ST Female to male fixed attenautor

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Optical attenuator is a passive device used to reduce the power level of an optical signal. It is generally used in single-mode long-haul applications to prevent optical overload at the receiver. Optical attenuator is widely used in CWDM&DWDM, CATV systems, data center networks, test equipment and other high-power applications. Though its applications range widely, fixed attenuators are most commonly used for test and measurement, optical sensors, and telecommunications applications.

Female to male Fixed attenuators from OMC offer defined control of optical signals in both integrated and add-on products.

Depending on the project or need, fixed attenuators can limit (attenuate) the amount of light passing through to the exact levels your project or application requirement. These precise attenuation levels provide for highly accurate performance.


OMCs ST Female to male fixed attenuator are available for SM UPC(1-25dB) and MM PC (1-25dB)



  • Wide Attenuation Range
  • Low Return Loss
  • Low PDL
  • Polarization Insensitive
  • Various connector type
  • Highly Reliable
  • Complies with industry green initiative such as ROHS


Attenuator Specifications

Items Parameters
Operating Bandwidth: SM MM
1310/1550nm(1200nm-1600nm) 850nm
Return Loss UPC≥50db, APC≥60db PC≥35db
Attenuation Tolerance 1~5db±0.5db &6~25db±10%
Vibration 10~55hz(2hr)
Max Optical Input Power 200mw
Operating temp – 40°C to +85°C



  • DWDM applications
  • Test & measurement
  • Optical sensors
  • Telecommunications applications

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