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Linearity enhancement of electroabsorption optical modulator by absorption variation in propagation direction
Author(s) -
Lee ChangHyun,
Han SangKook
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19990705)22:1<30::aid-mop8>3.0.co;2-3
Subject(s) - linearity , microwave , materials science , absorption (acoustics) , optics , optoelectronics , reduction (mathematics) , telecommunications , physics , electronic engineering , engineering , geometry , mathematics
We propose a new electroabsorption modulator (EAM) structure where the linearity is improved by means of appropriately changing the absorption profile along the device length. As a practical implementation, a selective‐area‐grown MQW–EAM was investigated. Compared with a conventional EAM, the linearity was improved by 3 dB reduction in IMD2 and 5 dB reduction in IMD3. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 22: 30–35, 1999.