Journal of the Korean Institute of Telematics and Electronics D (전자공학회논문지D)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Optimum design of InGaAsP electroabsorption optical modulator

InGaAsP 전계흡수 광변조기 최적설계에 관한 연구

  • Han, Sub (Dept. of Radio Communications Engineering, Yonsei University) ;
  • Han, Sang-Kook (Dept. of Radio Communications Engineering, Yonsei University)
  • 한섭 (연세대학교 전파공학과) ;
  • 한상국 (연세대학교 전파공학과)
  • Published : 1997.11.01
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Abstract

An optimize delectroabsorption modulator structure is designed for high speed optical communication systems considering the extinction efficiency, operating bandwidth, polarization loss, and wavelength chirping. the operating wavelength region is $1.55\mu\textrm{m}$ and the deep ridge structure is adapted for th eminimum polarization loss. Simulations show that the absorption layer thickness larger than $0.25\mu\textrm{m}$, and the modulator length shorter than $200\mu\textrm{m}$ are required for the bandwidth over 10GHz. To obtain the modulatiron efficiency over 10dB/V, a wavelength detuning needs to be determined less than 40meV.

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