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Chemical Oxygen Iodine Lasers (COIL) - Properties, Development, and Commercial and Military Applications

Chemical oxygen iodine laser (COIL) is an infrared chemical laser that has been developed at the Air Force Research Laboratory in 1977, primarily for military applications. It outputs a beam of infrared at a wavelength of 1.315 µm.

18 Jun 2013

$What is a Diffraction Grating?$

What is a Diffraction Grating?

Diffraction grating comes into the picture when there is a need for separate light of different wavelengths with high resolution. A diffraction grating is a multiple slit arrangement made by etching lines on a transparent flat piece of material.

From Wasatch Photonics, Inc. 18 Jun 2013

What is a Fiber Optic Coupler?

A fiber optic coupler may be described as an optical element that is used in fiber optic systems that have one or more input fibers and several output fibers. A coupler basically brings together two or more fibers cores to interact with each other.

From Gould Fiber Optics 18 Jun 2013

What is a Nernst Lamp?

Nernst lamps are thermal light sources that emit radiation near the infra red region of the electromagnetic spectrum.

18 Jun 2013

What is a PLED (Polymer LED)?

Polymer light emitting diode (PLED) is an LED whose emitting layer is made of a polymer material. This could make a flexible and easy-to-manufacture light source.

18 Jun 2013

What is a Collimator?

A collimator may be described as a device that focuses or narrows a light beam or a stream of particles to be aligned in a different direction or reduce its cross section. The collimator focuses a beam of light and aligns it to a different direction, making it parallel or collimated.

From IPG Photonics Corporation 10 Jun 2013

What is an Optical Chopper?

An optical chopper is a device that interrupts a light beam at periodic intervals. By varying the frequency of operation of the chopper it can be used for various applications. The first ever optical chopper was invented in the 1800s and was used to measure the speed of light.

From Edmund Optics 10 Jun 2013

What is an Optical Amplifier?

Optical amplifiers are devices that amplify an optical signal without converting it into an electric signal. Optical amplifiers are of two kinds: laser amplifiers and feedback amplifiers. Laser amplifiers do not have an optical cavity, while the feedback amplifiers consist of a suppressed cavity.

From Thorlabs, Inc. 10 Jun 2013

Holmium YAG Lasers - Properties and Applications

Holmium YAG laser is a solid state laser, where YAG (Yttrium Aluminum Garnet) crystals are doped with rare-earth holmium. The first experiments with doping the YAG laser with holmium were carried out during the 1960s.

From Elen Group 5 Jun 2013

Ytterbium Doped Glass Lasers – Properties and Applications

Ytterbium doped glass laser is a solid state laser doped with ytterbium. Ytterbium and other rare earths are used to dope the active lasing mediums of solid state lasers. Doping with ytterbium enhances the efficiency of the lasers and generates short pulses.

From L3Harris Technologies, Inc. 5 Jun 2013