Thorlabs, Inc.
Thorlabs is a leading designer and manufacturer of photonics equipment for research, manufacturing, and biomedical applications.
- 973-300-3000
- 973-300-3600
- sales@thorlabs.com
- 43 Sparta Ave
Newton, NJ 07860
United States of America
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Product
Light
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Welcome to Thorlabs; below you will find links to light emitters, sources, and controllers, a subset of our entire line of photonics products. Our light sources are conveniently separated into coherent and incoherent sources. The coherent source category includes laser diodes, laser diode modules, tunable lasers, HeNe lasers, and femtosecond lasers, while the incoherent source link brings you to a selection of LEDs, white light, and broadband SLD sources. The Quantum Electronics category includes optical amplifiers, modulators, and gain elements that are frequently used in research and OEM applications. All of our light sources and optical amplifiers are supported by an extensive line of mounts, sockets, TEC controllers, and current controllers.
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Product
Motion Control
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Welcome to Thorlabs; below you will find links to our selection of Motion Control products, a subset of our entire line of photonics products. Thorlabs’ motion control products are separated into manual and motorized linear and rotation stages, multiaxis platforms, actuators, and controllers. The manual and motorized stages can frequently be configured into 1-, 2-, or 3-axis solutions. Since many of the stages are available in either manual or motorized versions, creating a custom system is easy. For nanopositioning applications like waveguide and fiber coupling, our line of multiaxis flexure stages are ideal. Both the motorized stages and the multiaxis platforms are supported by a complete line of controllers for the various motors and piezoelectric actuators. In addition, we support custom and OEM motion control applications with an extensive line of manual, motorized, and piezo actuators as well as threaded adjustment screws.
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Product
Extinction Ratio Meter
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The ERM100 is an extinction ratio meter based on the rotating polarizer technique. This benchtop device offers a fast and simple way to measure the ER of Polarization Maintaining (PM) fibers. It is an easy-to-use device that may be utilized in many applications where the alignment of PM fibers is required.
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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
Ultrafast Fiber Optic Photodetectors
DXM Series
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The DXM series of Ultrafast Detectors are fiber-coupled photodetectors with wide wavelength ranges, as shown in the plot to the right, that are designed to be used for a variety applications. Each provides a high-fidelity electrical output pulse in response to an optical input pulse, and their clean impulse responses have full width half maxima (FWHM) down to 15 ps.
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Product
Telecom Fiber Couplers
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Thorlabs offers a varied selection of single mode (SM) and polarization-maintaining (PM) fiber couplers, as well as single mode 1x8 and 1x16 PLC waveguide splitters that have center wavelengths at common telecom wavelengths, including 850 nm, 1310 nm, and 1550 nm.
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Product
Mode-Conditioned Light Sources
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Thorlabs' Mode-Conditioned Light Sources are fiber-coupled LED sources that have an output with a flat-top profile in the far field. Common applications include the testing of multimode fused fiber components as well as verification of modal behavior in fiber-based setups. Standard fiber-coupled LED sources can have a range of output profiles that are usually not uniform and vary from source to source. This can be dependent on emitter orientation, alignment with fiber tip, and connector assembly. These mode-conditioned sources have been engineered to distribute light evenly into all transverse modes, resulting in an equilibrium modal distribution at the output. The front panel includes an adjustment knob to control the power and an output port that accepts 2.2 mm wide-key FC/PC connectors. A DS15 15 V power supply with a location-specific plug is included with each device.
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Product
Optomechanics
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Welcome to Thorlabs; below you will find links to our extensive Optomechanical product line, a subset of our entire line of photonics products. Optomechanics is a broad category that includes optical tables and breadboards, optical mounts and construction components, mechanical devices with integrated electronics, kits that make it easy to buy a popular set of components or a set of components that can be assembled to perform a specific function, and general laboratory supplies and tools. Because of the large selection, Optomechanics does not include translation and rotation stages and their controllers; instead those products have their own category.
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Product
Galvo-Resonant Scan Head and Controller
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Our LSK-GR08(/M) Galvo-Resonant Scanner contains one resonant scan mirror and one galvo scan mirror that deflect an incident laser beam in X and Y, respectively. Identical to the galvo-resonant scanner used in our Bergamo® II multiphoton microscopes and complete Cerna®-based confocal systems, the 8 kHz resonant frequency of the resonant scan mirror enables much higher-speed scans than a galvo-galvo system. In our Bergamo system, the scanner can achieve 30 fps at 512 x 512 pixels image resolution.
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Product
sCMOS Camera
Quantalux
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Thorlabs' Quantalux™ Scientific CMOS (sCMOS) Camera offers extremely low read noise and high sensitivity for demanding imaging applications. The compact housing has been engineered to provide passive thermal management for the sensor, reducing dark current without the need for a cooling fan or thermoelectric cooler. These features makes the Quantalux camera ideally suited for low-light imaging applications such as fluorescence microscopy.
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Product
Fiber Test & Measurement
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Thorlabs manufactures a range of devices for testing and measuring the performance of optical fiber. Power, spectral signature, polarization, or end face surface geometry can by characterized with out-of-the-box solutions from our catalog. EO modulators, optical switches, and light sources are available to treat light being used on a test bed.
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Product
Actuators, Adjusters, & Transducers
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We offer a wide range of adjustment screws, micrometers, and kinematic positioners, as well as stepper motor, DC servo, high-precision piezo inertia actuators, and voice coil actuators. Additionally, our piezoelectric offerings include modular, screw, and replaceable-tip piezoelectric actuators, as well as Langevin transducers for ultrasonic welding applications. A wide variety of piezoelectric chips and stacks are also available.
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Product
Fiber Optomechanics
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The versatile FiberBench product line includes Single and Multi-Axis FiberBenches as well as a wide variety of compatible components ranging from beamsplitter modules to wave plate units. FiberBenches form the foundation of a nearly infinite array of miniature fiber optic systems that customers have been building for the last decade. When used with the FiberPort Collimators/Couplers, a complete optical circuit can be constructed. The Fiber Launch Platforms are ideal for coupling a free space laser into a single mode, multimode, or polarization-maintaining fiber. Other accessories include fiber mounts, fixed and kinematic collimator adapters, and L-bracket mating sleeves.
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Product
High-Dynamic-Range Polarimeters
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*Three Wavelength Ranges Available**400 nm - 700 nm**600 nm - 1080 nm**900 nm - 1700 nm*Rotating-Wave-Plate-Based Measurement*High Dynamic Range of 70 dB*Excellent Azimuth and Ellipticity Accuracy of ±0.25°*Sampling Rate up to 400 Samples/s*Beam Terminates Inside the Module*Ø3.0 mm Free-Space Beam Input or FC/PC Fiber Input *Fully Featured Software Includes Alignment Tool and Extinction Ratio Measurement Tool
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Product
Beam Characterization
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Thorlabs offers a wide range of products that can be used for beam characterization. Properties such as intensity, degree of collimation, power, wavefront shape, and spectral properties can be measured.

















