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Variable Optical Attenuator: Feel The Power

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Variable Optical Attenuator: Feel The Power

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  • Author: Marie-Hélène Côté
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). In order to increase the flexibility of our IQS-3150 Variable Optical Attenuator, we have developed an option that integrates both a coupler and a power meter into the one-slot attenuator module. This allows users to set the output power level directly, thus improving the overall testing efficiency. By allowing users to monitor the attenuator’s output power in real time, the internal power meter can also be used to compensate for any power fluctuation generated from the source, while maintaining stable conditions at the device under test.

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