Title: A Passive Broadband Impedance Equalizer for Improving the Input Return Loss of Electro-Absorption Modulators
Authors: Lim, Cheng Guan
Department of Photonics
Keywords: Electro-absorption modulator (EAM);input return loss;impedance equalizer
Issue Date: 1-Mar-2009
Abstract: Based on the context of an electro-absorption modulator integrated laser and the industry's standard 7-pin package having a RF connector, a complete module design that incorporates a simple yet effective broadband impedance equalizer to improve the input return loss of electro-absorption modulators (EAM) is proposed. The passive broadband impedance equalizer effectively reduces the input return loss of the EAM from between -9.84 and -5.26 dB to between -11.5 and -9.35 dB over a frequency range from 4.4 to 12.2 GHz without having to add a resistor in series with the EAM or reducing the EAM absorption-layer capacitance from the value that was optimized for optimal optical performance.
URI: http://dx.doi.org/10.1109/JLT.2008.2004969
ISSN: 0733-8724
DOI: 10.1109/JLT.2008.2004969
Volume: 27
Issue: 5-8
Begin Page: 1051
End Page: 1058
Appears in Collections:Articles

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