Title :
Frequency detuning effects in a loop-back WDM-PON employing gain-saturated RSOAs
Author :
Lee, Wooram ; Cho, Seung Hyun ; Park, Mahn Yong ; Lee, Jie Hyun ; Kim, Byoung Whi ; Jeong, Geon ; Byoung Whi Kim
Author_Institution :
Korea Electron. & Telecommun. Res. Inst., Daejeon
fDate :
7/1/2006 12:00:00 AM
Abstract :
We report that, in a loop-back wavelength-division-multiplexed passive optical network link with gain-saturated reflective semiconductor optical amplifiers, the upstream performance is strongly affected not only by the gain saturation but also by the selective spectral filtering caused by the frequency difference between the optical downstream signal and the cascaded filter´s passband. We experimentally investigate these effects and propose to use an additional negatively detuned optical filter at an optical network terminal to improve the upstream transmission performance
Keywords :
optical fibre networks; optical filters; optical saturation; semiconductor optical amplifiers; wavelength division multiplexing; WDM-PON; cascaded filter; detuned optical filter; frequency detuning effects; gain saturation; loop-back optical network; optical downstream signal; passive optical network link; reflective semiconductor optical amplifiers; selective spectral filtering; upstream transmission; Filtering; Frequency; Optical fiber networks; Optical filters; Optical saturation; Passive filters; Passive optical networks; Performance gain; Semiconductor optical amplifiers; Stimulated emission; Reflective semiconductor optical amplifier (RSOA); remodulation scheme; spectral filtering; wavelength-division-multiplexed (WDM) access network;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.877229
