Inline Variable Optical Attenuator (VOA) Adjustable Singlemode Fiber Attenuator 0-60dB
Fiber attenuators, also called optical attenuators, are passive devices used to reduce the power level of an optical signal. Since too much light may saturate the fiber optic receiver, optical attenuators are often deployed in the system to reduce the light power and achieve the best fiber optic system performance. Generally, multimode systems do not need attenuators as the multimode sources, even VCSELs, rarely have enough power output to saturate receivers. Instead, for single-mode systems, especially the long-haul DWDM network links, fiber optic attenuators are necessary for balancing the optical power during the transmission.
Inline Variable Optical Attenuator from HeyOptics are designed to give the accurate attenuation required by the connected device and in a wide range attenuation from 0dB to 60dB by turning the thumb screw. It can terminated with many connectors, such as SC/UPC, SC/APC, ST/UPC, FC/UPC, FC/APC, LC/UPC, LC/APC etc. And the fiber cable is used ruggedized 2.0mm fiber with different lenghts for options.
How to adjust the Inline Variable Optical Attenuator
Features:
Low back reflection, insertion loss
Low polarization dependent loss (PDL)
Environmentally stable
Contaminant and scratch free ferrule
Multimode attenuators available upon request
100% tested in factory
Manufactured with metal-ion doped optical fiber
Dimension(LxWxH ): 26x8x18mm
Specifications:
| Operating Wavelength | nm | 1310 or 1550 or 1490 or 1585 | |
| Bandwidth | nm | ±40 | |
| Insertion Loss | dB | Typ:0.8 Max:0.9 | |
| Attenuation range | dB | 0.8~60 | |
| PDL | dB | ≤0.1 | |
| Return Loss | dB | ≥60 | |
| Attenuation Precision | dB | ≤0.02 | |
| Fiber Type | SMF-28e | ||
| Fiber Length | m | ≥1.0 | |
| Transmission Power | mw | ≤500 | |
| Operation Temperature | ℃ | -20~+70 | |
| Storage Temperature | ℃ | -40~+85 | |