Patchcord type fixed attenautor

Patchcord type fixed attenautor

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Patchcord type fixed attenautor

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.

Patch cord type 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.

OMC fixed attenuators are used in applications where a pre-determined amount of light loss is specified. Though its applications range widely, fixed attenuators are most commonly used for test and measurement, optical sensors, and telecommunications applications.

Attenuator Specifications

  • Operating Bandwidth: 1310nm,1550nm, 1310nm&1550nm
  • Insertion Loss: SM<0.20db, MM<0.35db
  • Return Loss: UPC≥50db, APC≥60db
  • Polarization Dependent Loss: ≤0.2db
  • Cable option: 2mm,0.9mm,3.0mm cable etc
  • Connectors: SC,FC,LC,ST
  • Attenuation Tolerance:  1~10db ≤0.5db; 11~30db≤1dB.
  • Vibration: ≤0.1db change between 10~55hz (2hr)
  • Drop: +/-0.2dB after 8 drops (3axes) from 1.8 Meter onto a hard surface.
  • Operating temp:- 40°C to +85°C(≤0.2db insertion loss)


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



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