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We review recent results on using wavelength selective splitting in a wavelength selective switch (WSS) for emulating complex interferometric structures and its applications for optical performance monitoring and demultiplexing of DPSK and OFDM signals.
We numerically investigated the possibility of a phase sensitive amplifier based on a semiconductor optical amplifier. Suppression of phase variation was confirmed in the dual-pump degenerate four wave mixing method.
A numerical solution based on the pseudospectral scheme is developed for solving the mode characteristics of a nonlinear plasmonic waveguide composed of a thin metal film surrounded by a Kerr-type nonlinear cladding and a linear substrate. The power dispersion curves of the stationary long-range and short-range surface plasmon polaritons are investigated and the field profiles of the two modes are...
We propose a novel Kerr-effect compensator in digital coherent receivers, in which optimized single split-steps are aligned in parallel in the frequency domain. Computer simulations show that our scheme can drastically elongate the transmission distance.
We develop the first truly colorless parametric tunable dispersion compensator based on single FWM process in PM-HNLF that has flat zero-dispersion profile within C+L band. Entire C-band operations are experimentally demonstrated for 43-Gbit/s RZ-DQPSK signals.
This paper explores the role of nanotechnology with focus on nanophotonics in dielectric, metal, and semiconductor inhomogeneous composition materials, devices and subsystems for optical communications, information and signal processing, and sensing.
A 1.25-Gbit/s 2WDM/2OCDM signal is generated from a 6-nm bandwidth SC signal supplied from OLT. The SC-signal is spectrum-sliced and OOK-modulated with RSOAs in ONUs. The upstream transmission shows BERs<10−9 over 20 km of SMFs.
We have evaluated the performance of fiber Bragg grating (FBG) based dispersion compensators for an amplified wavelength-division multiplexed passive optical network (WDM-PON) implemented using broadband light source (BLS) seeded optical sources.
We investigate various types of pulse stretchers including the Offner-type stretcher using only one diffraction grating with positive dispersion for chirped pulse amplification. The pulse width was stretched from 95 fs to as long as 63.6 ps.
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