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首頁(yè)> 外文會(huì)議>Transparent Optical Networks (ICTON), 2012 14th International Conference on >Optical filter cascading effects in a phase modulated coherent optical OFDM transmission system based on Hartley transform
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Optical filter cascading effects in a phase modulated coherent optical OFDM transmission system based on Hartley transform

機(jī)譯：基于Hartley變換的相調(diào)制相干光OFDM傳輸系統(tǒng)中的級(jí)聯(lián)效應(yīng)。

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摘要

Effects of cascading optical filters are investigated for a phase modulated coherent optical OFDM system based on Hartley transform. The evaluation is performed by means of numeric simulations in a 10 Gb/s system with a total bandwidth of 10 GHz. First a back-to-back (no fiber) case is assessed. Results show a 3 dB power penalty after a single filter of only 68% of the signal bandwidth. The same penalty is achieved when cascading 10 filters of 21.6 GHz bandwidth. Additionally, the penalties associated to the introduction of fiber spans between filters are investigated.
機(jī)譯：研究了基于Hartley變換的級(jí)聯(lián)相干光OFDM系統(tǒng)級(jí)聯(lián)光學(xué)濾波器的效果。評(píng)估是通過(guò)在總帶寬為10 GHz的10 Gb / s系統(tǒng)中進(jìn)行數(shù)值模擬來(lái)進(jìn)行的。首先評(píng)估背對(duì)背（無(wú)光纖）的情況。結(jié)果表明，單個(gè)濾波器僅在信號(hào)帶寬的68％之后會(huì)產(chǎn)生3 dB的功率損失。當(dāng)級(jí)聯(lián)10個(gè)21.6 GHz帶寬的濾波器時(shí)，將獲得相同的代價(jià)。另外，研究了與引入過(guò)濾器之間的纖維跨度有關(guān)的懲罰。

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