What is an Optical Attenuator ?

In electrical systems, an Attenuator is usually installed in the passive network for reducing the amplitude of a signal without appreciably distorting the waveform. Similar to electrical system, an Optical Attenuator is installed in optical systems for reducing the amplitude of a signal without appreciably distorting the waveform.

Attenuation : The decrease in signal strength along a fiber optic waveguide caused by absorption and scattering.Attenuation is usually expressed in dB/km.

Plank Attenuator is your ultimate solution for Telecommunications, Fiber-to-the-home, Local Area Network (LAN), Optical fiber sensors, and Test equipment
All our Attenuator products come with Low insertion tolerance, Low return loss, Environmental stable and Easy to handle features to meet the your strict requirements.

For further information, please get the specification sheets at download zone.

Plank Optical Attenuator

Fiber Optic Attenuators Plug-In and Fixed In-line Types

Specifications:


Parameter

Fixed In-Line Type

Plug-In Type

Operation Wavelength (nm)

SM : 1310 & 1550
MM : 850

Attenuation (dB)

1 to 20

 1 to 5

Bandwidth (nm)

±   10

 ±   25

Attenuation Accuracy (dB)

SM : ≤0.5   (for   1 ~ 10)
         ≤  1    (for 10 ~ 20)
MM : ≤  1    (for   1 ~ 10)
          ≤ 2.0   (for 10 ~ 20)

 SM : ± 15%  or  ± 10%
         
MM : ±  1.0    dB

Return Loss(dB)

>55

 

Polarization Stability(dB)

0.15

0.25

Operation Temperature( °C)≤Ф

- 40 to + 70 *

Temperature Coefficient (dB / °C)

0.002

Storage Temperature( °C)

- 50 to + 85

Package Dimensions (mm)

 30(Ф) x 54 (L)
  3.5(Ф) x 65 (L)
95(L) x 12 (W) x 10 (H)

FC, ST, SC
LC,MU

* Bare fiber: -40 to +70, other package: 0 to +70