Title :
An Interferometric Method for High Extinction Ratio Measurements With 60-dB Dynamic Range
Author :
Ozdur, Ibrahim ; Ozharar, Sarper ; Quinlan, Franklyn ; Mandridis, Dimitrios ; Delfyett, Peter J.
Author_Institution :
Coll. of Opt. & Photonics, Univ. of Central Florida, Orlando, FL
Abstract :
In this letter, we introduce a novel interferometric method for dynamic extinction ratio measurement of temporally demultiplexed pulses. A high extinction intensity modulator is used in order to temporally demultiplex the pulse train. The resulting extinction ratio is measured to be 44 dB. Our method has a dynamic range of ~60 dB. To our knowledge, this is the highest dynamic extinction ratio measurement method reported to date for high-speed optical modulators.
Keywords :
chirp modulation; extinction coefficients; optical modulation; optical phase shifters; optical variables measurement; phase shifting interferometry; time division multiplexing; dynamic extinction ratio measurement; high extinction intensity modulator; high-speed optical modulators; interferometric method; optical pulse measurements; pulse train; temporal demultiplexing; time-division multiplexing; Interferometry; optical pulse measurements; time-division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.2006509
