Naomi Kumano

Generation of 80-nm Wavelength-Tunable 100-fs Pulse Based on Comblike Profiled Fiber Comprised of HNLF and Zero Dispersion-Slope NZDSF

To realize extremely wideband wavelength-tunable femtosecond (fs) pulse generation, we propose a dispersion-flattened comblike profiled fiber that is a pulse compressor comprised of low dispersion-slope highly nonlinear fiber and zero dispersion-slope nonzero dispersion-shifted fiber (ZDS-NZDSF). We also apply ZDS-NZDSF to a soliton converter to reshape and compress a seed pulse train generated from a tunable laser source and an intensity modulator. Using the proposed scheme, we successfully generate 100-fs optical pulse from the seed pulse with the varied wavelengths of 1530, 1570, and 1610 nm

Development of low-loss SMF with low-nonlinearity for next generation terrestrial transmission

Single mode fiber with low attenuation loss as 0.180 dB/km at 1550 nm with low splice loss has been developed for next generation terrestrial transmission. Its low nonlinearity could also make wideband, high-density transmission easier.

Widely wavelength-tunable femtosecond pulse generation based on comb-like profiled fiber comprised of HNLF and zero dispersion-slope NZDSF

Using a dispersion-flattened comb-like profiled fiber comprised of HNLF and zero dispersion-slope NZDSF, we demonstrate extremely wideband wavelength-tunable femtosecond pulse generation. 100-fs optical pulses are successfully generated for the wavelengths of 1530, 1570, and 1610nm.

Trade-off of dispersion slope and effective area in ultra low slope NZ-DSF for non-dispersion-compensated WDM metro transmission

We investigate the nonlinear penalty of ultra-low-slope NZ-DSF with less than 50-/spl mu/m/sup 2/ effective area in nondispersion-compensated systems. For 80and 155-km, 10-Gbit/s transmission, negligible nonlinear penalty was found for launch powers up to 0 dBm/ch.