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Fiber Lasers: Continuing to Power Growth Jan 12, 2021 — Early fiber lasers were inefficient and limited to low powers, until more effective methods emerged to deliver the pump light into the cladding. Valentin Gapontsev, founder and CEO of IPG Photonics, is credited with pioneering the use of distributed side-pumping into a large-area cladding by multiple single-emitter diode lasers, a method that overcame the limitations of previous pumping approaches. The side-pumping approach helped to unleash the true potential of fiber lasers, opened a new era
Machine Vision Cameras: Making the Right Selection Mar 9, 2016 — Technological advances have resulted in new, higher-quality sensors that enable machine vision cameras to deliver greater features and functionality at a lower cost than ever before. These factors are motivating businesses in a widening range of...
Industrial Lasers: An Introduction to Process Qualification Mar 8, 2016 — There is a big step from successfully demonstrating a new laser process on a limited number of samples under laboratory conditions, to scaling that process up for high-volume industrial use. In particular, it’s necessary to determine how variations...
Nanopositioning: A Step Ahead Feb 1, 2016 — It is almost a cliché among students of creativity that innovation occurs at the intersection of fields. Since nanopositioning is a discipline that has enabled swiftly evolving application arenas as diverse as materials science, genomics, photonics,...
Laser Measurement Systems: Best Practices Oct 8, 2015 — Given the pace at which technology advances, there always seems to be a learning curve. With the abundance of consumer electronics available, there typically is no right or wrong way to use these devices — the choice usually comes down to the method...
Aspheric Lenses: Optimizing the Design Sep 1, 2015 — This second of two articles discusses the tools optical designers need to tailor their designs to the appropriate manufacturing process, optimizing the cost of component fabrication.
Fiber Optics: Understanding the Basics Jul 1, 2015 — Nothing has changed the world of communications as much as the development and implementation of optical fiber. This article provides the basic principles needed to work with this technology. Optical fibers are made from either glass or plastic....
Selecting a Photodetector: Using WITS$ as a Rough Guide Jun 29, 2015 — Light is a versatile tool for investigating physical and chemical processes in nature. Any specific system being analyzed may, through the light it emits or reflects, communicate information about itself. Electrical signal is an effective medium for...
Laser Safety: Important Considerations Apr 9, 2015 — When purchasing an industrial laser system, the astute buyer will look for a Class 1 laser product — a system where the laser beam hazard is completely enclosed and there is no potential laser radiation exposure to the operator or anyone in the...
Common Infrared Optical Materials and Coatings: A Guide to Properties, Performance, and Applications Jan 1, 2015 — The purpose of this guide is to identify the most common infrared transmitting materials, point out their key properties, applications, products manufactured, surface specification options, and general antireflection (AR) coating options. AMTIR-1...
Detectors: Guideposts on the Road to Selection Jan 1, 2015 — Choosing a detector requires evaluating many operating parameters and desired outcomes. This introduction provides a series of guideposts that will help lead the way to the right one. Any number of medical, industrial and analytical applications...
Diode-Pumped Lasers: Performance, Reliability Enhance Applications Jan 1, 2015 — The latest technology advances take diode-pumped solid-state lasers into new realms of power and wavelength, enabling many new applications. Neodymium-doped crystals and glasses such as Nd:YAG (neodymium:yttrium aluminum garnet) have long been used...
Excimer Optics: High Power Demands High Reliability Jan 1, 2015 — The first high-reflectance mirror coatings for the UV and vacuum UV (VUV) were of the Al + MgF2 type produced in the late 1950s. Coatings of this design are still used today for multigas cavity mirrors and many other applications because they are...
Lasers: Understanding the Basics Jan 1, 2015 — Although lasers range from quantum-dot to football-field size and utilize materials from free electrons to solids, the underlying operating principles are always the same. This article provides the basic information about how and why lasers work.
Light-Emitting Diodes: A Primer Jan 1, 2015 — The wavelength range of commercially available LEDs with single-element output power of at least 5 mW is 275 to 950 nm. Each wavelength range is made from a specific semiconductor material family, regardless of the manufacturer. This article will...
Plastic Optics: Specifying Injection-Molded Polymer Optics Jan 1, 2015 — The use of precision polymer optics is becoming an increasing necessity today as products demand sophisticated light handling components to achieve desired results. Polymer optics can be thought of as an important enabling technology allowing the...
Thin-Film Coatings: A Buyers' Guide Jan 1, 2015 — What are thin-film coatings? Optical thin-film coatings modify the transmittance and reflectance properties of the substrate material to which they are applied. This article provides an objective overview of typical performance characteristics,...
Optical Delay Lines: Key to Time-Resolved Measurements Dec 8, 2014 — To obtain an accurate means of creating reliable delays in any time-resolved spectroscopy or dynamic experiment, several factors about the delay line stage must be considered to reduce or eliminate errors associated with linear stages. One of the...
Adhesives for Fiber Optics Assembly: Making the Right Choice Mar 8, 2009 — Using the proper adhesive in the assembly of fiber optic components not only saves time and expense, but also can improve reliability and performance. Adhesives for fiber optic components that perform well on glass, metal, ceramic and most plastic...
Beryllium Mirrors: Refinements Enable New Applications Mar 8, 2009 — Beryllium mirrors are finding commercial applications, while maintaining their military and space applications. Refinements in design and improvements in manufacturing technology have cut costs and new coatings have enabled high-power applications...
Broadband Spectrophotometry: A Fast, Simple, Accurate Tool Mar 8, 2009 — Broadband spectrophotometers coupled with relatively simple algorithms can provide fast, nondestructive and comprehensive characterization of thin films. Designing devices that incorporate ultrathin films is an important means of enhancing yields....
Connectors and Splices: Correct Alignment Spells Success Mar 8, 2009 — Whether the job is splicing fibers together or connecting fibers to system devices, alignment is the key to success. This article explores the many ways to achieve that goal. Just as an electronic connector provides a pluggable connection between...
Detectors: CCDs for Life-Science Applications Mar 8, 2009 — The CCD camera is becoming the imaging method of choice in biological laboratories for its resolution, versatility and ease of use. Choosing the best CCD for a given application, however, requires knowing how basic chip parameters affect...
Detectors: The Charge Injection Alternative Mar 8, 2009 — Charge-injection device (CID) technology provides a means to convert optical signals from 185 nm to 1100 nm to electronic charges that can be read out as a video signal or processed via computer. The CID imagers also are capable of directly (or...
Diamond Machining: Ultraprecision Machine Technology Mar 8, 2009 — Ultraprecision machining can be defined in general terms as the removal of material from a substrate utilizing a machine tool that operates at a resolution of 10 nm (0.4 μin.) or less. The machining process may take the form of single-point...
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