Tag: OEM

How do I measure laser power in telecom applications?

Optical laser measurements in telecom applications have unique challenges. This video will introduce you to the solutions Ophir offers to help you.

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A Quick Guide to Optical Measurement Devices

All I know is I want to measure light.  Should I use a light meter, lux meter, laser power meter, optical power meter, radiometer, photometer, spectrometer, or something else I have yet to hear of? Good question. I actually set out to write a blog post about optical power meters, but as I sifted through…

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How can you be sure that your laser’s output is pure laser light?

We’d all love to imagine a world where lasers always perform exactly as they’re meant to.  Unfortunately, the all-too-often reality is that lasers can malfunction, just like anything else.  The question then becomes: “How can I figure out what’s wrong with my laser?”

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Ophir OEM Options

I have a confession. I often freeze up when I go to a salad bar. Do I really know which of the 30-odd vegetables and other ingredients really go best together? I’m sometimes tempted to just ask the chef to put something together for me. “I’ll start you off with tomatoes, but you’ve got to…

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Fiber Coupling of a Laser Diode

Accurately coupling an ND: YAG or another powerful laser into a fiber delivery system can be a challenging task. Here is an example of how the process can be made easier using a beam profiler. Figure 1 shows the beam profile of a laser diode being used as an optical input to a fiber. The…

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A Shortcut for Calculating Laser Power Density

Here’s a laser power density calculator, if that’s what you wanted. Read on if you’re interested in an easy way to calculate power density – even in your head. Laser engineers and technicians are often required to calculate a laser’s power density to determine whether a beam would damage an optic or sensor or for other…

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How to measure broad band light beams with powers in the order of nano watts?

A few months ago we posted about Ophir 3A series of thermal sensors which can measure powers as low as 60 microwatts. The only technology that can be used to measure powers which are lower than a few microwatts is photodiode sensors. Photodiodes are sensitive to extremely low power levels, as low as picowatts.

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Heat Sinking Guidelines

A laser power sensor absorbs laser power while measuring it; if that power is not removed at least as fast as it comes in, the sensor could overheat and fail.

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Easy solutions for measuring low power beams

Many laser beams with powers well under a watt are commonly used for many applications which include: scientific research, fiber optic communications, LED’s, CD and DVD players, laser printers, range finders and many more. What type of measurement sensor should be used for measuring low power light beams?

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How to measure a Barcode scanning laser?

Measuring the power of scanning lasers such as barcode scanners presents a problem. A bar code laser beam scans back and forth at a very high frequency so an ordinary photodiode power meter will not measure the power in the beam but rather the average power impinging on it, i.e. the power times the fraction…

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Caution: Lasers Can Seriously Damage Instruments

A common thread running through many Frequently Asked Questions relates to damage of measuring heads. Many applications involve considerable powers and/or energies; since laser measurement has us deliberately putting a measuring instrument in harm’s way, let’s have a look at the various effects a laser beam can have on an instrument in its path.

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The good old blue jeans with a new laser touch

The Jeans industry is one of the largest industries in the clothing and fashion world, producing over 50 billion dollars a year. Currently, jeans that look bleached, partially or completely, are considered more fashionable than the classic blue jeans. Many methods exist to bleach jeans, the most modern and sophisticated method is laser engraving where…

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