Fibre Attenuator

Fibre Attenuator

An attenuator is an electronic device that reduces the amplitude or power of a signal without appreciably distorting its waveform. They are usually passive devices made from simple voltage divider networks. Fixed attenuators in circuits are used to lower voltage, dissipate power, and to improve impedance matching. In measuring signals, attenuator pads or adaptors are used to lower the amplitude of the signal a known amount to enable measurements, or to protect the measuring device from signal levels that might damage it. Attenuators are also used to 'match' impedances by lowering apparent SWR.

We offer 1 ~ 20dB and standard attenuation values at 3, 5, 10, 15 and 20 dB with FC, ST, SC or LC type connectors.


  • Low back reflection
  • High power endurance
  • Precise control of attenuation range
  • Easy installation
  • Environmentally stable
  • Customer design specification
  • Readily panel mountable

Options Available:

Build-out Attenuator (Fixed Type)

Hybrid Attenuator / Adapter

In-Line Built-out Attenuator


Mode Type: SM, MM
Operating wavelength (nm): 1310, 1550
MAX PDI (dB): < 0.1
Attenuation Value: ± 0.5dB ( < 10dB); ± 1.0dB ( > 10dB)
Return Loss (dB): UPC > 55db, APC> 60dB, PC>45dB
Operating Temperature: -30 ~ 75°C
Storage Temperature: -40 ~ 85°C
Connector Type: SC, FC, ST, LC