Technical Notes

Spatial filters provide a convenient way to remove random fluctuations from the intensity profile of a laser beam. This greatly improves resolution — which is especially critical for …

Given the different types of laser beam spatial distributions and their evolution as they propagate in free space and through optical elements, measurement of the beam profile is critical …

Accurate temporal characterization of pulsed sources is as critical as accurately estimating the pulse energy and spatial and spectral profiles.

Optical coatings typically consist of thin films made up of single or multiple layers of either metallic or dielectric materials. When properly designed and fabricated, these coatings …

In addition to being deposited on the surface of an optical component, optical coatings can also be incorporated into a single element through deposition on one or many substrates followed …

This technical note discusses the fundamental physics of optical fibers, their practical implementation, and the various types of optical fibers.

This technical note describes the fundamentals of vibration and how these concepts relate to measurable parameters such as compliance and maximum relative motion.

The term optical table system typically refers to a vibration-isolation system, that is, the tabletop plus the support system.

High temperature burn-in screening is used in laser diode manufacturing to screen out devices that are likely to have unacceptably short lives and to ensure that the remaining population …

Life test studies are used to collect laser diode lifetime data under carefully controlled operating conditions. These data are then used to develop statistical models that can predict …

Laser diodes are characterized by their inherent physical properties within five distinct categories, including: electrical, spatial, spectral, optical, and dynamic properties.

OE converters typically employ photodiodes to absorb incoming photons and convert them into electrical current. Photodiodes are devices in which p-type, n-type, and intrinsic semiconductors …

Good fiber alignment produces the highest coupling efficiency and therefore the least signal loss before assembly or packaging of an optical system.

The surface temperature of the sun is approximately 5800 K; this means that the electromagnetic spectrum of radiation from the sun is similar to that of a 5800 K blackbody with the …

The TLS is versatile, being both a broadband and high-resolution monochromatic light source which makes it suitable for applications such as the study of wavelength-dependent chemical …

Newport's VIB320 Series isolators utilize patented VIBe™ technology to attenuate the transmission of vibrations without the need for electronics, air hoses, compressor or other supporting …

All standard Richardson gratings have a part number following the format AA BBB CC DD - EEE x

Reliable spectroradiometry takes a lifetime of work and attention to master. Unreliable spectroradiometry is much easier to accomplish1 all it takes is missing a single critical point, …

It is important that users of calibrated power meters and detectors understand and take into consideration the total uncer- tainty or error that exists in their measurements. Often, …

Many common spectroscopic measurements require the coordinated operation of a detection instrument and light source, as well as data acquisition and processing. Integration of individual …