English
FC-FC Variable in-line Optical Attenuators (Adjustable in-line optical attenuator) are used to permit dynamic control of
optical power levels in a fiber.It uses for precisely balancing the signal strengths in fiber circuits or balancing an
optical signal when evaluating the dynamic range of the measurement system. With turning the knob by hand,
attenuation value can be set up to 55dB.
Variable in-line attenuator comprises a dual fiber collimator and a reflection component separated by a linear
moveable ND filter. The collimator includes a ferrule with dual fibers therein, and a GRIN lens spaced from the
ferrule with a distance in compliance with the distance between the reflection component and the GRIN lens
| Parameter | Multimode | Multimode | Singlemode | Singlemode | Singlemode |
| Operating Wavelength | 850nm | 1300nm | 1310nm | 1550nm | 1310nm and 1550nm |
| Wavelength Range | 820nm - 880nm | 1270nm - 1330nm | 1270nm - 1350nm | 1510nm - 1590nm | 1270nm - 1350nm and 1510nm - 1590nm |
| Attenuation Range | 1.0dB - 55dB | 1.0dB - 55dB | 0.6dB - 55dB | 0.6dB - 55dB | 0.8dB - 55dB |
| Insertion Loss | ≤1.0dB | ≤0.6dB | ≤0.6dB | ≤0.6dB | ≤0.8dB |
| Return Loss | ≥35dB | ≥35dB | ≥50dB | ≥50dB | ≥50dB |
| Fiber Type | 50/125um,62.5/125um | 9/125um | |||
| Max. Power | 300mW | ||||
| Polarization-Dependent Loss | ≤0.15dB | ||||
| Operating Temperature | 0℃ - +70℃ | ||||
| Storage Temperature | -40℃- +85℃ | ||||
