Compact 40 Gbit/s EML Module Integrated with Driver IC

Takatoshi YAGISAWA, Tadashi IKEUCHI

Summary :

A compact (13.38.05.6 mm) 40 Gbit/s 1.55-µm electroabsorption (EA) modulator monolithically integrated distributed feedback (DFB) laser diode (EML) [1] module integrated with a driver IC has been developed. Its compactness was realized by employing a broadband feed-through and a bias tee which were accurately designed by 3-dimensional (3D) electromagnetic simulation. It was confirmed that the simulation results of the frequency response and the actual measurement results are corresponding well. Clear eye opening of the 40 Gbit/s optical output waveform of the fabricated EML module was observed. Degradation was not observed even when the 40 Gbit/s electrical signal was launched into the module via the flexible printed circuit (FPC).

• Publication: IEICE TRANSACTIONS on Electronics Vol.E92-C No.7 pp.951-956
• Publication Date: 2009/07/01
• Online ISSN: 1745-1353
• DOI: 10.1587/transele.E92.C.951
• Type of Manuscript: Special Section PAPER (Special Section on Recent Advances in Ultra-high-speed Photonic Devices for Next-generation Optical Fiber Communications)

Authors

Takatoshi YAGISAWA
Tadashi IKEUCHI

Keyword

40 Gbit/s EML,  VSR,  driver IC integration,  broadband bias tee,  feed-through