【摘要】：半導體激光器在光反饋、光注入、光電反饋等外部擾動下可產(chǎn)生單周期、注入鎖定、準周期、混沌等一系列豐富的非線性動力學行為,這些非線性動力學行為在光生微波、混沌保密通信、神經(jīng)光子學、真隨機數(shù)獲取等領(lǐng)域有著巨大的潛在應用價值。與常規(guī)邊發(fā)射半導體激光器(EELs)相比,垂直腔表面發(fā)射激光器(VCSELs)因具有更低的閾值電流、體積小、遠場發(fā)散角較小、對光纖耦合損耗低、易實現(xiàn)動態(tài)單縱模輸出和易于大規(guī)模集成等優(yōu)點而備受關(guān)注。特別地,位于光纖通信窗口的長波長(1310 nm-1550 nm)VCSELs因易于與現(xiàn)有光纖系統(tǒng)兼容而成為了近年來的研究熱點。目前基于VCSELs非線性動力學特性的研究主要集中在光反饋和光注入兩種方式,對光電反饋下VCSELs非線性動力學特性的研究大多基于理論分析,而相關(guān)的實驗報道還較少。因此,實驗研究光電反饋下1550 nm VCSELs的非線性動力學特性具有一定的應用價值。本文實驗研究了光電正反饋和光電負反饋兩種擾動下1550 nm VCSELs的動力學特性,并分析了這些動力學態(tài)的演化路徑。研究結(jié)果表明:當光電正反饋和光電負反饋強度固定不變時,在不同的偏置電流下1550 nm VCSEL可表現(xiàn)出規(guī)則脈沖態(tài)、準周期態(tài)、混沌脈沖態(tài)等非線性動力學態(tài)。固定偏置電流,調(diào)節(jié)光電正反饋或光電負反饋強度,1550 nm VCSEL也可呈現(xiàn)規(guī)則脈沖態(tài)、準周期態(tài)、混沌脈沖態(tài)等豐富的非線性動力學狀態(tài)。在光電正反饋下,對于較小偏置電流和弱反饋強度,激光器主要工作在穩(wěn)態(tài);隨著偏置電流的增加,1550 nm VCSEL輸出的動力學態(tài)在較大的一個偏置電流范圍內(nèi)隨光電正反饋強度的增加以規(guī)則脈沖態(tài)-準周期態(tài)-規(guī)則脈沖態(tài)的方式循環(huán)演化;在光電負反饋下,對于較小偏置電流和弱光電負反饋,激光器仍工作在穩(wěn)態(tài),隨著偏置電流增加,VCSEL輸出的動力學態(tài)通常隨負反饋強度的增加以規(guī)則脈沖態(tài)-準周期態(tài)-規(guī)則脈沖態(tài)的方式循環(huán)演化到混沌脈沖態(tài),但當偏置電流增加到一定值后,1550 nm VCSEL輸出的動力學態(tài)隨負反饋強度的增加主要以規(guī)則脈沖態(tài)-準周期態(tài)-混沌脈沖態(tài)的方式循環(huán)演化。此外,我們給出了激光器在這兩種光電反饋下的非線性動力學狀態(tài)在偏置電流和反饋強度構(gòu)成的參數(shù)空間的分布。
[Abstract]:Semiconductor lasers can produce a series of nonlinear dynamic behaviors such as single period, injection locking, quasi-period, chaos and so on under external disturbances such as optical feedback, optical injection, optoelectronic feedback and so on. Chaotic secure communication, neurophotonics, true random number acquisition and other fields have great potential applications. Compared with conventional side emitting semiconductor laser (EELs), the vertical cavity surface emitting laser (VCSELs) has lower threshold current, smaller volume, smaller far-field divergence angle and lower coupling loss to fiber. The advantages of easy to realize dynamic single longitudinal mode output and easy to integrate in large scale have attracted much attention. In particular, the long wavelength (1310 nm-1550 nm) VCSELs) located in the optical fiber communication window has become a hot topic in recent years because of its compatibility with existing optical fiber systems. At present, the research based on the nonlinear dynamic characteristics of VCSELs is mainly focused on optical feedback and optical injection. The research on nonlinear dynamic characteristics of VCSELs based on optoelectronic feedback is mostly based on theoretical analysis, but there are few related experimental reports. Therefore, the experimental study of the nonlinear dynamic characteristics of 1550 nm VCSELs with optoelectronic feedback has certain application value. In this paper, the dynamic characteristics of 1550 nm VCSELs under both optoelectronic positive feedback and optoelectronic negative feedback are studied experimentally, and the evolution paths of these dynamic states are analyzed. The results show that when the intensity of the positive feedback and the negative feedback is fixed, the nonlinear dynamic states such as regular pulse state, quasi-periodic state and chaotic pulse state can be observed at different bias currents for 1550 nm VCSEL. Fixed bias current, adjusting the intensity of optoelectronic positive feedback or optoelectronic negative feedback can also present regular pulse state, quasi periodic state, chaotic pulse state and other rich nonlinear dynamic states. For the smaller bias current and the weak feedback intensity, the laser mainly works in the steady state under the optoelectronic positive feedback. With the increase of bias current, the dynamic state of 1550 nm VCSEL output evolves in a larger range of bias current with the increase of positive photoelectric feedback intensity in a regular pulse state, quasi periodic state and regular pulse state, and under the negative optoelectronic feedback, the dynamic state evolves in a regular pulse state, a quasi periodic state and a regular pulse state in a large range of bias current. For small bias current and weak optoelectronic negative feedback, the laser still works in steady state. With the increase of bias current, the dynamic state of VCSEL output usually evolves from regular pulse state, quasi periodic state to regular pulse state to chaotic pulse state with the increase of negative feedback intensity. However, when the bias current increases to a certain value, the dynamic state of 1550 nm VCSEL output evolves with the increase of negative feedback intensity, mainly in the form of regular pulse state, quasi-periodic state and chaotic pulse state. In addition, we give the distribution of the nonlinear dynamic state of the laser in the parameter space of the bias current and the feedback intensity under these two kinds of optoelectronic feedback.
【學位授予單位】：西南大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN248;O322

【參考文獻】

相關(guān)期刊論文 前10條

1 黃守文;陳建軍;夏光瓊;楊欣;吳正茂;;光電反饋1550nm垂直腔表面發(fā)射激光器偏振雙穩(wěn)特性[J];激光與光電子學進展;2016年07期

2 何洋;鄧濤;邱海英;朱萬清;吳正茂;夏光瓊;;光電反饋下光注入VCSELs的動力學特性[J];光子學報;2016年01期

3 王小發(fā);吳正茂;夏光瓊;;光反饋誘發(fā)長波長垂直腔面發(fā)射激光器低功耗偏振開關(guān)[J];物理學報;2016年02期

4 周婭;吳正茂;樊利;孫波;何洋;夏光瓊;;基于橢圓偏振光注入垂直腔表面發(fā)射激光器的正交偏振模式單周期振蕩產(chǎn)生兩路光子微波[J];物理學報;2015年20期

5 顏森林;;Period-one characteristic in an optoelectronic delayed feedback semiconductor laser and its application in sensing[J];Chinese Optics Letters;2015年04期

6 陳建軍;夏光瓊;吳正茂;;Power-induced polarization switching and bistability characteristics in 1550-nm VCSELs subjected to orthogonal optical injection[J];Chinese Physics B;2015年02期

7 劉瑩瑩;潘煒;江寧;項水英;;多延時互耦合半導體激光器的實時混沌同步特性[J];光子學報;2012年09期

8 張明江;劉鐵根;李靜霞;王云才;;線寬增強因子對外光注入半導體激光器非線性單周期振蕩特性的影響[J];光子學報;2011年04期

9 宗楠;李成明;陳亞輝;崔大復;許祖彥;;光泵垂直擴展腔面發(fā)射半導體激光器的研究進展[J];紅外與激光工程;2007年06期

10 韓力英;賈春輝;劉磊;劉立艷;張存善;趙紅東;;垂直腔面發(fā)射激光器的特性分析[J];光子技術(shù);2006年04期

相關(guān)博士學位論文 前1條

1 張祥偉;高功率垂直腔面發(fā)射激光器的偏振控制[D];中國科學院研究生院（長春光學精密機械與物理研究所）;2013年

相關(guān)碩士學位論文 前1條

1 邵夢姣;795nm垂直腔面發(fā)射激光器研究[D];浙江大學;2014年

，

本文編號：2218827