[in Chinese]. Effects of weak optical feedback on the performances of coherent optical DPSK systems[J]. Acta Optica Sinica, 1991, 11(6): 564
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The effects of weak optical feedback (WOF) on the bit error rate (BER) of coherent optical differential phase shift key-controll (DPSK) systems are presented. The results indicate that the BER properties of the systems can be improved by WOF under suitable feedback conditions.