Self-pulsing multi-section laser

US6122306A · kind A · utility

Assignee

• Heinrich Hertz Institut fuer Nachrichtentechnik Berlin GmbH. · DE

Inventors

• Bernd Sartorius · Berlin, DE
• Martin Moehrle · Berlin, DE
• Uwe Feiste · Berlin, DE
• Juergen Hoerer-Dragendorf · Berlin, DE

Key dates

• Filing date: Sep 30, 1997
• Grant date: Sep 19, 2000
• Expiry date: Sep 30, 2017

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/0658
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

In a self-pulsing multi-section laser having two DFB sections, a Fabry-Perot-like resonator formed from two reflectors and a spacer is integrated into the multi-section laser and optically coupled to at least one DFB section. The spacer has a similar layer structure to the adjacent DFB sections (D.sub.1 and D.sub.2) but not DFB grid and takes the form of a control section operable electrically separated from the DFB sections. Selection is unnecessary. The self-pulsing two-section DFB laser of the invention with an integrated control section is suitable for optical beat regeneration in high-rate communication systems.