Characteristics of 10-Gb/s Electroabsorption Modulator Integrated Distributed Feedback Lasers for Long-Haul Optical Transmission Systems

In this study, we review the characteristics of 10-Gb/s electroabsorption modulator integrated (EAMI) distributed feedback (DFB) lasers for long-haul optical transmission systems. The recent progress and issue of extinction ratio, chirp, and frequency response are described, which are important para...

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Bibliographic Details
Published inOptical fiber technology Vol. 7; no. 2; pp. 84 - 100
Main Authors Kim, Yonggyoo, Kim, Sung Kee, Lee, Jaehoon, Kim, Yonghoon, Kang, Jungho, Choi, Woosuk, Jeong, Jichai
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.04.2001
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Summary:In this study, we review the characteristics of 10-Gb/s electroabsorption modulator integrated (EAMI) distributed feedback (DFB) lasers for long-haul optical transmission systems. The recent progress and issue of extinction ratio, chirp, and frequency response are described, which are important parameters to improve transmission performance. Except for the extinction ratio, frequency response and chirp characteristics are discussed further. The frequency response of packaged EAMI-DFB lasers has been improved using the novel impedance matching technique. The large signal chirp characteristics are calculated with varying bias voltage, facet reflectance, grating phase, and a coupling coefficient (κL) to predict the measured chirp characteristics. Finally, transmission performance (BER, eye margin, and eye opening penalty) is measured and estimated using the calculated chirp characteristics.
ISSN:1068-5200
1095-9912
DOI:10.1006/ofte.2000.0352