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EP0246959A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Distributed feedback semiconductor laser having a continuously tunable wavelength

Assignee: Orange SA
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Filing: 1987-05-15
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Granted: —
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Expires: 2007-05-15
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Abstract

Abstract Translated from French Laser à semi-conducteur à réaction distribuée continûment accordable en longueur d'onde.Une double hétérostructure est formée d'un substrat (100), d'une couche de confinement (102), d'une couche active (104), d'une couche de guidage (106) gravée en réseau de diffraction. Le ruban actif est enterré dans une couche (108). Il présente une région centrale élargie par rapport au reste du ruban. L'électrode supérieure d'injection de charges est séparée en deux électrodes (114, 116), l'une permettant l'injection d'un courant dans la zone centrale élargie, l'autre l'injection d'un courant dans le reste du ruban. On peut ainsi régler la longueur d'onde d'émission de manière continue de part et d'autre de la longueur d'onde de Bragg.Application en télécommunications optiques. Continuously distributed wavelength-tunable feedback semiconductor laser A double heterostructure is formed by a substrate (100), a confining layer (102), an active layer (104), a guide layer (106) etched in a diffraction grating. The active tape is buried in a layer (108). It has a central region enlarged compared to the rest of the ribbon. The upper charge injection electrode is separated into two electrodes (114, 116), one allowing the injection of a current in the enlarged central zone, the other the injection of a current in the remainder. tape. It is thus possible to adjust the emission wavelength continuously on either side of the Bragg wavelength. Application in optical telecommunications.

Inventors

  • 👤 Jean-Claude Bouley
  • 👤 Pascal Correc

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-27 18:45
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/06; H01S5/062; H01S5/0625; H01S5/06255; H01S5/06258; H01S5/20; H01S5/22; H01S5/227; H01S5/06209; H01S5/06213; H01S5/10; H01S5/1053; H01S5/1064; H01S5/12; H01S5/124; H01S5/1243; H01S5/2275

Claims Analysis

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References Cited (Backward Citations)

GB2106706A Cited
EP0169567A2 Cited

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