Frequency comb generating device and method for generating a frequency comb

US10707968B2 · kind B2 · utility

Assignee

• Rohde & Schwarz GmbH & Co. KG · DE

Inventors

• Matthias Ruengeler · Munich, DE
• Gerhard Roesel · Unterthingau, DE
• Jakob Hammer · Munich, DE

Key dates

• Filing date: Sep 19, 2018
• Grant date: Jul 7, 2020
• Expiry date: Sep 19, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2203/56
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A frequency comb generating device is described. The frequency comb generating device comprises a pulsed optical light source, a sequence generator, a light receiving unit and a switching unit. The sequence generator is configured to generate a repeating sequence signal and to forward the repeating sequence signal at least to the switching unit. The pulsed optical light source is configured to generate electromagnetic wave packets and is synchronized with the sequence generator. The light receiving unit is configured to receive the electromagnetic wave packets and to convert the electromagnetic wave packets into an electrical signal. The switching unit is configured to at least one of control the pulsed optical light source, control the light receiving unit, attenuate the electromagnetic wave packets, phase shift the electromagnetic wave packets, attenuate the electrical signal, and phase shift the electrical signal based on the repeating sequence signal. Moreover, methods for generating an optical frequency comb and for generating an electrical frequency comb are described.