Ophir Photonics Featured Articles
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Measuring Challenges Of Wide Divergent Beams
12/2/2020
Wide, divergent beams place specific requirements on a measurement system. The apertures of conventional beam profilers are too small to collect the entire spot of large or divergent light sources, while diverging beams cannot be accurately measured with regular detectors.
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Introducing Premium Energy Sensors (Even For UV)
11/2/2020
When the pulse energy density becomes too high even for absorbers with pyroelectric crystals, diffusers are often used to spread the beam and reduce the energy density on the absorber. However, they cannot escape the challenges the UV radiation introduces.
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Meet The New Beam Profile Finder
11/2/2020
This choice considers more than just the measuring power for a single device. It includes decisions on camera type, attenuator model, the option of using a beam expander or beam reducer, and how to fit all these together so they work with each other in a viable solution.
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LiDAR: Measuring The Measurement System Is Essential
10/1/2020
This white paper discusses the importance of precisely measuring LiDAR parameters and its impact on the performance and construction of LiDAR systems.
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Beam Attenuation: Key To Successful Beam Profiling
10/1/2020
This white paper discusses why beam attenuation is critical because lasers designed for cutting sheet steel will have no trouble cutting through a beam profiler if the beam power isn't attenuated.
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Challenges And Opportunities Of UV Disinfection
10/1/2020
This article offers measurement considerations of disinfection methods based on UV radiation for fighting COVID-19 in the current pandemic.
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Joined Fast Together: e-Mobility And Laser Welding In Automotive Production
9/2/2020
The latest automotive manufacturing processes and e-mobility technologies are tightly linked to laser welding. This white paper explores the challenges found in this juncture and why the quality of the laser beam is so important.
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Laser Measurements In Materials Processing: How And When They Absolutely, Positively Must Be Made
9/2/2020
When improving laser-based processes, there are a variety of parameters that must be measured. Additionally, the continuously rising power of laser systems in material processing makes the requirements for laser measurement systems more challenging than ever. This white paper discusses laser measurements in materials processing as well as how and when they must be made for the best results.
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Overcoming The Challenges Of Measuring High Power NIR Lasers
9/2/2020
A variety of applications and production rates require periodic checkups or constant tracking of parameters, to ensure process control and quality assurance. Parameters to be tracked can include spot size, beam shape/mode, focusing position, M2, and laser power/energy. While laser power/energy can be measured by a conventional thermopile sensor with water cooling, other parameters such as spot size, beam shape, focal position, and M2 require more advanced techniques to measure high power laser parameters without distorting them or damaging the analytical equipment. This white paper discusses the challenges of measuring high power NIR lasers and presents a number of solutions to them.
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How To Properly Select A Laser Power Or Energy Sensor
7/30/2020
Selecting a sensor to accurately measure laser power or pulsed laser energy can seem like a simple procedure, but often, the selection process is limited to choosing a sensor that only meets the range of power or energy to be measured, leaving out other essential criteria.