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
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
Polarization Instrumentation
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This page features the optics and instrumentation necessary to control and measure the polarization of light. Our free-space and fiber-coupled polarimeters can measure any state of polarization (SOP) on the Poincaré sphere.
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Product
Optogenetics
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Thorlabs offers a line of optogenetics equipment that allows for in vivo optical stimulation for neuroscience research. We currently offer a large selection of optogenetics supplies, including implantable fiber optic cannulae with ceramic or stainless steel Ø1.25 or Ø2.5 mm ferrules, available both cleaved and scissor-cut.
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Product
PRO8 Modular Laser Diode Platform
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Thorlabs offers the PRO8 modular test and measurement platform in 2-slot and 8-slot configurations. These customizable bench top chassis let users build a compact fiber or laser diode testing platforms for their lab or factory floor. Modules include lasers, TEC controllers, optical switches, and current controllers.
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Product
M² Measurement Systems
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Thorlabs' M2 Measurement Systems provide self-contained, turn-key solutions for measuring M2, divergence, focus diameter, waist position, Rayleigh length and other laser beam quality metrics. Pre-configured, factory-aligned systems covering wavelength ranges between 250 nm and 2700 nm are available. Choose from among systems that have a scanning-slit beam profiler, a camera beam profiler, or no beam profiler.
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Product
Imaging Systems & Components
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Thorlabs offers a wide selection of laser scanning, widefield imaging, and OCT imaging systems, including multiphoton microscopes, confocal microscopes, electrophysiology rigs, swept-source OCT systems, and spectral-radar OCT systems.
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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
Light Analysis
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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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Product
Fiber Photodiode Power Sensors
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These interfaces provide communication between an attached sensor and a PC or other external control unit. They are designed to be controlled via an external device or operated autonomously using the analog output; there are no controls or display screens.
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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
1.533 Μm Frequency-Locked Laser
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Thorlabs' LLD1530 Frequency-Locked Laser is a narrow linewidth, DFB-laser-diode-based, turnkey system with a vacuum emission wavelength of 1532.8323 nm and a high SMSR of at least 35 dB. The laser frequency is actively stabilized to a National Institute of Standards and Technology (NIST)-traceable molecular transition of acetylene and has an absolute accuracy at start-up that is better than ±25 MHz. The emission frequency immediately after start-up is then maintained with a ±25 MHz stability, providing an overall frequency accuracy of ±50 MHz. The LLD1530 is an accurate frequency reference designed to provide low-noise laser emission with excellent frequency stability, accuracy, and precision immediately at start-up. This source is ideal for use in demanding FTIR instrumentation, instrument calibration, gas sensing, and coherent telecommunications applications.
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Product
2-Wavelength, Polarization-Maintaining WDMs
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Thorlabs' Fused Polarization Maintaining (PM) Wavelength Division Multiplexers (WDMs) combine two wavelengths of light in PM fiber while maintaining the polarization of the incident light. These WDMs are reversible; they can also be used to split two discrete wavelengths entering the common port into two separate output ports. They are not designed to split the output from a broadband source. PM WDMs are often used for pump / signal applications that incorporate erbium-doped or ytterbium-doped fiber amplifiers. They can be readily customized for a wide variety of applications, enabling rapid design cycles and new project builds. For custom requests, please contact Tech Support.
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Product
Optical Power And Energy Meters
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Thorlabs' expanding line of optical power and energy meters includes power meter consoles, a large selection of sensor heads, a wireless power meter with a built-in photodiode sensor, and a fiber optic power meter designed for use in the field. The consoles (PM100, PM400, and PM300 Series) when paired with our extensive line of power and energy sensors provide calibrated (NIST traceable) measurements across a broad range of powers, energies, and wavelengths. The console(s) and sensor(s) can be purchased individually or as bundles based on our most popular console and sensor pairings. The sensor calibration data is stored in the sensor head and is automatically read by the console, which allows the user to use multiple sensors with the same console. Compatible sensors are easily identified by the red c-series connector. All of our old A/B-Type sensors are available with the new connector; plus, we have continued to expand our power and energy sensor product lines.
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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
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.

















