Kyriakos Vlachos

Title: Kyriakos Vlachos: Optical Communications Inventor

Introduction

Kyriakos Vlachos is an inventor based in Athens, Greece, whose patent work addresses signal processing and optical devices for communications systems. His listed portfolio includes 2 patents, including inventions for extracting and receiving frequency-modulated signals carried alongside intensity-modulated optical signals.

Latest Patents

One patent, “Method and Apparatus for Receiving Frequency Modulated Signals on an Intensity Modulated Optical Carrier,” describes a receiver designed to detect frequency-shift-keyed (FSK) labels carried with an amplitude- or intensity-modulated payload. The method separates two FSK tones and sends them to a balanced detector, which subtracts the tones to produce an AC-coupled data stream. A Schmitt trigger then suppresses residual payload effects in the recovered data. The invention provides approaches for both single-channel and wavelength-division multiplexing systems.

Another patent, “Optical Device for Extracting a Sideband Signal from a Composite Signal Including Orthogonally Modulated Signals,” presents a way to separate an information-bearing sideband from a composite optical signal. The device uses polarization-maintaining fiber and polarization beam splitters to separate orthogonal signal components, allowing a sideband such as an FSK or subcarrier-multiplexed signal to be extracted from an intensity-modulated payload. The patent describes applications including the extraction of GMPLS label-switched-path wavelength labels.

Career Highlights

Vlachos’s listed professional affiliations include Lucent Technologies Inc. and Alcatel-Lucent USA Inc. His patent work reflects a focus on optical networking, signal reception, and techniques for separating control information from data payloads.

Collaborations

The supplied information lists Jean G. Jennen and Jean Gerardus Leonardus Jennen among Vlachos’s coworkers. Their names are associated with his professional network, though the provided details do not specify particular joint projects.

Conclusion

Kyriakos Vlachos’s patents address practical challenges in optical communications by enabling the detection and extraction of signaling information carried alongside data payloads.