상세정보
학술지
Analog Performance of Multiple-quantum-well Electroabsorption Modulator
- 저자
- Y. S. Yun, Y. W. Choi, J. D. Chung, 김제하
- 발행일
- 200509
- 출처
- Optical and Quantum Electronics, v.37 no.11, pp.1025-1031
- ISSN
- 0306-8919
- 출판사
- Springer
- 협약과제
- 06MB1400, 60GHz Pico Cell 통신용 SoP, 유현규
- 초록
- Linearity is an important property of optical devices in analog communication systems. In this paper, we study the 3rd-order intermodulation distortion (IMD3) of an InP/InGaAsP multiple-quantum-well (MQW) traveling-wave type electroabsorption modulator (TW-EAM). We observe that dips in the measured IMD3 results are different from those by general transfer curve of electroabsorption modulators (EAMs). In order to verify it, we analyse the phenomena by using the absorption coefficients according to a wavelength and a bias voltage. Thus, we can see that the dips result from the quantum-confined Stark effect (QCSE). We propose the method to enhance linearity of MQW-EAMs by using this effect in addition to the E/O response. © Springer 2005.
- KSP 제안 키워드
- Absorption Coefficient, Analog Performance, Communication system, Multiple-quantum-well(MQW), Optical devices, Quantum Well(QW), Quantum-confined Stark effect(QCSE), Traveling wave, bias voltage, electroabsorption modulator(EAM), intermodulation distortion