Polarization Mode Dispersion Compensation of Erbium-Doped Fiber Amplifier

• Main Authors: Chia-Chu Chen, 陳嘉駒
• Other Authors: Sien Chi
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/05530138509978095084

碩士 === 國立交通大學 === 光電工程所 === 90 === Polarization mode dispersion (PMD) compensation becomes more and more important because of the demands for high bit rate in fiber transmission systems. So in this thesis, we use a Faraday rotator mirror and circulator to construct a double pass erbium-doped fiber amplifier (EDFA) for PMD compensation. We will demonstrate the ability that our structure can reduce the PMD values to near zero. The polarization dependent gain (PDG) is also discussed and we can reduce this effect to half of the conventional EDFA’s value. Beside the polarization effects, we will also show the signal gain and noise figure of our double pass EDFA. This structure can achieve higher gain than conventional one pass EDFA and the noise figure is around 5dB.