Interferometers
Combine waves to reveal their properties by measuring the pattern of interference.
See Also: Beam Splitters
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Cylindrical Crankshaft/Camshaft Gage
1200-HC
The Adcole Model 1200 Cylindrical Coordinate Measurement Machine (CCMM) is a highly accurate gage for measuring camshafts, crankshafts and other cylindrical parts that feature tight part tolerances. The system employs a proprietary laser interferometer technology to deliver precise radial and length measurements.
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Short Range Straightness Optics
10774A
The Keysight 10774A Short Range Straighness Optics combines a straightness interferometer and reflector to make measurements over a range of travel up to 3 m (10 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 0.04 micrometer (1 uin).
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Fourier Transform Optical Spectrum Analyzer, 600 - 1700 nm
OSA202C
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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Angular Interferometer
10770A
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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Optics
Welcome to Thorlabs; below you will find links to optical components and systems, a subset of our entire line of photonics products. All single element optical components can be found under the optical elements link with the exception of optical components that have polarization properties since they have a separate link. Multi-element systems like beam expanders and objective lenses as well as interferometers, fiber collimators, reference cells, modulators, and other optical devices can be found by choosing the optical systems link. Thorlabs also manufactures an extensive line of free-space and fiber optic isolators; stock items ship the same day that they are ordered while our custom orders benefit from our streamlined design and manufacturing process, which minimizes lead time.
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Digital Automated Interferometer and Microscope for Surface Inspection
DAISI-V3
The ultimate production interferometer for measuring end-face geometry on single-fiber connectors, equipped with a revolutionary «no-exterior-moving-parts» mechanical design.
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spectrometers
VERTEX 80/80v
The VERTEX 80 and the VERTEX 80v vacuum FT-IR spectrometers are based on the actively aligned UltraScan™ interferometer, which provides PEAK spectral resolution. The precise linear air bearing scanner and PEAK quality optics guarantees the ultimate sensitivity and stability. The VERTEX 80v is an evacuated optics bench that can eliminate atmospheric moisture absorptions for ultimate sensitivity and stability; enabling demanding experiments such as high resolution, ultra fast rapidscan, step-scan, or UV spectral range measurements.
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Dynamic Laser Interferometer
DynaFiz
Purpose built for reliable interferometry in vibration-prone environments; versatile and flexible enough to address a wide range of application needs from high-end telescope testing to live phase feedback for active alignment of optical systems.
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Laser Head
5517EL
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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Digital Automated Fiber & Ferrule Interferometer For Multi-Fiber Connectors
DAFFI MT
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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Differential Interferometer
10715A
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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MFI Michelson Fiber Interferometer
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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PCI Three-Axis High Performance Laser Board with External Sampling
N1231B
The Keysight N1231B PCI Three-Axis Laser Board with External Sampling is a register based PCI bus board that implements three axes of laser interferometer measurement for position monitoring and closed-loop servo control. There are four external sample inputs along with four data hold inputs that allow easy synchronization with user systems. Several threshold compare registers, with both hardware outputs and interrupt capability, can be used for travel limit and in window or out of window detection functions. The dual mode hardware position outputs, controlled by the hold inputs, provide either a 32-bits/axis parallel interface or a 36-bit multiplexed interface to the 36-bit axis position data at rates up to 20MHz. The user can programmatically access the externally sampled position and velocity data, as well as software sampled position and velocity data, over the PCI bus at rates up to 100kHz (3 axes of position and velocity) or 200kHz (position or velocity only).
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Multi-Surface Profiler
Tropel® FlatMaster® MSP
The Tropel® FlatMaster® MSP (Multi-Surface Profiler) is a frequency stepping interferometer that provides fast and accurate metrology for semiconductor wafers up to 300mm in diameter. In seconds up to 3 million data points are collected with sub-micron accuracy enabling total thickness and flatness characterization over the entire surface.
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2x2 Interferometric Couplers
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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Fizeau Interferometers
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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Automated Interferometer with Floating Pastille Technology
DAISI MT FP
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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Tripod
10753B
The Keysight 10753B Tripod provides a mounting for the Keysight 5519A/B laser head. The tripod allows Keysight 5530Laser Calibrationsystem optics to be located remotely from the laser head, yielding greater accuracy and simplifying fixturing. The remote setup also eliminates heat-caused distortions. The Keysight 10753B adjusts for height, rotation, tilt, and lateral offset. The tripod is collapsible, covers a height range of 900 mm (35.5 in) to 1630 mm (64.0 in), and has a net weight of 14 kg (31 lb). The Keysight 10753B tripod complements a family of measurement optics and lasers that comprise Keysight laser interferometer calibration systems.
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Plane Mirror Converter
10722A
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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Dynamic Interferometry
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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Fiber End-Face Inspection Interferometer
CLEAVEMETER 3D
The CLEAVEMETER 3D™ is a non-contact interferometer designed for inspecting the end-faces of cleaved or polished optical fibers with cladding diameters of 125 µm to 1200 µm. It gives immediate and precise information on important end-face properties such as flatness, perpendicularity, hackles and dust. Based on the NYFORS CLEAVEMETER 3D™ design, in addition to producing sharp fringe patterns it also generates three-dimensional images of the cleaved fiber end.
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Ultra-High Resolution Spectrometers
Fabry-Pérot interferometers are optical resonators used for high-resolution spectroscopy. They use the phenomenon of multiple-beam interference that results when light shines through a cavity bounded by two reflective parallel surfaces. When the light hits one of the surfaces, some is transmitted out, and the remaining part is reflected back. Fabry-Pérot produces a circular fringe pattern, similar to the Michelson pattern. However, the fringes are thinning, brighter, and more widely spaced. As a result, these instruments are able to detect and resolve the fine features of a transmission spectrum with high precision.
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Linear Interferometer
10702A
The 10702A includes one 10703A Retroreflector as a reference reflector. A second 10703A is needed to complete the linear measurement optic set. The interferometer cannot be used to bend the beam. If the interferometer is the moving component, the 10702A Option 001 must be ordered. More about the 10703A Retroreflector
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Ultimate Shaft Measuring Gae with Laser Interferometer
1200LX
The Adcole Model 1200-LX is a high-speed, high-precision gage designed to measure crankshafts, camshafts, pistons, and other cylindrical components in demanding production environments. Simple to operate, with comprehensive, easy-to-understand pass/fail output reports, the Model 1200-LX is vital for verifying part tolerances, minimizing scrap, flagging potential quality issues, qualifying grinders and machining tools, and helping to eliminate quality breaches.
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1-Inch Cube Corner
10713B
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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Selectable Magnification Interferometer
FiBO 300
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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2.5G DPSK Demodulator
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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PC System Electronics
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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VME System Electronics
Keysight VME electronics give the highest performance available in a laser interferometer system. Choose from a variety of axis and compensation boards.





























