Title :
Reduction of temperature-dependent gain in L-band EDFA using antimony-aluminum codoped silica EDF
Author :
Im, Young-Eun ; Oh, Kyunghwan ; Chang, Sun Hyok ; Kim, Kwangjoon ; DiGiovanni, David J.
Author_Institution :
Dept. of Inf. & Commun., Gwangju Inst. of Sci. & Technol., South Korea
Abstract :
We report a novel technique to suppress the temperature-dependent gain (TDG) of an L-band erbium-doped fiber amplifier. The composite optical gain block consists of conventional L-band erbium-doped fiber (EDF) serially concatenated with a special EDF in a ternary glass composition, antimony-aluminum codoped silica that showed an opposite TDG coefficient in the L-band. The TDG variation of the composite gain block was suppressed to less than ±1.5 dB for a saturated gain of 15 dB between 1565 and 1605 nm, measured over a temperature range of -40°C to +80°C.
Keywords :
aluminium; antimony; erbium; glass fibres; optical communication equipment; optical fibre amplifiers; optical fibres; silicon compounds; L -band EDFA; SiO2:Sb, Al; antimony-aluminum codoped silica EDF; erbium-doped fiber amplifier; optical gain block; temperature-dependent gain reduction; Concatenated codes; Erbium-doped fiber amplifier; Gain measurement; Glass; L-band; Optical saturation; Silicon compounds; Stimulated emission; Temperature distribution; Temperature measurement; Antimony-doped silica fiber; athermal optical component; temperature-dependent gain (TDG) coefficient;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.851890
