Accurate beam size measurements for beam sizes under 10 μm are critical for many applications such as fiber optic coupling efficiency, defect scanning, optical design, and optical fabrication process control. The challenges for such a measurement include the use of focal plane arrays that are too large to reasonably profile without magnification, the high mechanical precision of the beam profiling apparatus, and the beams’ high divergences and rapid expansion. Reliable profiles for such small beams, however, can be obtained using near-field or far-field profiling techniques. This article presents and in-depth discussion of each technique, diagrams for their systems' set-up, and the benefits for using each one.
This article discusses the process of transforming a 3D CAD model into a mechanical component, as well as how to use a camera based beam profiling system to assist in achieving consistently accurate constructs.
When a sensor turns out to be an incorrect choice, the system could procure inaccurate measurements, premature failure, and costly full disc replacement and recalibration. This article presents three critical questions to ask before selecting a laser power sensor for a specific application.
Ophir-Spiricon offers three families of UV converter products designed for the indirect measurements of UV laser beam profiles. This application notes compares and contrasts each family, and covers their basic specifications and applications.
There are often times where several laser sources must be tested, validated, or qualified for a particular project. Unfortunately, by the time scientists realize that these measurements need to be made, the laser systems are typically already in place, the experiments are ready to be conducted, and any delays could be counterproductive. Therefore, laser measurement equipment needs to be cost effective, commercially available, easy to use, quick to set up, and operate at a high level of performance. This application note describes the challenges a university had in measuring three different lasers, and how they solved this problem with the Ophir-Spiricon XC-130 InGaAs beam profiling camera.
This article presents recommendations on minimizing corrosion that occurs in water cooled sensors.
In order to get the highest quality heat treatments using lasers, it is important to understand the beam shape, the uniformity of the intensity, and the cleanliness of the delivery optics. This white paper discusses beam diagnostics with the use of Ophir’s BeamGage software used to improve results.
The advanced scalability, high beam quality, and wall-plug efficiency of fiber lasers in particular have made high-power lasers a common tool for commercial use. This paper discusses the concepts of proper monitoring and correctly defined laser parameters in industrial laser applications.
Laser systems used in the periscope of a nuclear-powered submarine providing on-board instrumentation that offers accurate pitch, yaw, and roll data. As a result of the critical nature of this information, the burden is placed on the quality of the laser beam, its size, its shape, and its intensity.
This article discusses the technical challenges and solutions encountered in the development of the BeamWatch measuring instrument.
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