Publications

We demonstrate 100-Gb/s high spectral efficiency long-haul optical networking.

We transmit 10 electronically multiplexed 107-Gbit/s NRZ channels (0.7 bits/s/Hz spectral efficiency) over 400 km of nonzero dispersion fiber.

We present a 100Gb/s hybrid transmitter based on an array of 10 DWDM 10Gb/s directly modulated lasers, passively aligned to a SiO2 AWG, and its optimization for precise wavelength accuracy, high yi

Ten 25-GHz-spaced wavelength-division-multiplexed channels using 112-Gb/s polarization-division-multiplexed 16-QAM are transmitted over 1022 km of standard single-mode fiber.

We demonstrate ten-channel WDM transmission of 112-Gb/s 16-QAM (14-gigabaud, polarization-multiplexed) over 630 km of fiber.

: We demonstrate ten-channel wavelength-division-multiplexed long-haul optical networking of 28-Gbaud PDM 16-QAM signals on a 50-GHz grid (spectral efficiency of 4 b/s/Hz).

We demonstrate ten-channel wavelength-division-multiplexed (WDM) transmission of 56-Gbaud PDM-QPSK signals (i.e., at a line rate of 224 Gb/s) over 1,890 km of fiber on a 100-GHz WDM grid (spectral

We demonstrate ten-channel wavelength-divisionmultiplexed (WDM) transmission of 56-Gbaud PDM-QPSK signals (i.e., at a line rate of 224 Gb/s) over 1,890 km of fiber on a 100-GHz WDM grid (spectral e

We demonstrate the transmission of 10-Gb/s vestigial-side-band (VSB) signals over 177 km of conventional single-mode fiber. The dispersion penalty was measured to be less than 3 dB.

We developed a 1.0-Gb/s AlGaInAs colorless remote amplified modulator with a gain peak detuned semiconductor optical amplifier using a selective epitaxy and semi-insulating buried heterostructure.