Find reliable adjustable attenuators with 0-90dB range, stepwise control, and custom options. Mouser is an authorized distributor for many RF Attenuators manufacturers, including Analog Devices, MACOM, Mini-Circuits, pSemi, Qorvo, Skyworks, Susumu & more. RF attenuators are devices used to reduce the power level of radio. We offer a robust portfolio of in-stock, adjustable RF attenuators and phase shifters for multiple applications, including test instrumentation, cellular communication, wireless communications, satellite communication and more. Basic types of fixed attenuation include single mode, dual window and multimode in D4/PC, FC, FC/UPC, MU, SC, SC/APC and UPC, ST and ST/UPC style connectors. The attenuation value ranges from 0 dB to 69 dB with a frequency range from 0 to 86 GHz. Shop DigiKey's large in-stock selection of Attenuators. View inventory, pricing and order now for same day shipping!GET IN TOUCH! ACST GmbH reserves the right to make changes to the information contained herein without notice. Sign up to receive ACST news and updates delivered right to your inbox.
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This hand-held Fiber Optic Variable Attenuator & Optical Power Meter is a precision handheld instrument commonly used for testing single mode fiber systems for optical system margin and linearity. It is equipped with two additional, independent optical power meters and based on electrically controlled variable optical attenuator (VOA) modules. Attenuators are essential building blocks when developing test stations for applications such as bit-error-rate (BER) testing of transmission cards or gain and noise characterization of erbium-doped fiber amplifiers (EDFAs). Attenuators emulate signal loss, balance power levels, and protect sensitive devices during testing. This allows output power, for example, to be stabilized at one value even when input power is unstable.
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Optical attenuators can take a number of different forms and are typically classified as fixed or variable attenuators. What's more, they can be classified as LC, SC, ST, FC, MU, E2000 etc. according to the different types of connectors. Fixed optical attenuators used in fiber optic systems may use a variety of principles for their functioning. Preferred attenuators use either doped fibers, or mis-aligned splices, or total power since both of thes.
EVOA is a device used to reduce the power level of an optical signal in an optical fiber. EVOA stands for Electronically Variable Optical Attenuator. The attenuator circuit will allow a known source of power to be reduced by a predetermined factor, which is usually expressed as decibels. Key requirements include minimal effect on the beam profile, low wavelength and polarization dependence, and sufficient power handling capability. EVOA operates by moving an obstructing element into the. In many cases, attenuation is an exponential function of the path length through the medium. In optics and in chemical spectroscopy, this is known as the Beer–Lambert law.
Optical attenuators are commonly used in, either to test power level margins by temporarily adding a calibrated amount of signal loss, or installed permanently to properly match transmitter and receiver levels. Sharp bends stress optic fibers and can cause losses. If a received signal is too strong a temporary fix is to wrap the cable around a pencil until the desired level of is achieved. However, such arrangements are unreliable, since the stressed fiber tends to.
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