We demonstrate error-free dense-wavelength-division multiplexing (DWDM) transmission of
40 40-Gb/s channels with 100-GHz spacing over 10 000 km dispersion-managed fiber using …

The ability to transmit signals with high information spectral density (ISD) using low-
complexity and cost-effective transceivers is essential for short-and medium-haul optical …

We have demonstrated variable dispersion compensation by using a virtually imaged
phased array (VIPA) to overcome the small dispersion tolerance in 40-Gb/s dense …

We present a new technique for extending the decay time of the impulse response function
of a Fabry-Perot filter while simultaneously maintaining a large bandwidth. It involves double …

In this paper, we present an experimental investigation of 40 Gb/s transmission technology
aimed at an aggregate capacity exceeding 1 Tb/s over multithousand kilometer transmission …

Research and development of 40-Gb/s-based technologies are very significant for not only
increasing the total capacity of wavelength-division multiplexing transmission systems but …

We show that spectral inversion can be employed for regeneration to reduce the effect of
phase noise (Gordon-Mollenauer phase noise) in a nonreturn-to-zero differential phase-shift …

In this paper, a semiconductor saturable absorber based on ion-irradiated quantum-well
vertical cavity is implemented in a 40 Gbit/s dispersion-managed RZ loop, yielding a Q-factor …

The introduction of wavelength division multiplexing (WDM) has triggered a tremendous
capacity growth in submarine systems, both by the increase of the number of WDM channels …

70-GHz-spaced 40× 42.7 Gb/s prefiltered carrier-suppressed return-to-zero differential
phase-shift keying (CSRZ-DPSK) signals have been transmitted over transpacific distances …