A Novel Optical Direct-Detection I/Q Up-Conversion with I/Q Imbalance Compensation via Gram-Schmidt Orthogonalization Procedure

Abstract

We proposed RF detect-detection vector signal generation using optical I/Q up-conversion. The Gram-Schmidt orthogonalization procedure is employed to compensate I/Q imbalance. After transmission over 100-km SMF, penalties of 5-Gb/s QPSK signals can be ignored.