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 :

Unifiber, a Hi-Tech company specialized in developing and manufacturing optical fiber products. Based on strong hardware development, we are offering the most cost-effective cabling solutions on optical networking, data center, FTTx and OEM solution.

Our featured products includes FTTA Waterproof Connectors, indoor/outdoor armored cable assembly, Pre-terminated Multifiber Cables, FTTH flat drop patch cable, LC Uniboot, 6~12 fiber pigtails and MTP/MPO series. We can also provide adapter, attenuator, fused coupler, PLC Splitter, WDM and various of patch panel, terminal box, ODF and tool series products..

Providing the highest quality products and services is always the most important principle to Unifiber, All our products are subjected to strict test according to BELLCORE standard and fully RoHS compliant. Through the efforts of our team, Unifiber has obtained a widespread acknowledgement, Our products continue to enjoy growing acceptance both in China and abroad.