Interferometers
Combine waves to reveal their properties by measuring the pattern of interference.
See Also: Beam Splitters
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Product
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
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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Multi-Axis Laser Interferometer
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The award-winning XD Laser is a multidimensional laser measurement system that simultaneously measures all 21 degrees of freedom including linear, angular, straightness and roll errors for rapid machine tool error assessment. Measurements Include:- Rotational accuracy- Geometric error- Angular error- Flatness- Squareness- Parallelism
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Laser Head
5517EL
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The Keysight 5517EL 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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Linear Measurement Kit
55280A
Mechanical Calibration Kit
The Keysight 55280A Linear Measurement Kit, used with the Keysight 5530 Laser Calibration System, includes the optical equipment needed to measure linear distance (displacement) and velocity. The kit contains a Keysight 10766A Linear Interferometer, two Keysight 10767A Linear Retroreflectors, mounting hardware, andtransit case.
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Portable Connector End Face Geometry Interferometer
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Thorlabs’ Vytran® Connect-Chek® Interferometer automatically and precisely measures radius of curvature, apex offset of polish, and fiber undercut or protrusion on any PC or APC, single-fiber connector. The CC6000 interferometer uses a non-contact tilted-phase-analysis technique for fast, reliable measurements of connector end faces. This compact interferometer has a carrying handle and must be attached to a desktop or laptop computer (not included) with a standard USB 2.0 port for operation. The included CC6000 software, which is used to control the interferometer, can be installed on a computer with the minimum requirements in the table below. Designed for use in both the factory and the field, this interferometer provides crucial quality information needed to assure long-term performance of fiber optic connectors. One CC250P Mount for Ø2.50 mm PC Connectors and one RT250P Reference Tool for calibrating the CC250P mount are included with the CC6000 interferometer; mounts and reference tools that enable measurement of other PC or APC, single-fiber connectors are available separately below. When used with an appropriate mount for APC connectors, the CC6000 interferometer is also capable of measuring the APC angle and key error.
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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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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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Retroreflector
10703A
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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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Long Range Straightness Optics
10775A
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The Keysight 10775A combines a straightness interferometer and reflector to provide measurements over a range of 1 to 30 meters (3 ft to 100 ft). The optics form a highly-accurate optical straightedge that can measure the straightness of travel of machine-tool and measuring-machine coordinate motions with a resolution of 0.1 micrometer (10 microinch).
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Phasecam Twyman-Green Laser Interferometers
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PhaseCam dynamic Twyman-Green laser interferometers provide high resolution measurements despite vibration and air turbulence. Dynamic Interferometry® enables PhaseCam laser interferometers to capture full wavefront measurements in as little as 30 microseconds—5000 times faster than conventional phase shifting interferometers. Compact and lightweight, PhaseCams make reconfiguring test setups simple and easy, without vibration isolation.
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Digital Automated Fiber & Ferrule Interferometer For Single Fiber Connectors
DAFFI SF
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The latest interferometer from Data-Pixel is a cost effective solution for high volumes production, without compromising on accuracy or performance. Based on our extensive interferometer manufacturing experience we designed the DAFFI SF to be robust, fast and accurate in order to meet all manufacturing or laboratory environments. With the Blink software platform, DAFFI is able to measure the end face geometry on single fiber connectors in a very short time. The Daffi interferometer accessories (flange and adapters) are fully compatible with the Daisi range, allowing the user to limit the costs of the 3D geometry measurement units.
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Digital Automated Fiber & Ferrule Interferometer For Multi-Fiber Connectors
DAFFI MT
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Data-Pixel has developed a cost effective interferometer line for high volumes production without compromising accuracy or performance. Based on our extensive interferometer manufacturing experience we designed the DAFFI MT to be robust, fast and accurate in order to meet all manufacturing or laboratory environments.
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Product
Fourier Transform Optical Spectrum Analyzer, 600 - 1700 nm
OSA202C
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Thorlabs' Optical Spectrum Analyzers (OSAs) perform highly accurate spectral measurements. Compatible with fiber-coupled and free-space light sources, these compact benchtop instruments suit a wide variety of applications, such as analyzing the spectrum of a telecom signal, resolving the Fabry-Perot modes of a gain chip, and identifying gas absorption lines. Many commonly available OSAs use grating-based monochromators, which have slow acquisition times due to the need to mechanically scan the grating and average out noise at each wavelength. Thorlabs' OSAs acquire the spectrum via a Fourier transform using a scanning Michelson interferometer in a push/pull configuration. This approach dramatically improves the acquisition time, enables a high-precision wavelength meter mode with 7 significant figures and ±1 part-per-million accuracy, and allows the included software to provide robust statistical analysis of the acquired spectra, as explained in the Design tab.
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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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VME System Electronics
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Keysight VME electronics give the highest performance available in a laser interferometer system. Choose from a variety of axis and compensation boards.
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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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Adjustable Mount
10710B
Mounting Bracket
The Keysight 10710B adjustable optics mount makes alignment faster and easier. It is a convenient accessory for the Keysight 10700A and 10701A beam splitters, the 10705A interferometer, and the 10707A beam bender. It allows for 8 degrees tilt and yaw adjustments.
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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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Product
Angular Interferometer
10770A
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The Keysight 10770A Angular Interferometer is a high accuracy plane mirror interferometer ideal for use in precision calibration applications. Used with the 10771A Angular Reflector in an 5530 Laser Calibration System, the interferometer measures 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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Three Axis Interferometer
10735A
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The Keysight 10735A 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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Plane Mirror Reflector
10724A
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The Keysight 10724A reflector is used with the Keysight 10706A, 10706B, 10715A and 10716A interferometers for single-axis measurements. It can also be used with the Keysight 10737L/R Compact Three-Axis Interferometers. Alignment hardware is included.
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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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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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Turning Mirror
10769A
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The 10769A is ideal for use in laser measurement and calibration applications. In the calibration of slant bed lathes, for example, the beam steering mirror deflects the beam from the laser head upward, through the interferometer, along the lathe's cross slide. One or more mirrors can also create a path from a laser head to an interferometer located in an otherwise inaccessible position, as in the case of a milling machine with a table that moves in only one axis.
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MPO/MTP Multi-Fiber Interferometer
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Anfkom International Co.,Limited
It is an automatic and non contact fiber endface interferometer for both multi fiber and single fiber connectors. It can measure the geometry parameters of multi fiber connector such as fiber height,core dip, X and Y angel, radius of curvature with white light and measure geometry parameters of single fiber connector with red light. The software can display the surface of the connector in 3D image for a very short time, it need only 8s to test 12-core MT connector. It is intelligent , efficient,stable and accurate and very helpful in improving the quality of the product.
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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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High Stability Plane Mirror Interferometer
10706B
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The Keysight 10706B High Stability 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. This thermally stable optic, an exact functional replacement for the 10706A Plane Mirror Interferometer, reduces thermal measurement drift to 1/12 the value typically achieved by conventional plane mirror interferometers. The unique contribution of the 10706B 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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Plane Mirror
10728A
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The Keysight 10728A is a normal incidence plane mirror for beam diameters of 9 mm or less. It is a bare optic that requires a user-supplied mount. It is typically used with the 10735A and 10736A three axis interferometers.
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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.





























