Interferometers
Combine waves to reveal their properties by measuring the pattern of interference.
See Also: Beam Splitters
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Product
Ultra-High Resolution Spectrometers
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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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Product
One Axis Differential Interferometer
10719A
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The Keysight 10719A One Axis Differential Interferometer makes either a differential linear or angular measurement for use in single and multiple axis applications. The linear measurement gauges the displacement between two objects, such as a stage and an optical column or inspection tool. The 10719A also measures either pitch or roll. An angle is measured when both reference and measurement beams measure to the same mirror. 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.
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Product
Optics Height Adjuster and Post
10785A
Accessory Kit
The Keysight 10785A Height Adjuster and Post is used to precisely position optics devices associated with the 5530 Laser Calibration System, such as the 10766A Linear Interferometer. The height adjuster and post also facilitate adjustments in measurements such as pitch and yaw.
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Product
Optics
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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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Product
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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Product
Optical Systems
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Thorlabs' optics can be incorporated together to create packages with new functionalities. Some of the packages highlighted here range from beam expanders and collimators to interferometers and spectroscopy kits. Optical isolators, Pockels cells, and modulators are other examples.
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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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Product
1/4-Inch Cube Corner
10713D
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The Keysight 10713D is one component of a family of measurement optics that tailor interferometer systems for the physical layout and measurement requirements of individual applications. Configured with appropriate laser head and system electronics, the optics are part of a precise positioning system that improves product quality, increases yields, and facilitates manufacture of precision products.
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Product
*Interferometer Fringe Analysis Software
IFA
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Optik Elektronik Gerätetechnik GmbH
IFA serves for the analysis of open interference fringes of interferograms. The system was developed as alternative of difficult and complicated solutions and is ideally suited for the employment in practice. IFA is a low-cost and easy to handle software, which includes all of the mostly used functions of data evaluation.
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Product
FTIR Motor Exhaust Gas Analyzer
MEXA-ONE-FT
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The MEXA-ONE-FT Series simultaneously measures concentrations of multiple components, including NH3, N2O, CH4, CO and CO2, in undiluted exhaust gas using the Fourier transform infrared (FTIR) method in combination with a multivariate analysis algorithm. It incorporates HORIBA's proprietary compact interferometer which yields superior performance and high accuracy.The system complies with NH3 testing requirements of Euro VI, the EU regulation for heavy duty emissions testing.The MEXA-ONE-FT can be calibrated according to customer requirements with up to 6 component sets to cover a wide range of applications.FTIR spectroscopy allows the direct measurement of NO2 emissions and the independent quantification of individual hydrocarbon species. This makes the MEXA-ONE-FT system an ideal solution for detailed research and development tasks.Due to the measurement principle, the time-consuming daily span gas calibration is omitted.In addition, usability and flexibility are realized by “HORIBA ONE PLATFORM” which enables to extend the system with other ONE analyzers to a complete solution suitable for both certification and R&D purposes.
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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
Simultaneous Multi-Surface Test Interferometer
VeriFire MST
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Simplify the complex – multiple surfaces create complex fringe patterns, the Verifire™ MST uses patented wavelength-shifting technology to acquire phase data from multiple surfaces simultaneously. Report key metrics from individual surfaces of parallel windows, transmitted wavefront, as well as precise surface-to-surface information like total thickness variation (TTV), wedge and even material inhomogeneity.
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Product
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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Product
33% Beam Splitter - BK7, fixed horizontal-bend mount
E1834E
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The E1834E is a 33% beam splitter in a high performance horizontal mount that offer the high pointing stability for Keysight laser interferometer measurement system. The 8 flexure feet are designed for stable beam pointing.
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Product
spectrometers
VERTEX 80/80v
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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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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
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
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
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
High-Stability Adapter
10723A
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The Keysight 10723A high-stability adapter converts the 10706A Plane Mirror Interferometer into an 10706B High-Stability Plane Mirror Interferometer. The 10706B is a thermally-stable optic with measurement drift reduced to approximately 1/12 the value achieved by conventional plane mirror interferometers.
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Product
Fourier Transform Optical Spectrum Analyzer, 350 - 1100 nm
OSA201C
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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
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
10702A
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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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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
Machine Calibration and Optimisation
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Renishaw's laser interferometer and ballbar measurement systems assess, monitor and improve the static and dynamic performance of machine tools, co-ordinate measuring machines (CMMs) and other position-critical motion systems.
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Product
SANA 2 Interferometer
CA3004
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SANA 2 fiber endface interferometer is a type of cost-efficient non-contact test instrument with excellent performance. It is able to measure the fiber endface geometry parameters such as radius of curvature, apex offset, fbre height and polishing angle of APC connector.
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Product
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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Product
Single Axis Interferometers
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Linear, single-beam, and plane mirror interferometers measure motion on a single axis.
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Product
Multi-Surface Profiler
Tropel® FlatMaster® MSP
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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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Product
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.
