Optical power in the fW range can be easily detected using avalanche photodiodes. For easy plug&play application, we are introducing our A-CUBE APD modules: these small modules detect light quickly and reliably in the spectral range from 400 nm to 1700 nm.
The heart of the A-CUBE is a low-noise Si or InGaAs avalanche photodiode with a preamplifier and an integrated high-voltage power supply. Temperature compensation is also integrated that allows operation across a wide temperature range at a constant amplification.
InGaAs detectors allow measurements in the spectral range between 1000 nm and 1650 nm; the silicon versions allow measurements between 400 nm and 1100 nm. Both versions are available in different bandwidths: from DC to 25 MHz.
This shielded housing with an edge length of just 40 mm can be integrated into optical benches with a single click. It only requires an additional 12 V power supply to operate the APD. With this setup, detection of the smallest amount of light is child’s play. The A-CUBEs are available on an optional basis with an FC connection.
