標題: Ultimate Sensitivity for Optically Preamplified Direct-Detected OFDM Systems Using Spectrally Matched Optical Filters
作者: Peng, Wei-Ren
Feng, Kai-Ming
Willner, Alan E.
光電工程學系
Department of Photonics
關鍵字: Optical fiber communication;optical modulation;orthogonal frequency-division multiplexing (OFDM)
公開日期: 1-十二月-2009
摘要: We investigate the lower sensitivity bound, in terms of optical signal-to-noise ratio (OSNR), for direct-detected orthogonal frequency-division-multiplexing (DD-OFDM) systems in the presence of optically preamplified receivers. Using the spectrally matched optical filter, which is composed of two parallel filters for the carrier and sideband and has a passband matching to the signal spectrum, the ultimate sensitivity of DD-OFDM is found theoretically to approach that of coherent optical OFDM. We also investigate the effects of the filter's orders and bandwidths to the improved OSNR, and found that these effects could be effectively mitigated via the use of an optical amplifier for the carrier.
URI: http://dx.doi.org/10.1109/LPT.2009.2032934
http://hdl.handle.net/11536/6396
ISSN: 1041-1135
DOI: 10.1109/LPT.2009.2032934
期刊: IEEE PHOTONICS TECHNOLOGY LETTERS
Volume: 21
Issue: 23
起始頁: 1764
結束頁: 1766
顯示於類別:期刊論文


文件中的檔案:

  1. 000271966000002.pdf