Satoshi Shinada

TL;DR: This paper can obtain optical frequency shift using the singnal-sideband modulator consisting of four optical phase modulators, where the frequency shift is precisely equal to that of an rf-signal fed to the modulator.

TL;DR: In this article, the authors described a novel optical label swapping (OLS) technique for optical packet systems using frequency-shift-keying (FSK) optical labeling, which can be used for a bundled wavelength-domain-multiplexing (WDM) channels without using an array of pumping light sources.

TL;DR: In this article, a tunable all-optical wavelength conversion of 160-Gb/s return-to-zero (RZ) optical signals based on cascaded sum-and difference-frequency generation in a periodically poled LiNbO3 waveguide was reported.

TL;DR: In this article, a high extinction-ratio (ER) Mach-Zehnder modulator with an active Y-branch optical intensity trimmer was proposed for optical single-sideband (SSB) signal generation.

TL;DR: An optical packet and circuit integrated ring network testbed is constructed consisting of two switch nodes for accelerating network development, and it is demonstrated that error-free (frame error rate < 1×10(-4)) operation was achieved with optical packets of various packet lengths and packet rates.