發(fā)布時(shí)間：2018-05-16 20:09

  本文選題：太赫茲波 + 光子晶體光纖　； 參考：《光通信研究》2016年01期

【摘要】：以低損耗材料聚乙烯為基底,設(shè)計(jì)了一種新型的太赫茲光子晶體光纖,并利用全矢量有限元法對其單模截止頻率、色散和損耗進(jìn)行了數(shù)值模擬。結(jié)果表明,改變包層空氣孔周期、空氣孔直徑和纖芯空氣孔直徑,可以調(diào)節(jié)太赫茲單模傳輸?shù)念l率范圍。當(dāng)包層空氣孔周期為400μm、包層空氣孔直徑為100μm、纖芯空氣孔直徑為40μm時(shí),不僅可以獲得0.1~5THz的寬頻帶單模傳輸范圍,而且在0.5~5THz頻率范圍內(nèi)波導(dǎo)色散可以控制在±0.5ps/(nm·km),且模式的限制損耗隨頻率的增大逐漸減小,同時(shí)在2.8THz處獲得最小傳輸損耗3.86dB/m。
[Abstract]:A novel terahertz photonic crystal fiber was designed based on low loss polyethylene and its single-mode cut-off frequency dispersion and loss were numerically simulated by full-vector finite element method. The results show that the frequency range of terahertz single mode transmission can be adjusted by changing the period of cladding air hole the diameter of air hole and the diameter of core air hole. When the cladding air hole period is 400 渭 m, the cladding air hole diameter is 100 渭 m, and the core air hole diameter is 40 渭 m, the broadband single-mode transmission range of 0.1~5THz can be obtained. Moreover, the waveguide dispersion can be controlled to 鹵0.5ps/(nm KMN in the 0.5~5THz frequency range, and the mode limiting loss decreases with the increase of the frequency. At the same time, the minimum transmission loss of 3.86 dB / m is obtained at 2.8THz.
【作者單位】： 蘭州理工大學(xué)理學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(61167005,61367007) 甘肅省自然科學(xué)基金資助項(xiàng)目(1112RJZA018,1112RJZA017)
【分類號】：TN253

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本文編號：1898234