Interferometers
Combine waves to reveal their properties by measuring the pattern of interference.
See Also: Beam Splitters
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Optical Profilometer
NanoMap-WLI
White light interferometer- brings high resolution. 4 million pixel image, large scanning range, customizable wavelength range to give users flexibility to image any kind of surfaces with ease.
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Simultaneous Multi-Surface Test Interferometer
VeriFire MST
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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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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Inside Dimension (ID) Measuring Instruments
Pratt & Whitney Measurement Systems, Inc.
High accuracy is maintained by its laser interferometer, zero Abbe offset design, and large measuring table with swivel, center, tilt, and elevation control knobs.
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High Stability Plane Mirror Interferometer
10706B
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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Three Axis Interferometer
10735A
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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Mach-Zehnder Fiber Interferometer
MZI
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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Light Analysis
Welcome to Thorlabs; below you will find links to detectors and instrumentation that measure the various properties of light, a subset of our entire line of photonics products. Thorlabs offers an extensive selection of instruments that measure the properties of light. Our versatile power and energy meters can be used with over 25 different sensors in order to make NIST-traceable power and energy measurements. If the convenience of a meter is not desired, our selection of detectors includes basic photodiodes (uncalibrated and calibrated), photodetectors (biased, amplified, and avalanche), CCD and CMOS arrays, position detectors, integrating spheres, and photomultiplier tubes. The Beam Characterization category contains beam profilers (camera and scanning slit), a wavefront sensor, spectrometers, and interferometers, while the Polarimetery link leads to a selection of instruments used to measure and control the polarization of light.
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Interferometers
* Michelson Interferometer with a stabilized single-frequency He-Ne Laser as scale *Measurement range: up to 80 m *Resolution: 5 pm *Wide acceptance angle (up to ± 22.5°) for ball/hollow cube reflector
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Machine Calibration and Optimisation
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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Interferometer
S100|HR
CNC polishing puts new demands on metrology tools. Many of these optics are aspheric with tight tolerances. The new machines can produce almost any surface and require a new level of metrology to provide feedback to the polishing process. This just cannot be done with outdated interferometers designed over 30 years ago. The S100|HR has the performance it takes, without breaking the bank. Measure 10X higher fringe densities to enable final figuring to begin sooner, saving you time and money. Plus measure these high density fringes 5X more accurately to enable large polishing corrections that converge quickly to final figure, including aspheres.
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One Axis Differential Interferometer
10719A
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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Linear Interferometer
10766A
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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Linear Measurement Kit
55280A
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
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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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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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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1/4-Inch Cube Corner
10713D
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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Laser Head
5517B
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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Regeneration Station
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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Fixed Magnification Interferometer
FiBO 250
FiBO 250 offers a solid and economical solution to automated fiber testing by bringing together full 2D visual inspection capabilities and true phase-shifting interferometry to achieve exceptionally accurate measurements. A fixed focal length 10x magnifier ensures maximum system stability and a very high level of repeatability.
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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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Plane Mirror Reflector
10724A
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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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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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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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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Beam Directing and Reflecting Optics
Beam directing and reflecting optics simply reflect, bend or translate the beam, but do not typically modify the polarization, except for polarizing beam splitters. For example, mirrors, cube corners and retroreflectors are attached to objects that move in order to keep the weight down on the moving object (instead of mounting the interferometer on the moving object).
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50% Beam Splitter BK7, Fixed Horizontal-Bend Mount
E1834G
The E1834G is a 50% 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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Precision Optics and Assemblies
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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Plane Mirror
10728A
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.
