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You are here:   » Products » Optical Technologies » Components » Fiber Optics » Attenuators » Fixed Attenuators » Fixed Neutral Density Attenuators Expanded Beam Style

Fixed Attenuators

Fixed Neutral Density Attenuators Expanded Beam Style

Key Features

  • Mode independent attenuation level
  • Rugged and compact size
  • Pigtail and receptacle styles
  • Removable filter versions
  • Wide wavelength range
  • Singlemode, polarization maintaining and multimode fiber versions


OZ Optics line of expanded beam style neutral density fixed attenuators are ideal for multimode applications and for applications where attenuating fibers are not available or usable. These attenuators provide mode independent fixed attenuation when used with multimode fibers. The insertion losses will not depend on how the light is launched into the fiber. This is a significant advantage over other attenuator designs. The attenuators consist of a set of collimating and focusing optics and a central baseplate containing the filter. They can be ordered in receptacle or pigtail styles.


  • CATV, LAN and telecommunications use
  • Receiver padding
  • Test and measurement
  • Optical power equalization
  • Research & design

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