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What is Raman Amplification?

Raman amplification is a phenomenon in non-linear optical mediums where the transfer of power from one optical beam to another happens when it is downshifted in frequency by the energy from an optical phonon.

11 Jul 2013

Indium Gallium Nitride (InGaN) Lasers – Properties and Applications

Indium Gallium Nitride (InGaN) laser is a semiconductor laser. It is also called blue laser as the emitted wavelength of light is perceived as blue colour by the human eye. InGaN is essentially a semiconductor material, which is a mix of gallium nitride (GaN) and indium nitride (InN).

From TRUMPF Ltd. 11 Jul 2013

Optical Atomic Clock Could Provide More Accurate Definition of a Second

An international research team led by the Paris Observatory has developed an optical atomic clock based on strontium.

By Will Soutter 10 Jul 2013

Gallium Nitride Laser – Properties and Applications

Gallium nitride laser is a type of semiconductor laser. Semiconductor lasers that are based on gallium nitride are often called blue lasers, since they produce wavelengths lying between 360 and 480 nm.

From IPG Photonics Corporation 8 Jul 2013

What is a Photomultiplier?

Photomultipliers or photomultiplier tubes (PMTs) belong to a class of vacuum tubes that convert photons into electric signal. PMTs are known for their ultra-fast response and high sensitivity. They are particularly useful in low-intensity applications.

From Vertilon Corp. 8 Jul 2013

What is a Fiber Optic Switch?

Optical flats can be described as an optical grade glass which is polished and made extremely flat on both surfaces, used for determining the flatness of various optical surfaces.

8 Jul 2013

What is a Beam Combiner?

A beam combiner is essentially an arrangement of beam splitters and mirrors. The function of a beam splitter is to divide the incident light into two paths, one by transmission and another by reflection.

From Meller Optics, Inc. 5 Jul 2013

What is a Light Emitting Capacitor (LEC)?

Light emitting capacitor (LEC) is an electroluminescent device in which the active layer is a polymer which is capable of ionic conduction.

5 Jul 2013

Frequency Tripling / Third Harmonic Generation - Principles and Applications

Third harmonic generation may be described as a process in which the frequency of a light source is tripled when it passes through a non-linear medium.

5 Jul 2013