Ultra low loss (VOA)

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IDIL Fibres Optiques supplies a continuous Variable Optical Attenuator (VOA) with a high dynamic range and an ultra low insertion loss.

Our VOA is tuned thanks to a micrometric screw which allows an excellent repeatability but also a very high resolution since it can be over 30 dB. IDIL Fibres Optiques developed two mechanics regarding VOA.

Actually, our product is both compatible with single-mode fibers and multi-mode fibers. The packaging is the same in both cases. VOA provided by IDIL Fibres Optiques has been designed to be used within the context of telecommunications and instrumentation applications in particular. However, beyond those areas, our product leads to other various applications.

Furthermore, IDIL Fibres Optiques can provide fixed attenuators. Those attenuators were designed thanks to a technique entirely based on optical fibers which allows a very good behavior towards power. Thus our fixed attenuator withstands power over 5 W.


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Wavelength 500 to 2000 nm
Maximum attenuation > 30 dB or custom
Insertion loss ≤ 0.05 dB
Resolution ≤ 0.05 dB (0 -10 dB)
PDL ≤ 0.1 dB (0 -10 dB), ≤ 0.3 dB (10 -30 dB)
PMD ≤ 0.1 ps
Return loss ≤ 60 dB
Fiber type SMF-28, MMF, PM, other
Connectors FC, LC, SC, SMA, ST, MU, E2000, other
Buffer From 900 µm to 2.8 mm
Operating temperature range From -5°C to + 65°C
Storage temperature range From -40°C to + 85°C
Power handling Up to 5 W
Dimensions 65 x 44 x 15 mm
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  • Telecommunications
  • CATV
  • EDFA
  • High power source
  • Instrumentation
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