Precise Optical Modulation and Its Application to Optoelectronic Device Measurement

Optoelectronic devices which play important roles in high-speed optical fiber networks can offer effective measurement methods for optoelectronic including modulators and photodetectors. Precise signal modulation is required applications. This paper focuses on precise their application to device measurement. Optical using electro-optic effect offers control of lightwaves wideband signals. As examples, this describes frequency response photodetectors high-precision amplitude wavelength domain filters fast sweep. be achieved by active trimming compensates structure imbalance due fabrication error, where preciseness described on-off extinction ratio. A Mach-Zehnder modulator with sub interferometors high extinction-ratio intensity modulation, used would also useful multi-level schemes. To investigate impact finite ratio duobinary small operation was demonstrated. For analysis, single sideband shifts frequency, generation stimulus Rapid performed an sweeper consisting integrated arbitrary waveform generator a source chirp signal.