Conception and characterization of a dual-concentric-core erbium-doped dispersion-compensating fiber.
We present an erbium-doped dispersion-compensating fiber made up of two asymmetric concentric cores, inner and outer matched claddings, and erbium located in the central core only. We demonstrate a high negative chromatic dispersion value [-700 ps/(nm km) at 1568 nm], significant modification of the gain spectrum compared with that of a classic erbium-doped fiber amplifier, and 30-dB peak small-signal gain at 1535 and 1553 nm.
Maury
J
J
Institut de Recherches en Communications Optiques et Micro-Ondes, Unité Mixte de Recherche, Faculté des Sciences et Techniques, Université de Limoges, 123 Avenue A. Thomas, 87060 Limoges, France. maury@ircom.unilim.fr
Auguste
J L
JL
Février
S
S
Blondy
J M
JM
Dussardier
B
B
Monnom
G
G