Optical NRZ-RZ format converter

US6625338B2 · kind B2 · utility

Assignee

• ALCATEL · FR

Inventors

• Alexandre Shen · Palaiseau, FR
• Fabrice Devaux · Pully, CH
• Michael Schlak · Berlin, DE
• Tolga Tekin · Berlin, DE

Key dates

• Filing date: May 10, 2001
• Grant date: Sep 23, 2003
• Expiry date: May 10, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2203/26
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Converter of an NRZ signal with a bit duration T comprising an interferometric structure (10) with two arms (9, 11) equipped with a medium (13, 15) with an index that varies depending on the optical power passing through the said medium. The NRZ signal to be converted is input into each of the arms (9, 11). The output signal (7) from the structure is reinput through a means (16) introducing a delay of T/2 in one of the arms (11).The signal at the output (7) is then the NRZ signal converted to the RZ format.