Jim Hayes

Last month, I wrote about types of fiber optic sensors that are used in specialized applications. Most of these affect the transmission of light in the fiber to allow the physical parameter to be sensed either along the...

In last month’s column, I discussed other uses for optical fiber beyond communications. I mentioned lighting, viewing and laser surgery. I also mentioned sensors, the topic I elaborate on this month. One thing all techs learn...

In my magazine column back in July, I mentioned I had been trying to learn more about the new fiber optic cables with very large fiber counts. Today you can buy cables with 1,728, 3,456 and 6,912 fibers. What I wanted to know...

When we discuss our work in fiber optics with people who are not communications contractors or installers, many people assume we work with medical fiber optics because that’s the fiber optics most people are familiar with....

One of the first customer visits I made after starting a company making fiber optic test equipment was in the basement of a government building in Washington, D.C. I brought along one of our test kits for demonstration, with...

For the last couple of columns, I’ve focused on learning new things and techniques. Last month, I wrote about high fiber count cables—1,728, 3,456 and 6,912 fibers—and the need to use ribbon or mass fusion splicing with them....

Last month, I wrote about how a newcomer could get started in fiber optics and learn the basics. What if you are already experienced in fiber optics and want to keep up with new technology? I can empathize with you. I have...

My last two web exclusive articles ( part 1 and part 2 ) have covered how optical time domain reflectometers (OTDR) work and make measurements. Now let’s get into several ways they try to confuse you. Have you heard of...

To get started in fiber optics, you need to follow a simple path. First, if you are looking at it as a new career, you must research the available jobs and determine what is expected of a worker in that field. If you are...

It seems you can’t pick up a newspaper today without seeing an advertisement touting a cellular company’s coming 5G wireless network. Some ads claim the service provider offers 5G connections to the home and you should sign...

In my previous article about OTDRs , I covered the basics of how the instrument works and how it is used to make basic measurements of attenuation, splice or connector loss and reflectance. If you need to, go back and review...

It’s always nice to hear from my readers. In December 2018, I wrote about aerial fiber optic cables, and that column prompted a very interesting inquiry. Usually these inquiries are technical in nature and come from...