MVOA Inline Variable Optical Attenuator Manual Adjustable 1310nm 1550nm
Single Mode Variable Optical Attenuators allow the user to manually vary the attenuation of the signal in the fiber as it is transmitted through the device. These VOAs can be used to to precisely balance the signal strengths in fiber circuits or to balance an optical signal when evaluating the dynamic range of the measurement system. The maximum specified attenuation is achieved within 10 turns of the adjustment screw. All in-line VOAs have single mode fiber pigtails with a Ø3 mm jacket. The VOAs are offered unterminated or terminated with 2.0 mm narrow key FC/PC or FC/APC connectors.Each attenuator has a lens to collimate the light from the input fiber. A blocking device or window can be manually adjusted by a screw Then, a second lens is used to couple light into the output fiber. Thus, the coupling efficiency is changed until the desired attenuation is obtained.
Features:
Single mode,inline,variable fiber optical attenuators
Up to 60 dB attenuation
Available with no connectors,FC/PC connectors,or FC/APC connectors
Application:
Telecommunication networks
Optical communications system
CATV networks
Technical Specification :
| parameter | SM(9/125) | MM(50/125,62.5/125) | ||
| Attenuation values | 1dB to 20dB(1dB step),25dB,30dB | 1dB to 25dB(1dB step) | ||
| attenuator Wavelength | 1310nm & 1550nm | 850nm &1300nm | ||
| Attenuation Tolerance (dB) | 1-10dB<±1.0dB ( typical ) standard | 2dB,5dB,10dB<±1.0dB(typical ) standard | ||
| 11-25dB<±10% ( typical ) standard | 15dB<±10% ( typical ) standard | |||
| 1-10dB<±0.5dB ( typical ) premium | 2dB,5dB,10dB<±0.5dB(typical ) premium | |||
| 11-25dB<±5% ( typical ) premium | 15dB<±5% ( typical ) premium | |||
| attenuator Return Loss | PC | ≥45 dB |
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| UPC | ≥55 dB | |||
| APC | ≥65 dB | |||
| Attenuator mode | Fixed type, male to female type, In-line type, Variable type | |||
| attenuator Operating Temperature | -40°C~+75°C | |||
| attenuator Storage Temperature | -40°C~+85°C | |||
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