An optical photo-detector using a distributed amplifier and P-I-N photodiode combination

A new high speed photodetector has been fabricated by using a distributed amplifier and p-i-n photodiode combination. A 3 dB bandwidth of 17 GHz was achieved. The noise level and detection sensitivity have been measured and an average input noise current of 20 pA/Hz was achieved. This corresponds to an optical sensitivity of -21 dBm.<
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