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9 articles
Photonics Handbook
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Detectors: Options for Low-Light Applications
SLAWOMIR PIATEK AND EARL HERGERT, HAMAMATSU CORPORATION
Developed in the early 1990s, the silicon photomultiplier (SiPM) is a solid-state photodetector whose sensitivity to light rivals that of a photomultiplier tube (PMT) in a regime where a few hundred...
Industrial Lasers: An Introduction to Process Qualification
JOCHEN DEILE AND FRANK GAEBLER, COHERENT INC.
Materials processing with lasers is actually a broad term for a diverse range of applications. The major categories of these uses, and the lasers that service them, are summarized Table 1. At one...
Nanopositioning: A Step Ahead
Scott Jordan, Brian Lula, and Stefan Vorndran, PI (Physik Instrumente) LP
By its original definition, a nanopositioning device is a mechanism capable of repeatedly delivering motion in increments as small as one nanometer. Lately demands from industry and research have...
Thin-Film Coatings: A Buyers' Guide
Trey Turner and Roger Kirschner, Research Electro-Optics Inc. (REO)
What are thin-film coatings? The purpose of any optical thin-film coating is to modify the transmittance and reflectance properties of the substrate material to which they are applied. Most coatings...
Laser Beam Measurement: Slit-Based Profilers for Pulsed Beams
Allen M. Cary, Photon Inc.
Measuring pulsed-beam lasers has generally required the use of a CCD array profiler. This is a reasonable solution for low-power lasers in the UV and visible wavelength range, but these require...
Component Choices: Avoiding Tolerancing Mistakes
Warren J. Smith, Rockwell Collins Optronics
To the novice or casual user of optics, the acquisition of an optical system can be a very difficult experience. Failure to understand the ground rules can result in unnecessarily high cost, late...
Spectroscopy: The Tools of the Trade
Dr. John R. Gilchrist, Clyde HSI
All optical spectrometry techniques rely on the measurement of radiant power. The configuration of the instrument varies based on the measurement technique: absorption, emission, luminescence, 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...
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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