Non-Reciprocal Response in Femtosecond Ring Lasers

9219450迪尔，我们的初步测量表明，环形激光器的两束反推光束在频率上没有耦合。这意味着飞秒(飞秒)环形激光器是一种对反向传输光束之间的微小(小于10-12米)光程差非常敏感的探测器。这种路径差可以由旋转速度)、电光效应(可以以飞秒的时间分辨率探测到10-6量级的相移)、运动(菲涅尔阻力测量)、磁场(法拉第效应)引起。我们建议将这些独特的性质用于各种应用，如检测微小运动，研究超快探测器和电路的动力学，以及与三能级(V组态的A)系统的相干相互作用。我们还将应用我们对飞秒染料激光器中对传模之间不存在耦合的理解，来研制具有类似特性的锁模半导体环形激光器。*jE，j！！F j j(Times New Roman符号&amp；Arial“Hr 2 2)1 Cassandra Queen Cassandra Queen

9219450 Diels Our preliminary measurements have shown that the two counterpropgating beams of a ring laser are not coupled in frequency. The implication is that the fs (femtosecond) ring laser is an exceptionally sensitive detector for minute (less than 10-12 m) optical path difference between the counterpropagating beams. Such path difference can be induced by rotation rate), by electro-optic effect (a phase shift of the order of 10-6 can be detected with fs temporal resolution), by motion (Fresnel drag measurements), by magnetic fields (Faraday effect). We propose to explopit these unique properties for various applications, such as detection of small motion, study of the dynamics of ultrafast detectors and circuits, and coherent interactions with 3 level (A of V configuration) systems. We will also apply our understanding of the absence of coupling between counterpropagating modes in the fs dye laser, to develop mode-locked semiconductor ring laser with similar properties. *** j e j ! ! F j j ( Times New Roman Symbol & Arial " h r 2 2 ) 1 Cassandra Queen Cassandra Queen