A fully integrated 40 Gb/s transmitter and receiver chipset with SFI-5 interface is implemented
in a 65 nm CMOS technology and mounted in a plastic BGA package. The transmitter chip …

As 40Gb/s optical communication systems enter the commercial stage, the transceiver, which
is a key component of these systems, requires lower power dissipation, a size reduction, …

We have successfully demonstrated error-free transmission of 43-Gbit/s NRZ WDM signals
over a 405-km SMF having a maximum of 15.6-ps DGD with our newly-developed equalizer. …

We propose a novel channel power extraction method in optical filter-less coherent detection.
By detecting amplitude of optimally filtered electrical analog waveform, we achieved …

The required high-frequency laser diode (LD) FM responses for a continuous phase
frequency shift keying (CPFSK) heterodyne delay modulation system were investigated. The …

We demonstrated an ultra-low jitter clock and data recovery (CDR) circuit that covers an ultra
wide frequency range from 35 Gb/s to 46 Gb/s. Our CDR has a newly developed dual input …

We resolved signal degradations due to DGD and OSNR from a single monitor source. We
verified a precision of+/-0.2 dB of Q-value experimentally with a monitor prototype and …

A fully integrated 40-Gb/s transmitter and receiver chipset with SFI-5 interface was implemented
in a 65-nm CMOS technology and mounted in a plastic BGA package. The transmitter …

As the signal speed of LSIs increases, so does the need to replace copper interconnects with
optical interconnects, especially for high performance computing(HPC). The LSIs of next-…

We have carried out elemental research and development regarding optical transmission
technology to establish the petaFLOPS - (10 15 FLoating point number Operations Per Second…