Tutorials

Fiber Optic Basics

Tutorials

Optical fibers are circular dielectric wave-guides that can transport optical energy and information. They have a central core surrounded by a concentric cladding with slightly lower refractive index.

Light Collection and Systems Throughput

Tutorials

This discussion is restricted to the general use of Incoherent Light Sources, such as arc lamp or quartz tungsten halogen sources. Diffraction and coherent effects are excluded. The emphasis throughout this section will be on the collection of light.

Laser Diode Technology

Tutorials

Low-power laser diodes come in a variety of packages. Most have a monitor photodiode integrated with the laser diode. Generally, laser diodes emit light from both ends of their cavity. By monitoring the rear facet output beam of the laser diode, one ...

Diffraction Grating Physics

Tutorials

A typical diffraction grating consists of a substrate with a large number of parallel grooves ruled or replicated in its surface and overcoated with a reflecting material such as aluminum. The quality and spacing of the grooves are crucial to the per...

Optical Power Measurement

Tutorials

When a photon hits the photodiode material, it may generate an electron-hole pair depending on the quantum efficiency of the device. Quantum efficiency is dependent on many factors, but in general if the energy of the photon, E = hv, is greater than ...

PMManager™ Power Meter Application Software

Tutorials

PMManager is a powerful application software controlling and taking measurement data, compatible with models 1919-R, 843-R-USB and 841-PE-USB.

Introduction to Polarization

Tutorials

The interaction of light with the atoms or molecules of a material is wavelength dependent. A consequence of this dependence is the resonant interactions related to material dispersion. Another consequence of such resonant interaction is birefringenc...

Vibration Control Definitions of Characteristics

Tutorials

This glossary covers the important terms related to vibration control.

Getting Light into a Monochromator

Tutorials

In this section we give a brief introduction to getting light into a monochromator, and how much you can expect to get out. While the emphasis is on coupling Oriel Light Sources to Oriel Monochromators, the same general principles apply to collecting...

Polarization in Fiber Optics

Tutorials

A beam of light can be thought of as being composed of two orthogonal electrical vector field components that vary in amplitude and frequency. Polarized light occurs when these two components differ in phase or amplitude. Polarization in optical fibe...
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