Swept Frequency Measurement of Electrooptic Phase Modulators Using Dispersive Fibers

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（8）
• 页码范围: 146-148
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/8/084217

摘要

A novel method based on the use of dispersive fibers is proposed and experimentally demonstrated for measuring the high-frequency modulation index,as well as the half-wave voltage,of electro-optic phase modulators.Fiber dispersion causes the phase modulated signal to become intensity modulated,which a11ows for the high resolution swept frequency measurement of phase modulators,using a vector network analyzer.The proposed method holds without the restriction of small-signal approximation,which is applicable for the measurement at different driving levels and operating wavelengths.