Title :
Fiber-dispersion-induced signal fading for measuring high-frequency modulation efficiency of an electrooptic phase modulator
Author :
Zhang, Shangjian ; Lu, Rongguo ; Liu, Shuang ; Zhang, Xiaoxia ; Liu, Yong
Author_Institution :
State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A novel method for measuring the modulation efficiency of electrooptic phase modulators is proposed based on the fiber-dispersion-induced signal fading. The fiber dispersion spectrally alters the relative phasing of the phase modulated signal and leads to the fading of the recovered electrical signal, from which the modulation efficiency is obtained in the case of a given fiber dispersion. The frequency-dependent modulation index and half-wave voltage are experimentally measured for a commercial phase modulator, which agree well with the results obtained using the conventional technique.
Keywords :
electro-optical devices; electro-optical effects; optical fibre dispersion; optical modulation; phase modulation; electrical signal; electrooptic phase modulator; fiber dispersion induced signal fading; frequency dependent modulation index; half wave voltage; high frequency modulation efficiency; Frequency modulation; Optical fiber communication; Optical fiber sensors; Optical fibers; Optical mixing; electrooptic modulators; microwave photonics; optical fiber dispersion; phase modulation;
Conference_Titel :
Microwave Photonics, 2011 International Topical Meeting on & Microwave Photonics Conference, 2011 Asia-Pacific, MWP/APMP
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-716-0
DOI :
10.1109/MWP.2011.6088686
