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A TWA Optical Receiver with Hybrid Integrated InP Detector
Hyeon Cheol Ki,Carl S.P. Chun,Joy Laskar,Nan Marie Jokerst,Martin A.Brooke,Yong-Sun Yoon,Jin Yeong Kang,Dong Sung Ma 한국정보과학회 1999 Journal of Electrical Engineering and Information Vol.4 No.6
To investigate the usefulness and feasibility of the TWA structure for low cost wide band system applications we designed a TWA optical receiver using low cost commercial process. The measured results show it is possible to achieve 18 ㎓ bandwidth with 7㏈ gain using low cost GaAs MESFET process with 20 ㎓ cut-off frequency. We also try, for the first time, the operation of an hybrid integrated OEIC using a fabricated TWA optical receiver and a thin film photo-detector 50㎛ in diameter. These results demonstrate that it is feasible to applicate TWA for the low cost wide band systems and to hybrid integrate wide band MMIC with thin film detectors for inexpensive high speed OEICs.