Tag: THz Measurement

OEM Laser Energy Sensors

The beauty of integrating an OEM sensor into your laser system is you get to call the shots. What matters to you the most?  Accuracy?  Size?  Output type? Contact us

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Here’s How Klaus Hansen Measures his Laser

We are proud to announce that Klaus Hansen is the winner of our Facebook beam profiling image contest.  He entered the picture below – “advanced beam shaping for laser cutting and welding.”   Want to know how and why he profiles his laser systems?  Want to find out the trick he uses to make laser…

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What Is an ND Filter? How You Should (and Shouldn’t) Use It

Short answer: A neutral density attenuator. Meaning? Long(er) answer: A filter that attenuates all wavelengths equally.  Well, that’s an ideal ND filter, anyway.  A real one affects different wavelength differently, but the difference is kept to a minimum. Contact us

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There’s Now a Standard Sensor for Terahertz Laser Measurement

When you think of electromagnetic radiation, what pops into your head?  X-Rays?  Radio waves?  Microwaves?  Or maybe just plain old light. What most people don’t think about – or hadn’t until recently – is the small gap in between microwaves and infrared light waves.  This gap is called Terahertz, as it represents waves with a…

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Extending the Power Range of a Photodiode Laser Sensor

If you want to measure low laser power, you’ll likely use a photodiode sensor. Now imagine your laser varies in power, or perhaps you have several lasers you need to measure, with different power outputs.  Of course, ideally you’d like to measure them all with the same sensor.  But can you? Contact us

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A Photodiode Laser Sensor for Every Wavelength

If you are measuring very low powers, you’ll want a photodiode power sensor. These come in various models, with physically different detectors. Some are made from Silicon, some are Germanium, etc. Different detectors act differently at different wavelengths. For example Contact us

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Measuring Very High Power Laser Beams: Challenges and Solutions

Laser beams with powers of many tens of Kilowatts are becoming more and more common in today’s applications, industrial as well as research. This video will discuss the technical challenges in measuring such lasers, and will show you a range of solutions now available from Ophir for measuring up to 100KW — safely, and accurately.…

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Laser Power Meter and Sensor Compatibility

Ophir laser power sensors have a smart head which allows for complete plug-and-play, where any sensor works with any meter.  The smart head stores all the sensor settings (such as calibration information) so they are saved even when using a different power meter. Contact us

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Wavelength Guide for Thermal Laser Power Sensors

Thermal laser power sensors have various coatings used to absorb the laser heat.  Each coating has its own absorption per wavelength graph which means that each coating also has its own range of calibrated wavelengths. Contact us

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How to Measure Laser Exposure

Usually, laser measurement focuses on power or energy, (or both). In some cases, however, the total energy exposure needs to be measured. Exposure means the sum of all the energy that hits the target (be it metal, electronic wafer, or human skin). Two common cases where exposure is key are medical lasers and photolithography. In…

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Long Distance Between Sensor and Meter

Sometimes you may need a longer-than-standard distance between your laser power/energy meter and your sensor. In this video, you will learn about the various solutions available from Ophir for this. Contact us

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How to Use a Water-Cooled Laser Power Sensor

Thermal laser sensors for high powers are usually water-cooled.  Ophir has water-cooled sensors for powers from 250 W to 100 kW.  There are a few things you might have been wondering about and even some things you might not have considered.  I’ll outline the basic things you should keep in mind to get the best…

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