles, or missiles.
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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
FiBO Interferometers
FiBO 200
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Robust solid state design with manual focusing function is ideal for field use or as a cost-effective solution on the production floor.
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Product
Single Beam Interferometer
10705A
Linear Interferometer
The Keysight 10705A Single Beam Interferometer, the smallest linear interferometer, is designed for making low mass or limited space single axis measurements. It is ideal for use in disk drive and other confined space applications. The single beam interferometer is called that because the outgoing and returning beams are superimposed on each other, giving the appearance of only one beam traveling between the interferometer and the retroreflector.
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Product
Two Axis Differential Interferometer
10721A
Differential Interferometer
The Keysight 10721A Two Axis Differential Interferometer, when used in multiple axis applications, simultaneously makes two differential measurements linear and angular (yaw) displacement. Both measurements reference external mirror mounted to an object such as a column or inspection tool. The 10721A provides high immunity to unwanted interferometer displacement, such as thermal expansion. It is a modular, compact design with monolithic optics for maximized mechanical stability. Use of a small 3 mm beam helps decrease Abb offset error. The 10721A is similar to the 10719A Single Axis Differential Interferometer, except that it provides an additional measurement axis.
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Product
Interferometer
VFI-2000
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The VFI is the interferometer of choice for industry leading photonics companies around the world. The VFI-2000 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
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
Retroreflector
10703A
Retroreflector
The Keysight 10703A retroreflector (cube corner) is a basic measurement reflector for linear measurements. It is paired with the Keysight 10702A (or Keysight 10702A Opt. 001) linear interferometer, enabling general-purpose, single-axis measurements. If mass is critical, the Keysight 10703A is available without housing as the 10713B.
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Product
Laser Head
5517B
Laser Head
The Keysight 5517B is used primarily in VME and PC based laser interferometer systems where the velocity of motion is slower, such as machine tool applications. Please contact Keysight for custom requirements.
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Product
PC System Electronics
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Keysight PC electronics provide state of the art laser interferometer performance in the convenient PC backplane format. Axis, servo-axis and compensation boards are available.
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Plane Mirror Interferometer
10706A
Differential Interferometer
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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Fizeau Interferometers
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Fizeau interferometers offer an unmatched combination of performance, quality and value in optical metrology. They produce accurate, repeatable interferometric measurements of surface shape, radius of curvature and transmitted wavefront quality.
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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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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
40Gb/s DQPSK Receiver
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The integrated DQPSK receiver incorporates an optical phase demodulator (delay-line interferometer or DLI) with 2 pairs of balanced photo-diodes and 2 linear TIAs into a single butterfly package. Compared with the currently available discrete solution in which a separate DLI and a separate receiver are used, the integrated DQPSK receiver eliminates labor intensive fiber routing and coupling (between the DLI and the balanced receiver) as well as the skew control. Moreover, the integrated DQPSK receiver offers a smaller footprint suitable for today’s demanding high speed transponder applications.
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Interferometric Laser Encoders
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The RLE system is a unique, advanced homodyne laser interferometer system specifically designed for position feedback applications.
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Precision Optics and Assemblies
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For more than 35 years, Keysight has been designing and fabricating leading-edge optics for use in our laser interferometer systems. You can take advantage of this engineering, component fabrication, and assembly expertise and our state-of-the-art optics manufacturing facility in Santa Clara, California to deliver cutting-edge optical solutions to your customers:
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Product
Digital Automated Interferometer for Surface Inspection
DAISI
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DAISI (Digital Automated Interferometer for Surface Inspection) achieves the high workability and repeatability with the features such as auto-focus function, auto-calibration function and auto connector fixing system.
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Fibre Optic Laser Encoders
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The RLE system is a unique, advanced homodyne laser interferometer system specifically designed for position feedback applications.
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Product
1-Inch Cube Corner
10713B
Retroreflector
The Keysight 10713B cube corner reflector can be used as the measurement reflector for linear measurements. It may be paired with either the 10702A Linear Interferometer or the 10705A Single-Beam Interferometer. Supplied without housing, the 10713B is suited to applications where mass is extremely critical.
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Product
Laser Head
5517DL
Laser Head
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.





























