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 ...

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.

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...

Introduction to Solar Radiation

 

Tutorials

Radiation from the sun sustains life on earth and determines climate. The energy flow within the sun results in a surface temperature of around 5800 K, so the spectrum of the radiation from the sun is similar to that of a 5800 K blackbody with fine s...
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