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Fiber Optic Attenuators

Thorlabs has a wide variety of single mode (SM), multimode (MM), or polarization-maintaining (PM) variable optical attenuators (VOAs). These VOAs are available unterminated or with FC/PC or FC/APC connectors. In addition, we offer electronic VOAs that provide manual or electronic control of the output power. Our fixed optical attenuators are fiber connectors that can be attached to an FC/PC or FC/APC single mode fiber patch cable. We also offer fixed optical attenuators for multimode fibers with SMA connectors.