Impedance Matching Approach to 60 GHz Band Analog Traveling Wave Electro-Absorption Modulator (TWEAM) Module

A traveling wave electro-absorption modulator (TWEAM) module for 60 GHz band radio-over fiber link was developed. The fractional bandwidth at the operating frequency can be controlled with the termination resistance and it was shown that to estimate the fractional bandwidth, the model should contain...

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Bibliographic Details
Main Authors: Kwang-Seong Choi, Yong-Duck Chung, Young-Shik Kang, Dong-Suk Jun, Byoung-Tae Ahn, Jong-Tae Moon, Jeha Kim
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
E/O response
Electric resistance
Electric variables measurement
Electrical resistance measurement
Frequency estimation
Impedance matching
Laser modes
Matched filters
Optical design
Packaging
TWEAM module
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Summary:A traveling wave electro-absorption modulator (TWEAM) module for 60 GHz band radio-over fiber link was developed. The fractional bandwidth at the operating frequency can be controlled with the termination resistance and it was shown that to estimate the fractional bandwidth, the model should contain the effect of packaging parasitics. Impedance matching in the module was achieved with the double stub design and the laser trimming process. The measured electrical-to-optical (E/O) response showed the increased in the response near 60 GHz. In addition, a filter as an implement of the impedance matching was proven to be an effective solution.
DOI:10.1109/MWP.2005.203561