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Laser device with a beam carrying controlled orbital angular momentum

机译：光束控制轨道角动量的激光装置

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摘要

A laser device is provided for generating a helical-shaped optical wave and includes: (i) a gain region located between one first end defined by a first mirror and a second end defined by an exit region, (ii) a second mirror arranged so as to form with the first mirror an optical cavity including the gain region and a gap between the exit region and the second mirror, (iii) apparatus for pumping the gain region so as to generate the optical wave, wherein the laser device further includes at least one apparatus for shaping the light intensity and/or phase profiles of the optical wave and arranged for selecting at least one rotary-symmetrical transverse mode of the optical wave, the rotary-symmetrical transverse mode being chosen between those with a radial index equal to zero and with an azimuthal index being an integer with a module higher or equal to 1.
机译：提供了一种用于产生螺旋形光波的激光器装置，该激光器装置包括：（i）位于由第一反射镜限定的一个第一端与由出口区域限定的第二端之间的增益区域，（ii）第二反射镜布置成为了与第一反射镜一起形成包括增益区域以及在出射区域和第二反射镜之间的间隙的光学腔，（iii）用于泵浦增益区域以产生光波的设备，其中，激光装置还包括：至少一个用于整形光波的光强度和/或相位分布图的装置，并布置成用于选择光波的至少一种旋转对称横向模式，该旋转对称横向模式在径向指数等于零，方位角索引是一个整数，模数大于或等于1。

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