An Interferometric Method for High Extinction Ratio Measurements With 60-dB Dynamic Range


ÖZDÜR İ. T. , Ozharar S., Quinlan F., Mandridis D., Delfyett P. J.

IEEE PHOTONICS TECHNOLOGY LETTERS, cilt.20, no.24, ss.2075-2077, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 20
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1109/lpt.2008.2006509
  • Dergi Adı: IEEE PHOTONICS TECHNOLOGY LETTERS
  • Sayfa Sayıları: ss.2075-2077

Özet

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 similar to 60 dB. To our knowledge, this is the highest dynamic extinction ratio measurement method reported to date for high-speed optical modulators.