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11 articles
Photonics Handbook
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Measuring Aspheres: Selecting the Best Technique
Amy Frantz, Edmund Optics Inc.
The benefits of aspheric lenses are numerous: They allow for a reduction in spherical aberrations and are ideal for focusing or collimating light, as they can achieve a low ƒ-number. Aspheres...
Optical Design Software: Fundamentals and Potential
Richard Pfisterer, Photon Engineering LLC
Optical design software allows the user to develop a configuration of optical elements that manipulate the trajectory of light for the purposes of creating an image, illuminating a target, coupling...
Powering Lasers: Evaluating Bench Power Supplies
Paul Corr and Patrick Klima, Arroyo Instruments LLC
A bench power supply should be thoroughly tested and characterized before it is used to power a laser. The quality of the controls and safety measures incorporated into a bench supply will need to be...
Ultraviolet Reflectance Imaging: Applications
Dr. Austin Richards, Oculus Photonics
Reflected-ultraviolet imaging is a rather mysterious area of the imaging field. There is relatively little actual UV imagery to be found on the Internet or in the literature compared to near-infrared...
Quantifying Light: Intensity, Uniformity Hold the Key
Steven Giamundo, Fiberoptics Technology, Inc.
Intensity and uniformity can be described using different physical attributes, which makes interpreting requirements somewhat confusing. This article intends to provide an explanation and serve as a...
Camera Resolution: Combining Detector and Optics Performance
Gerald C. Holst, JCD Publishing
Camera resolution depends upon the optical blur diameter and the detector size. Schade combined these to create an equivalent resolution that is a function of Fλ/d where F is the focal ratio,...
High-Speed Video: Selecting a Slow-Motion Imaging System
Andrew Bridges, Photron USA, Inc.
There is a growing market for imaging systems that provides an immediate, slow-motion view of a process that allows one to see events that happen too quickly for the human eye to perceive or...
Global Optimization: A Tool for Successful Design
Thomas G. Kuper and Thomas I. Harris, Optical Research Associates
Some efforts in global optimization research for optical design center around probabilistic methods such as global search. While promising for small problems with few variables, these methods...
Laser Scanning Systems: Optimizing Performance
Yuhong Huang and Eric Ulmer, General Scanning
To obtain optimal performance from a laser scanning system, the system integrator must carefully weigh the effects of each component and consider how best to implement hardware and software to...
Beam Diagnostics: Meeting the Need for High Quality
Coherent, Inc.
For any discussion of laser beam diagnostics, it is first necessary to define some terms that characterize beam properties. Broad definitions can include measurements of laser energy or power,...
Polarization in Fiber Systems: Squeezing out More Bandwidth
Steve Yao, General Photonics Corp.
As bit rates increase to meet expanding demand, systems have become increasingly sensitive to polarization-related impairments. These include polarization mode dispersion (PMD) in optical fibers,...
Photonics Handbook
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