Technical Notes

The first way to perform laser wavelength tuning uses a wavelength-selective element to choose a specific portion under a gain bandwidth to lase. The second method of wavelength tuning …

Semiconductor lasers offer the benefits of efficiency, electrical pumping, and the ability to easily integrate with modern electronics which contribute to their ubiquitous usage.

The incoherent light sources discussed here share several characteristics that distinguish them from lasers. Incoherent light gives rise to radiation, which is emitted from the source …

Radiometry is the measurement of energy or power in electromagnetic radiation fields or light. The average output power is the most common radiometric measurement since many light sources, …

The characteristics of such high-speed photoreceivers as well as their associated applications are the subjects of this technical note.

The main types of photoreceivers are those that can detect optical signals with fast temporal responses or those containing high frequency components.

Optical mirrors consist of metallic or dielectric films deposited directly on a substrate such as glass, differing from common mirrors, which are coated on the back surface of the …

A diffraction grating is essentially a multi-slit surface. It provides angular dispersion, i.e., the ability to separate wavelengths based on the angle that they emerge from the gr …

Lenses are essentially light-controlling elements and so are exploited for light gathering and image formation.

In this technical note, motion devices are discussed first in the context of manual positioning. This discussion is equally applicable to automated positioning and motorized drivers …

Details regarding the various factors that impact the motion of these devices and how to characterize their positioning precision and accuracy are the subjects of this technical no …

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.

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, …

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 …