Carpe diem is a Latin aphorism, usually translated seize the day, taken from the Roman poet Horace 's Odes (23 BC). 1  1 Translation.
Fiber optics (optical fibers) are long, thin strands of very pure glass about the diameter of a human hair. They are arranged in bundles called optical cables and used to transmit light signals over long distances. If you look closely at a single optical fiber, you will see that it has the following parts: 1  Core-Thin glass center of the fiber where the light travels. 2  Cladding-Outer optical material surrounding the core that reflects the light back into the core.
Fiber optic cables are high-speed cables that are generally used for computer networking. In some cases, these cables become defective and lose their ability to properly transfer a signal. However, you can test the signal strength of these cables with a fiber-optic cable tester. With this device, testing a cable is an easy process. Connect one end of your fiber-optic cable to the port on your cable tester. Connect the other end of your cable to the other port on your tester. Turn your cable tester on by pressing the Power button on the front of the device.