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Development and RF Characteristics of Analog 60-GHz Electroabsorption Modulator Module for RF/Optic Conversion
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- Authors
- Je Ha Kim, Young Shik Kang, Yong Duck Chung, Kwang Seong Choi
- Issue Date
- 2006-02
- Citation
- IEEE Transactions on Microwave Theory and Techniques, v.54, no.2, pp.780-786
- ISSN
- 0018-9480
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Project Code
- 05MB1400, SoP(System on Package) for 60 GHz Pico cell Communication, Cho Kyoung Ik
- Abstract
- 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 Keywords
- 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