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Recent progress in optical amplifiers

Derniers dÉveloppements concernant les amplificateurs optiques

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Abstract

State of the art optical amplifier technologies are reviewed focusing on research at ntt. The following developments will be described : an erbium-doped silica fiber with a very high gain coefficient of 11.0 dB/mW, a very small (volume : 36 cc) fiber amplifier module pumped by a 980 nm InGaAs laser diode, an Er-doped fiber amplifier pumped by an AlGalnP visible laser diode, praseodymium-doped fluoride glass fiber amplifiers operating in 1300 nm band, silica-based erbiumdoped planar lightwave circuit amplifiers, and their applications in various optical transmission and measurement systems. The future trends in the optical amplifier research are also described.

Résumé

L’article passe en revue ľétat de ľart concernant les amplificateurs optiques, en insistant sur les recherches à ntt. Il décrit en particulier une fibre en silice dopée à Verbium ay ant un coefficient de gain élevé (11,0 dB/mW), un module amplificateur de faible volume (36 cm3) pompé par une diode laser à 980 nm, un amplificateur à fibre dopée a ľ erbium pompée par une diode laser en AlGaAs émettant dans le visible, des am plificateurs à fibre en verre aufluorure dopé au praséodyne fonctionnant vers 1300 nm, des amplificateurs à circuit optique planaire à base de silice dopé à V erbium, des applications en transmission optique et dans des systémes de mesure. II evoque aussi les tendances ďavenir.

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  1. NTT Opto-electronics Laboratories, 162 Tokai-Mura, Naka-Gun, 319-11, Ibaraki-Ken, Japon

    Masaharu Horiguchi

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Horiguchi, M. Recent progress in optical amplifiers. Ann. Télécommun. 48, 356–367 (1993). https://doi.org/10.1007/BF02995461

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