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We investigated wavelength-control-characteristics of a silicon photonic transmitter employing heater-integrated silicon micro-ring-modulator and flip-chip integrated CMOS driver. A novel wavelength control successfully demonstrated error-free operation at 25 Gbps during wide-package-temperature cycle between 20 and 60ºC for the first time.
A four-wavelength Si/III-V hybrid laser array was developed for energy-efficient silicon photonics CWDM transmitter. Under 4-ch simultaneous operation, stable lasing oscillations at four neighboring ring-resonator peaks are obtained with high output powers of >+5dBm/ch.
We have developed a high-speed electroabsorption modulator integrated distributed feedback (EA/DFB) lasers. To realize the high-speed, small-footprint, low-power-consumption and cost-effective semiconductor light source, we have investigated the several key technologies. Newly developed 1.3 mum range 25 Gbps and 43 Gbps EA/DFB laser showed a good transmission performance over 10 km single mode fiber...
In this paper, 40 Gb/s SFI-5-compliant TX and RX chips in 65 nm CMOS technology consume 2.8 W each. This low power dissipation allows for a small and low-cost plastic BGA package. The TX has a full-rate clock architecture that is based on a 40 GHz VCO, a 40 Gb/s retiming D-FF, and 40 GHz clock-distribution circuits that lead to a low jitter of 0.57 psrms and 3.1 pspp at 40 Gb/s. A 40/20 GHz clock-timing-adjustment...
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 provides good jitter performance with a 40 GHz full-rate clock architecture that alleviates pattern-dependent jitter and eliminates duty cycle dependence. The measured RMS jitter on the output is 570 fs to 900 fs over...
We first report a low power consumption (under 0.18 W) and a wide temperature range (-5 to 75 degC) operation of 1.55-mum un-cooled EA/DFB-LD coaxial-type TOSA in 10-Gbit/s 40-km transmission.
We developed a high-speed (over 30 GHz) and high-responsivity (nearly 0.8 A/W) back-illuminated PD with a newly developed high reflective reflector, and successfully demonstrated an error free 25-Gbps 10-km SMF transmission.
Uncooled 1300-nm range 25-Gbps EA/DFB lasers that support cost-effective optical transmitter for 100-Gbps Ethernet has been realized. A wide temperature ranged 12-km transmission with over 9.6-dB dynamic extinction ratio was demonstrated.
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