Sensing, Measurement & Characterization Lasers

What are Sensing, Measurement & Characterization Lasers?

Sensing, Measurement & Characterization Lasers are advanced laser systems (typically CW) designed specifically for a range of applications in fields such as machine vision, particle measurement, gas sensing, Raman spectroscopy, and interferometry. These lasers play a crucial role in providing accurate, high-resolution measurements and detailed characterization of various materials and phenomena. They provide researchers, engineers, and scientists with powerful tools to explore, measure, and understand the physical and chemical properties of materials, substances, and phenomena. Their versatility, accuracy, and non-invasive nature make them indispensable in a wide range of scientific, industrial, and research applications.

Have questions?

Sensing, Measurement & Characterization Applications

Interferometry Lasers: Interferometers are optical devices that utilize the interference of superimposed electromagnetic waves to extract information about the test target. Interferometry lasers (typically CW, SLM, single-mode, UV, violet, blue, green, yellow, red) are used in interferometric applications, exhibiting long coherence length characteristics, which are necessary for accurate measurements.

Machine Vision Lasers: Machine vision refers to the process of utilizing active imaging technologies to automate inspection and analysis for process control and robot guidance in industrial applications. Machine Vision Laser sources (typically CW, visible or IR) provide a means for data collection and analysis, feedback for automatic or manual adjustments, or simply throwing a warning light or even stopping the system.

Particle Measurement Lasers: Particle measurement is widely deployed as a means for counting and sizing the number of particles in both air and fluids in optical particle counting and dynamic light scattering applications for example. These lasers (typically CW or ns pulsed, IR) must then have a high-quality continuous-wave TEM00 laser. Otherwise, the speckle pattern of the multi-mode beam will interfere with the measurement of the scattered light.

Raman Spectroscopy Lasers: (CW & ps or fs pulsed, SLM, single/multimod, UV, violet, blue, green, yellow, red) Raman Spectroscopy is an analytical technique, studying the vibrational modes of molecules, used to identify and quantify the chemical composition and molecular bond structure of a sample by the analysis of scattered light. Raman spectroscopy lasers are typically wavelength stabilized VBG laser diodes or single-frequency DPSS lasers, which allows for accurate wavelength shift (Raman shift) measurements, critical to Raman Spectroscopy.

Gas Sensing Lasers: Gas sensing lasers are often distributed feedback lasers (DFB) or distributed Bragg reflector lasers (DBR), widely used as gas sensing lasers (typically diodes, SLM, IR or SWIR) due to their ability to be frequency tuned while maintaining single mode operations. Tunable diode laser spectroscopy (TDLS) can measure the concentration, temperature, and pressure of various gases in-situ under harsh conditions with good time resolution, sensitivity, and selectivity.

Recommended Laser Series

We recommend the following laser series options for Sensing, Measurement & Characterization applications. There can often be a ton of options and many variables. Contact us today for help finding the perfect laser for your specific application!

Have questions?

Matchbox Series

R1Z4-Matchbox Laser

The Matchbox series offers excellent performance and reliability in the “World’s Smallest” ultra-compact, all-in-one, integrated laser head. They can operate on a 5V power supply while maintaining low noise operation. The monolithic design of the Matchbox Series laser includes thermally stabilized optics in a hermetically sealed housing, ensuring reliable and maintenance-free operation. This series is available in wavelengths from 405 nm thru 1064nm, with options for collimated beam or fiber-coupled output, and single-mode and multimode versions.

LGK Series

The LGK series of HeNe laser modules boast an excellent TEM00 beam, robust mechanical design, a long service life of up to 30,000 hours, and are available in 543, 594, and 632.8nm wavelengths, with output powers up to 20mW. Choose between standard and customized models, with options for single or multimode, random or linear polarization, Brewster window tubes, and fiber coupling. Designed for long life, low noise, and high stability, with many customization options, these HeNe lasers are perfect for spectroscopy, interferometry, holography, and more!

HL Series


The HL Series offers versatile and high-quality laser diode products in a variety of wavelengths and high-power options, ideal for direct imaging, industrial, and bio/medical applications. These reliable, efficient, and compact diodes come in TO-Can packages, making them perfect for OEM integration. Additionally, they operate with TE mode oscillation and are RoHS compliant, ensuring safe use. Choose the HL Series for quality, reliability, and performance in laser diodes. 

LaserBoxx HPE Series


The LaserBoxx HPE Series is a highly versatile and customizable laser diode module series that offers superior performance and reliability in a compact, driver-integrated laser head. With a wide range of wavelengths from the UV to the NIR, this series provides high-power output, removable MM fiber coupling options & dedicated control software with USB and RS232 interfaces, as well as an external controller with power display, ensuring easy integration and precise power and modulation control.

LaserBoxx SLM Series

The LaserBoxx-SLM series of SLM CW DPSS & diode laser modules are available in wavelengths from 532-1064 nm, delivering ultra-narrow line widths with excellent temperature stability and low noise current. Embedded firmware locks the laser on the same mode at each startup. This customizable, compact laser module is available in turn-key or OEM versions, with GUI for remote operation & diagnostics via USB, RS232, or direct I/O interface, with modulation capabilities and adjustable power options.

LDX Series

The LDX Series of made-in-the-US, high-power, multimode laser diodes provide wavelengths from 400nm – 1900nm, a wide range of output powers and package types, as well as completely customized solutions. We have been offering these high-quality laser diodes for over 25 years. The performance, reliability, and lifetimes are time tested, and if for some reason there is an issue, we will make it right. 

LGR Series

The LGR series of HeNe laser replacement tubes provide unparalleled performance for a wide range of applications, have a robust mechanical design, excellent beam quality, and a long service life of up to 30,000 hours. Standard and customized models are available at 632.8nm with output powers up to 10 mW and options for side line suppression, polarization switching elimination, two longitudinal modes, magnetic field stability up to 3 G, and split frequency versions. These advanced options provide versatility for a range of sophisticated and high-precision scientific applications.

PowerMir Series

mirSense Product Family

The PowerMir series is a line of high-power, pulsed Quantum Cascade Lasers based on proprietary technology, available in turnkey benchtop systems, OEM driver + laser module, or HHL package. Our lasers operate in Quasi-Continuous Wave (QCW) mode, enhancing wall-plug efficiency and thermal dissipation. The PowerMir series is ITAR-free, featuring high-powered diodes that emit in the primary atmospheric transmission bands. Our lasers produce a circular TEM00 Gaussian beam for superior performance.

R Series

R Series

The R series of wavelength-stabilized single-mode and multimode laser diodes offer narrow linewidth output in wavelengths from 633nm thru 1064nm, with output powers up to 5 W. This highly customizable series offers package options ranging from components as basic as a TO-56 or 14-pin BF packaged diodes to OEM modules, including electronics, to UL/CE and IEC-certified turn-key systems. The R series is the perfect source for various markets, including chemical analysis, bio-medical, fiber laser, and scientific applications.

REP Series

The REP series includes high-performance, tunable, single-frequency (DFB-like) diode lasers and Fabry-Perot laser diodes in wavelengths from 760nm thru 2350nm, designed to address challenges in Gas Sensing, LIDAR, Spectroscopy, and Telecom. The REP series includes high-power and narrow linewidth options, covering various product ranges at the most popular wavelengths, providing customizable units with multiple packaging options, including the Fiber coupled 14-pin butterfly, TO39 (w/TEC), and TO56.

RPK Series

The RPK Series of multiple, single-emitter fiber-coupled diode lasers are available in wavelengths from 405nm thru 1550nm with up to ≈ 500W output power. Our specialized fiber-coupling techniques ensure high efficiency, stability, and superior beam quality, while rigorous inspections and burn-in procedures guarantee each product’s reliability, stability, and long lifetime. Highly customizable packages allow us to meet our customers’ specific needs, providing high-quality products at reasonable prices. 


The RPKBDL Series is a high-power direct diode turn-key system available in wavelengths of 445nm, 915nm, or 976nm, providing up to 3kW of power and unprecedented brightness. Its pluggable design makes maintenance easy, avoiding troubles and high time costs caused by return-to-factory maintenance. The RPKBDL series results from continuous innovation, ensuring high technical strength and product quality. This highly customizable system allows us to meet our customers’ specific needs, providing high-quality products at reasonable prices.

RWLD Series

The RWLD series offers competitively priced laser diodes with high beam quality and a wide variety of products to support multiple applications. Available in a wide range of wavelengths, power levels, and packages. The RWLD wavelength options span from 405nm to 1650nm, with output powers in the range of 10 mW to 300 mW, packaged in a TO-18 package with photodiode. We also offer customized options, such as a customized wavelength, output power, or a special package to meet your specific needs.

RWLP Series

R3Z0-WSLP-905-050m-M-PD: 905nm Multimode Fiber Coupled Laser Diode

The RWLP series offers an affordable and versatile solution for your laser application needs with single-mode and multimode options and wavelengths from 405nm thru the IR region. With customizable options, our team can work with you to solve any challenges you may face. Rigorously tested for long-term reliability, the RWLP series ensures consistent performance and high beam quality. Perfect for integration, this series supports multiple applications including biological and analytical instrumentation. 

SL-Pico Series

sleek modern dpss laser housing, simple cubic design, black and red with optical fiber & connectorThe SL-Pico Series includes the SL-Pico-V and SL-Pico-F, the newest picosecond pulsed supercontinuum laser sources. These lasers are high-power, very stable, capable of delivering up to 20 W of power, and have a broad spectral range from 410 to 2400 nm. The SL-Pico-F is a mode-locked fiber laser with a fixed repetition rate (5, 20, or 80 MHz), and the SL-Pico V series has a tunable repetition rate from 10 kHz to 200 MHz. The SL-Pico is designed to pair with a Flexible Wavelength Selector, creating a broadband, tunable laser system.

SMX Series

image of several free-space and fiber-coupled laser diode package typesThe SMX Series of US-made, high-power, thermally stable, and cost-effective InP laser diodes is available at 13XX, 14XX, 15XX, 16XX, and 19XX nm, perfect for medical, military, aerospace, LIDAR, free-space communications, and more! With a patented EPI structure, low-cost packaging, DFB & SOA configurations, ISO certified supply chain with full lifecycle traceability, focus on ease of integration, and custom design capabilities, this laser diode family is an excellent choice for reliable, high-power InP devices.

TG Series


The TG Series of laser diodes emit in the blue spectral range with non-standard wavelengths from 418 nm up to 466 nm, perfect for Life Science applications, with a typical output power of 50mW and an absolute maximum output power of 100mW. Assembled in a 5.6 mm (TO-56) packages the TG series is a suitable for a wide range of OEM applications that require blue/violet light, including ECDL with low AR coating option.

TLS Series

sleek modern dpss laser housing, simple cubic design, black and redThe TLS series is the broadest continuously optically tunable broadband laser combining a supercontinuum laser & tunable bandpass filter. Users can tune output power, wavelengths from 410-1700nm by choosing the VIS, IR, SWIR, or a custom configuration, and real-time bandwidth control for TLS-Red (10 or 20nm fixed for TLS-Blue). These picosecond tunable lasers are suitable for various fields that require precision scanning and high output from fluorescence microscopy to time-resolved spectroscopy, such as TCSPC, Hyperspectral imaging, Machine vision, Semiconductors, Sensors, and other applications.

UniMir Series

mirSense UniMir HHLThe uniMir Series is a long-wavelength, single-frequency, DFB, CW Quantum Cascade Laser based on proprietary technology. The technology’s versatility allows them to address any wavelength between 10 and 18µm in CW and up to 21µm in pulsed mode. Now commercially available in a sealed High Heat Load (HHL) package, with integrated collimating lens, thermistor, and thermoelectric cooler (TEC), well suited for integration into systems, or as a stand-alone turnkey system for R&D and detection applications.