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

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

Chirping Characteristics Analysis of Electroabsorption Modulators by Riber Transmission Simulations

전송 모의실험을 통한 전계흡수 광변조기의 파장왜곡 특성해석

  • Han, Sub (Dept. of Radio Communications Engineering, Yonsei University) ;
  • Kim, Kyung-Hyun (Dept. of Radio Communications Engineering, Yonsei University) ;
  • Han, Sang-Kook (Dept. of Radio Communications Engineering, Yonsei University)
  • 한섭 (연세대학교 전파공학과) ;
  • 김경현 (연세대학교 전파공학과) ;
  • 한상국 (연세대학교 전파공학과)
  • Published : 1998.05.01
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Abstract

The chirping characteristics of InGaAsP electroabsorption modulatiors have been analyzed. The effective .alpha. parameters for large signal modulation were estimated by comparing the pulse shape after fiber transmission with constant chirping assumption.We investigated the structure and the operating condition of the modulator to improve the chirping characteristics. The .alpha. parameters were calculated as the function of wavelength detuning and the bias voltage. To minimize the chirping performance, high bias voltage and a small wavelength detuning and the bias voltage. To minimize the chirping performance, high bias voltage and a small wavelength detuning were preferred. An negative .alpha. value is achieved at the wavelength detuning below 30meV with a proper bias voltage so that pulse compression effect was expected.

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