Performance of preamplified direct detection systems under influence of receiver noise
- 1 December 1994
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 6 (12) , 1488-1490
- https://doi.org/10.1109/68.392202
Abstract
We present new results for optically preamplified direct detection systems where the receiver thermal noise is significant. The results obtained with this model is in good agreement with measured results from a system experiment at 10 Gbit/s. It is found that an optical gain of 30 dB is sufficient to keep the penalty due to thermal noise below 0.1 dB for a simple receiver consisting of a photodiode loaded with a broadband amplifier with 50-/spl Omega/ input impedance.Keywords
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