Periklis Petropoulos

TL;DR: The design, fabrication and characterization of a highly nonlinear graded-index SiGe waveguide for the conversion of mid-inf infrared signals to the near-infrared is demonstrated and phase-matched four-wave mixing is used.

TL;DR: In this article, the fabrication of lead silicate holey fibers with record nonlinearities of up to 1860 W-1km-1 at 1.55 µm was reported.

TL;DR: It is suggested and demonstrated how fiber optic parametric amplifiers can be used to enhance all of these key comb parameters, allowing frequency span multiplication, low noise amplification with simultaneous comb spectrum flattening, and improvement in optical tone-to-noise ratio through various phase insensitive as well as phase sensitive implementations.

TL;DR: In this paper, a phase sensitive scheme based on four-wave mixing followed by a polarizer was proposed to achieve an ideal binary step-like phase transfer function at nonlinear phase shifts as low as 0.3 radians by significantly increasing the parametric de-amplification component.

TL;DR: The design of 2R-regenerators based on self-phase modulation in lossy fibers and the applicability of the proposed scaling rules are reported and detailed characterization of the pulse characteristics at the regenerator output is presented.