Characterization of an electroabsorption modulator design with high-dynamic range for broadband analog applications

Rebecca Bussjager; Reinhard Erdmann; Richard Michalak; Paul Cook; Brian McKeon; Henry Zmuda; Songsheng Tan; Nancy Stoffel; Charles Schick; Terrance McDonald; Paul Yu; Ivan Shubin; Xiaobo Xie

doi:10.1117/12.784225

23 April 2008 Characterization of an electroabsorption modulator design with high-dynamic range for broadband analog applications

Rebecca Bussjager, Reinhard Erdmann, Richard Michalak, Paul Cook, Brian McKeon, Henry Zmuda, Songsheng Tan, Nancy Stoffel, Charles Schick, Terrance McDonald, Paul Yu, Ivan Shubin, Xiaobo Xie

Author Affiliations +

Proceedings Volume 6975, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications IV; 69750N (2008) https://doi.org/10.1117/12.784225
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

An electroabsorption modulator (EAM) is designed to optimize dynamic range performance over 20 GHz bandwidth. The single stripe waveguide enables an extremely compact and integrated package to be fabricated with single mode fiber pigtails. The transfer function's shape permits suppression of higher order intermodulation products, yielding a spur-free dynamic range exceeding that of Mach- Zehnder designs. A dilute optical core diverts energy flow from absorbing layers into low loss waveguide; the 20 dBm optical power tolerance is significantly higher than that of commercially available electroabsorption devices. The tunable performance over 20 GHz is characterized and applications are discussed. New approaches to the broadband impedance matching requirements are calculated and the impact on system performance is assessed.

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Rebecca Bussjager, Reinhard Erdmann, Richard Michalak, Paul Cook, Brian McKeon, Henry Zmuda, Songsheng Tan, Nancy Stoffel, Charles Schick, Terrance McDonald, Paul Yu, Ivan Shubin, and Xiaobo Xie "Characterization of an electroabsorption modulator design with high-dynamic range for broadband analog applications", Proc. SPIE 6975, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications IV, 69750N (23 April 2008); https://doi.org/10.1117/12.784225

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