상세정보
학술지
Development and RF Characteristics of Analog 60-GHz Electroabsorption Modulator Module for RF/Optic Conversion
- 발행일
- 200602
- 출처
- IEEE Transactions on Microwave Theory and Techniques, v.54 no.2, pp.780-786
- ISSN
- 0018-9480
- 출판사
- IEEE
- 협약과제
- 05MB1400, 60GHz Pico Cell 통신용 SoP(60GHz 광대역 무선 LAN 기술 개발), 조경익
- 초록
- We developed an analog 60-GHz module for RF/optic conversion by using an electroabsorption modulator (EAM) device associated with a traveling-wave electrode. The impedance matching of the module was accomplished with the 30-廓 termination such that the resonance was precisely located at 60 GHz and the fractional bandwidth at S11 = -15 dB was as large as 1.0 GHz. The RF/optic conversion gain of the EAM device revealed a strong dependence on the input optical power and was closely related with the slope change in the optical transmission characteristic with reverse bias. From the EAM module with the composite-type multiple-quantum-well electroabsorption core consisting of both 8- and 12-nm quantum wells, we obtained the optimal RF/optic conversion gain at the reverse bias between 1.5-2 V in a wide range of input optical power from -6 to +9 dBm. In the same bias range, the third-order intermodulation distortion was < -49.5 dBc as obtained with RF input of -7.5 dBm. © 2006 IEEE.
- KSP 제안 키워드
- 60 GHz, Conversion gain, Fractional Bandwidth(FBW), Multiple-quantum-well(MQW), Optical power, Quantum Well(QW), RF characteristics, Reverse bias, Transmission characteristics, Traveling-wave electrode, Wide range of input