Abstract
The first compact and high-performance optical transmitter using flip-chip interconnects has been
developed for a 112-Gbit/s transceiver. The flip-chip interconnects provide lower crosstalk and a higher modulation
bandwidth than wire interconnects. The flip-chip interconnection module has 3-dB frequency bandwidths of over
30 GHz. This value is up to 5 GHz better than that of a wire interconnection module. Under four-channel
simultaneous operation, the OTU4 mask margins for all four lanes of the flip-chip interconnection module exceed
37%. These values are degraded up to only 4% compared with those for single-channel operation. In
addition, an error-free transmission through 10 km of single-mode fiber at 112 Gbit/s is demonstrated.
© 2013 IEEE
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