Interferometers
Combine waves to reveal their properties by measuring the pattern of interference.
See Also: Beam Splitters
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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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Photonic Doppler Velocimetry (PDV)
Photonic Doppler velocimetry (PDV) is an established technique used to measure high-velocity events up to tens of km/s. It is also known as heterodyne velocimetry and can be used as a supplementary tool or replacement for Velocity Interferometer System for Any Reflector (VISAR).
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Interferometer Systems
Verifire Series
The Verifire™ interferometer system provides fast and reliable measurements of surface form error, and transmitted wavefront of optical components, systems and assemblies.
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High-Stability Adapter
10723A
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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Retroreflector
10767A
The Keysight 10767A Linear Retroreflector is one component in a family of measurement optics that tailor interferometer systems for the physical layout and measurement requirements of each application. When configured with appropriate Keysight5530 Laser Calibration System components, 10767A becomes part of a precise positioning system that improves product quality, increases yields, and facilitates the manufacture of precision products.
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Interferometers
An instrument in which the interference of two beams of light is employed to make precise measurements.
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Optical Wavelength Meters
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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Portable Connector End Face Geometry Interferometer
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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Two Axis Differential Interferometer
10721A
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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Laser Head
5517CL
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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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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Create Topographic Profiles from SPM Images
TopoStitch
topoStitch™ offers the easiest and most accurate way to stitch topographic or greyscale images from Scanning Probe Microscopes (SPM’s), profilers, interferometers, confocal microscopes or any other instrument type. All images are placed automatically according to stage position coordinates when stored in the image files. Otherwise, the Grid Layout Wizard helps to lay out images in seconds. topoStitch™ even offers advanced snapping and semi transparent rendering, which makes it easy to place and adjust images manually.
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Fiber End-face Interferometer
Anfkom International Co.,Limited
1.Automatic MeasurementSANA2 is equipped with the locking handle sensing unit to monitor the device locking status. To further simplify the testing process, the instrument can start the measurement once the device to be tested is fully locked. Operator can also click the button aside the locking handle to trigger the measurement.2.0~12° APC Angle Auto TuningBenefit with the unique fixture design, SANA2 can tune the APC angle precisely from 0°to 12°automatically, meeting any special requirement on APC angle setting.3.Simple and User Friendly Interfaces and Excellent 3D ImagesThe software of A 2 is simple and user friendly, you can change the language within the software. It provide many endface rebuild method such as 3D, 2D, plot to assist the engineers about the process. The test reports and data are generated automatically for analyzing and tracing.4.Auto Centering ImagesSANA2 has auto centering image function that can find the fiber and makes it to center automatically within one click.No mouse drag or hardware adjustment is needed.5.Cleave Angle Measurement
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*Interferometer Fringe Analysis Software
IFA
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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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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Digital Automated Interferometer for Surface Inspection
DAISI
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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Laser Head
5517A
The Keysight 5517A 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.
