한국광학회:학술대회논문집 (Proceedings of the Optical Society of Korea Conference)
- 한국광학회 2002년도 제13회 정기총회 및 2002년도 동계학술발표회
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- Pages.192-193
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- 2002
GaAs/AlGaAs을 이용한 전계광학 변조기의 위상변조 효율
Phase Modulation Efficiency of the Electrooptic Modulator using GaAs/AlGaAs
초록
In this paper we investigate the phase modulation efficiency in the electrooptic phase modulator using PPpinNN GaAs/AlGaAs W-type waveguide. The phase change is affected by the refractive index change taking place inside the depletion region. The behavior of the modulator can be understood in terms of two electric field-related and two carrier-related effects linear electrooptic, quadratic electrooptic, plasma, and bandgap shift. As a result, the phase modulation efficiency was measured about 34.6(
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