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Optical Amplification at 1.3 μm in a Praseodymium‐Doped Sulfide‐Glass Fiber
Author(s) -
Tawarayama Hiromasa,
Ishikawa Etsuko,
Yamanaka Kenji,
Itoh Katsuhisa,
Okada Keiko,
Aoki Hiroshi,
Yanagita Hiroaki,
Matsuoka Yoshihiko,
Toratani Hisayoshi
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01276.x
Subject(s) - praseodymium , materials science , wavelength , doping , optical fiber , fiber , net gain , optics , optoelectronics , composite material , amplifier , physics , cmos , metallurgy
Praseodymium‐doped glasses were prepared in the Ga‐Na‐S (GNS) system and their optical properties were studied. A single‐mode fiber with an attenuation loss of 1.2 dB/m at a wavelength of 1.31 μm was fabricated using an extrusion method, and the amplification characteristics were measured in the bidirectional pumping configuration. We demonstrated a gain coefficient of 0.81 dB/mW at a wavelength of 1.34 μm, which is the highest we have ever reported, and achieved a net gain of 32 dB for a pump power of 90 mW. Highly efficient optical amplification at a wavelength of 1.3 μm was demonstrated in the praseodymium‐doped GNS fiber.