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  • What is an Optical Fiber Isolator?
    Article - 13 Jun 2013
    Optical isolators are optical elements which allow light to propagate in only one direction. The propagation of light in one single direction is required in order to prevent optical back scattering or...
  • What is a Halogen Lamp?
    Article - 13 Jun 2013
    A halogen lamp is an incandescent light source consisting of a tungsten filament enclosed in an environment of an inert gas and a small amount of a halogen (bromine or iodine).
  • What is a Fiber Optic Coupler?
    Article - 13 Jun 2013
    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...
  • What is an Optical Bandpass Filter?
    Article - 12 Jun 2013
    Optical bandpass filters are filters that allow only a certain bandwidth of light and block the others above and below the specified bandwidth.
  • What is an Optical Longpass Filter?
    Article - 12 Jun 2013
    An optical longpass filter is defined as an optical filter that passes all wavelengths from a given wavelength to the red of that wavelength.
  • What is an Absorptive Filter?
    Article - 12 Jun 2013
    Absorptive filters are essentially glass filters that are dyed or pigmented gelatin resins. Like any other filter, absorptive filters allow light of certain wavelengths to pass through. These are...
  • What is a Dichroic Filter?
    Article - 12 Jun 2013
    Dichroic filters are filters that optic filters that are placed at an angle of 45° to the light source, causing the light to travel in a different direction. Dichroic is a Greek word meaning...
  • What is an Opto-Semiconductor?
    Article - 12 Jun 2013
    Opto-semiconductors are semiconductors that are work by absorption and emission of light. The p-n junctions are the important part of these devices. Photodiodes, LEDs, solar cells and semiconductor...
  • What is a Photomultiplier?
    Article - 11 Jun 2013
    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...
  • What is a Beam Dump?
    Article - 11 Jun 2013
    A beam dump maybe defined as a device used for absorbing the energy from photons or other particles.

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