Title :
Two-stage optical limiting fiber amplifier using a synchronized etalon filter
Author :
Kim, C.H. ; Giles, C.R. ; Chung, Y.C.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
We demonstrate a two-stage optical limiting erbium-doped fiber amplifier (OLA) using an interstage synchronized etalon filter and an isolator. The proposed OLA shows higher gain, lower noise figure, and wider dynamic range (>30 dB) than conventional two-stage erbium-doped fiber amplifiers (EDFAs) with an interstage isolator. In addition, this OLA is well suited for the use in wavelength-division multiplexed (WDM) networks since the synchronized etalon filter has multiple passbands at the standardized WDM wavelengths.
Keywords :
band-pass filters; erbium; fibre lasers; light interferometers; limiters; optical communication equipment; optical filters; synchronisation; wavelength division multiplexing; WDM networks; dynamic range; interstage isolator; interstage synchronized etalon filter; lower noise figure; multiple passbands; optical isolators; standardized WDM wavelengths; synchronized etalon filter; two-stage erbium-doped fiber amplifiers; two-stage optical limiting fiber amplifier; wavelength-division multiplexed; Erbium-doped fiber amplifier; Isolators; Optical fiber amplifiers; Optical fiber filters; Optical fibers; Optical filters; Optical noise; Semiconductor optical amplifiers; Stimulated emission; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
