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

Volume

20

Issue

24

fYear

2008

Firstpage

2075

Lastpage

2077

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2008.2006509

Filename

4663571