本文關(guān)鍵詞：單端反饋互耦合垂直腔面發(fā)射激光器混沌輸出的時(shí)延特征和帶寬分析　出處：《中國(guó)激光》2017年05期 　論文類型：期刊論文

  更多相關(guān)文章： 激光器 垂直腔面發(fā)射激光器 時(shí)延特征 帶寬

【摘要】：針對(duì)無(wú)反饋互耦合垂直腔面發(fā)射激光器(VCSELs)系統(tǒng)的混沌輸出不能同時(shí)實(shí)現(xiàn)時(shí)延特征隱藏和帶寬展寬的問(wèn)題,通過(guò)對(duì)無(wú)反饋互耦合VCSELs系統(tǒng)中的一個(gè)激光器增加外反饋,數(shù)值分析了單端反饋互耦合VCSELs混沌輸出的時(shí)延特征和帶寬。結(jié)果表明,反饋強(qiáng)度、頻率失諧和互耦合強(qiáng)度影響單端反饋互耦合VCSELs混沌輸出的時(shí)延特征和帶寬。有反饋端激光器不能同時(shí)實(shí)現(xiàn)時(shí)延特征隱藏和帶寬展寬,無(wú)反饋端激光器可以在合適的互耦合強(qiáng)度和頻率失諧參數(shù)區(qū)間內(nèi)同時(shí)實(shí)現(xiàn)時(shí)延特征隱藏和帶寬展寬。改變反饋強(qiáng)度不影響無(wú)反饋端激光器實(shí)現(xiàn)時(shí)延特征隱藏質(zhì)量和帶寬,但會(huì)影響無(wú)反饋端激光器同時(shí)實(shí)現(xiàn)時(shí)延特征隱藏和帶寬展寬的頻率失諧區(qū)域位置,且增大反饋強(qiáng)度時(shí)頻率失諧區(qū)域位置整體向負(fù)失諧區(qū)域移動(dòng)。
[Abstract]:In order to solve the problem that the chaotic output of the VCSELs (Vertical cavity Surface emitting Laser) system without feedback coupling can not realize the delay feature concealment and bandwidth broadening at the same time. By adding external feedback to a laser in a non-feedback cross-coupled VCSELs system, the delay characteristics and bandwidth of single-end feedback cross-coupled VCSELs chaotic output are numerically analyzed. Feedback intensity, frequency detuning and mutual coupling intensity affect the delay characteristics and bandwidth of single-ended feedback cross-coupled VCSELs chaotic output. The feedback end laser can not simultaneously realize delay feature hiding and bandwidth broadening. Non-feedback end lasers can simultaneously realize delay feature concealment and bandwidth broadening in the appropriate range of mutual coupling intensity and frequency detuning parameters. Changing feedback intensity does not affect the quality of delay characteristic concealment in non-feedback end lasers. And bandwidth. But it will affect the position of frequency detuning region which can realize delay characteristic concealment and bandwidth widening at the same time, and move the position of frequency detuning region to negative detuning region when feedback intensity is increased.
【作者單位】： 中國(guó)人民解放軍信息工程大學(xué)理學(xué)院;
【基金】：河南省重點(diǎn)科技攻關(guān)項(xiàng)目(152102210012)
【分類號(hào)】：TN248
【正文快照】： 0501010-1半導(dǎo)體激光器可以通過(guò)光反饋、光注入和光電反饋等方式獲得混沌輸出[1-3],混沌激光在保密通信[4]、高速物理隨機(jī)數(shù)產(chǎn)生[5-7]等方面有著廣泛的應(yīng)用�；煦缂す獾臅r(shí)延特征(TDS)和輸出帶寬(BW)對(duì)其應(yīng)用具有重要影響。在保密通信中,竊密者根據(jù)混沌信號(hào)中的TDS重構(gòu)系統(tǒng),從

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