Articles

Published articles, newest first. 22 in total · page 2 of 2

• Laser BasicsOctober 10, 2026Continuous-wave and pulsed lasersHow light that stays on (CW) differs from light that comes in bursts (pulsed), the four numbers that describe a pulse train, and why the same average power can give very different peak power.
• Laser BasicsOctober 10, 2026Laser safety: classes and how to read eyewear labelsWhat laser safety classes, maximum permissible exposure (MPE) and the wavelength and OD markings on eyewear mean, read with the conditions the official documents attach.
• Laser BasicsOctober 10, 2026Laser types at a glance: gas, solid-state, fiber, semiconductorLasers are grouped by gain medium into gas, solid-state, fiber and semiconductor types. One table gives each type's medium, pumping, typical wavelength and uses, and says where sources disagree.
• Laser BasicsOctober 10, 2026Light basics: waves, wavelength, frequency and photonsA high-school-level recap of wavelength, frequency, the speed of light, photon energy, and reflection, refraction and absorption, so the terms in the laser articles feel familiar.
• Laser BasicsOctober 10, 2026Oscillators and amplifiers: making light, then growing itWhy a laser can have one part that makes the light and another that makes it stronger, and what the MOPA layout is, explained with diagrams and public sources.
• Laser BasicsOctober 10, 2026Power, energy and intensity: W, J and W/cm²What power (W), energy (J) and intensity (W/cm²) each measure, shown with a light bulb and sunlight, and what a news report's "kW-class" does and does not tell you.
• Laser BasicsOctober 10, 2026The three parts of a laser: gain medium, pump and resonatorWhat the three basic parts of a laser (gain medium, pumping and resonator) each do, and how stimulated emission makes light grow, explained with diagrams and public sources.
• Fiber LasersOctober 10, 2026What is a fiber laser? Growing light inside a thin glass fiberA fiber laser is a laser whose gain medium is an optical fiber, a thin strand of glass, itself. This article shows what the three parts of a laser correspond to inside the fiber, how different sources state the wavelength of ytterbium (Yb) fiber lasers, and what conditions come with the claimed advantages.
• Laser BasicsOctober 10, 2026What is a laser? How it differs from a light bulbHow laser light differs from bulb light through three features (one direction, one color, in step), plus the meaning of the name, the first laser and common misunderstandings, based on public sources.
• Laser BasicsOctober 10, 2026Why wavelength matters: visible and invisible lightHow wavelength changes the color of light, whether you can see it, where it is absorbed in the eye, and how it passes through air, explained from public sources.