基于白光腔的光学功能器件的设计与研究

项目名称： 基于白光腔的光学功能器件的设计与研究

项目编号： No.11474003

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 黄仙山

作者单位： 安徽工业大学

项目金额： 80万元

中文摘要： 白光腔是一种新型的谐振腔，这种腔的显著特性在于其能对很宽的频带实现共振，腔的品质因子和半高带宽不再是此消彼长的关系。利用其特殊的性质，我们将研究和设计两种基于白光腔的新型光学功能器件。第一个器件是基于白光腔的短脉冲激光器。根据傅里叶变换，频率和时间是一对共轭量，如果要在时域上形成短脉冲，必然要求很宽的频谱。而白光腔具有宽频共振特性，从而能够实现短脉冲激光器。第二个器件是小功率超快环共振器全光开关。全光开关的实用化需要低的操作功率和短的开关时间，但一般情况这两个条件不能同时满足。对于通常的双耦合共振环全光开关，操作功率与腔的Q值成反比，但开关时间与半高带宽成正比。将共振环内设计为白光腔使其既具有高Q值又具有低的半高带宽，从而可以克服这一困难。我们的研究对光子学和光开关的实用化有积极的促进作用。

中文关键词： 量子光学；原子自发辐射；量子干涉；白光腔

英文摘要： White light cavity is a new kind of resonator, in which wide band frequencies are resonant simultaneously. The Q factor is on longer inverse proportional to the FWHM. Based on its special character, we will study and design two kinds of optical devices. The first is the short-pulse laser based on white light cavity. According to the Fourier transform, the frequency and time is the amount of a pair of conjugate.If a short pulse obtained in the time domain, it inevitably requires a wide spectrum. Therefore,it is physically feasible to achieve short pulse laser by using white light cavity. The second is the full-optical switcher possessing low operating power and short switch time simultaneously. The useful optical switcher requires both the lower operating power and short switch time. However, these two requirements can not be fitted simutaneously. The reason is that the operating power is inversed to Q factor, while the operating time is proportional to FWHM. Though the combination of white light cavity can deal with such dilemma. Our project is promising in application of photonics and full-optical switcher.

英文关键词： quantum optics;atomic spontaneous emission;quantum interference;white light cavity