Enrico Griseri

Title: Enrico Griseri: Innovator in Optical Technologies

Introduction

Enrico Griseri is a notable inventor based in Milan, Italy, recognized for his contributions to optical technologies. With a total of six patents to his name, Griseri has made significant advancements in the field of Raman amplification.

Latest Patents

Griseri's latest patents include a "Multi-wavelength distributed Raman amplification set-up." This invention presents techniques to set power levels for multiple Raman pump wavelengths in a distributed Raman amplification configuration. A first receive power measurement is obtained at a second node with a controlled optical source at a first node turned on and with a plurality of Raman pump lasers at different wavelengths at the second node turned off. A second receive power measurement is obtained at the second node with the controlled optical source at the first node turned on and the plurality of Raman pump lasers turned on to respective reference power levels to inject optical Raman pump power at a corresponding plurality of wavelengths into the optical fiber span. Based on a target Raman gain and a target Raman gain tilt, respective ratios of total power are obtained, each ratio to be used for a corresponding one of the plurality of Raman pump lasers. Another significant patent is "Raman-based static and dynamic tilt control in an optical system." In this invention, an optical fiber carries optical channels injected into the optical fiber to a Raman amplifier. A controller determines a static tilt associated with the channels in the fiber due to wavelength-dependent losses. A photodiode measures the total power of the channels at the output of the Raman amplifier. The controller determines a dynamic tilt associated with channels in the fiber based in part on the measured total power. The dynamic tilt is induced by Stimulated Raman Scattering (SRS) in the fiber and varies as a function of the total power of the signals injected into the fiber. The controller determines a total tilt with which to offset the static and dynamic tilts, setting an amplifier gain tilt applied to the channels equal to the total tilt.

Career Highlights

Enrico Griseri is currently employed at Cisco Technology, Inc., where he continues to innovate and develop cutting-edge optical technologies. His work has significantly impacted the field, particularly in enhancing the performance of optical systems.

Collaborations

Griseri has collaborated with notable colleagues such as Mauro Brunella and Fabrizio Forghieri, contributing to various projects and advancements in optical technology.