High-frequency characterization of an optical phase modulator with phase modulation-to-intensity modulation conversion in dispersive fibers
作者： ShangJian Zhang , RongGuo Lu , DeJun Chen , Shuang Liu , Yong Liu
DOI: 10.1007/S11434-012-5210-3
关键词:
摘要: We propose a new method for characterizing optical phase modulators based on modulation-to-intensity modulation (PM-to-IM) conversion in dispersive fibers. The fiber dispersion spectrally alters the relative phasing of phase-modulated signal and leads to PM-to-IM conversion, which is extended measure efficiency modulators. In demonstration, frequency-dependent index half-wave voltage are experimentally measured commercial modulator. Compared with conventional methods, proposed works without restriction small-signal operations, allows swept-frequency measurement high resolution accuracy by using vector network analyzer.
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