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公开(公告)号：US20070110435A1
公开(公告)日：2007-05-17
申请号：US10582713
申请日：2004-12-09
CPC分类号： B82Y20/00 , G01S7/481 , G01S17/107 , G01S17/89 , G02F1/0126 , G02F1/01716
摘要： The invention relates to a laser active optronic system with improved detectivity, especially an eye-safe optronic system. The system comprises a channel for the emission by an emission source of a laser beam illuminating a target and a channel for receiving the wave backscattered by the target. An optical switching device is positioned in the receive channel, said optical switching device receiving said backscattered wave and comprising an optical gain medium and pumping means for pumping said gain medium, said gain medium being absorbent at the wavelength of the laser and becoming substantially transparent when it is pumped, in such a way as to allow the switching device to be actuated in the on mode or off mode respectively. It further includes a control unit for controlling the pumping means, allowing the switching device to be actuated in the on mode in at least one temporal window of predetermined duration, triggered at a predetermined instant after the start of emission of the illuminating laser beam.
摘要翻译： 本发明涉及具有改进的检测性的激光有源光电系统，特别是眼睛安全的光电系统。 该系统包括用于通过照射目标的激光束的发射源发射的通道和用于接收由目标反向散射的波的通道。 光学开关装置位于接收通道中，所述光学开关装置接收所述背向散射波并且包括光学增益介质和用于泵浦所述增益介质的泵送装置，所述增益介质在激光器的波长处是吸收剂并变得基本上是透明的 它被泵送，以允许开关装置分别在接通模式或关闭模式下被致动。 它还包括用于控制泵送装置的控制单元，允许开关装置在预定持续时间的至少一个时间窗口中以开启模式被致动，在照明激光束的发射开始之后的预定时刻被触发。
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公开(公告)号：US5444571A
公开(公告)日：1995-08-22
申请号：US910529
申请日：1992-07-08
CPC分类号： G02F1/37 , G02F1/39 , G02F2001/3542
摘要： Disclosed is a non-linear optical device in which the non-linear medium comprises a circular surface on which the light beam to be processed gets reflected. A structure such as this can be used to resolve the difficulties of making mirrors of the cavity containing the non-linear medium.
摘要翻译： 公开了一种非线性光学装置，其中非线性介质包括其上待处理的光束被反射的圆形表面。 可以使用这样的结构来解决制造包含非线性介质的空腔的镜子的困难。
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公开(公告)号：US5375131A
公开(公告)日：1994-12-20
申请号：US37552
申请日：1993-03-24
CPC分类号： H01S3/305 , H01S2301/20 , H01S3/08063 , H01S3/08068
摘要： A laser includes a gas enclosure placed in an optical cavity and receiving a pump beam to generate at least one first-order and one second-order Stokes wave. One of the mirrors of the cavity is transparent to wavelengths which are higher than the first-order Stokes wave.
摘要翻译： 激光器包括放置在光学腔中并接收泵浦光束以产生至少一个一阶和一个二阶斯托克斯波的气体外壳。 腔的一个反射镜对于高于一阶斯托克斯波的波长是透明的。
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公开(公告)号：US07548367B2
公开(公告)日：2009-06-16
申请号：US10582713
申请日：2004-12-09
CPC分类号： B82Y20/00 , G01S7/481 , G01S17/107 , G01S17/89 , G02F1/0126 , G02F1/01716
摘要： A laser active optronic system has an emission channel for the emission by an emission source of a laser beam which illuminates a target, and a receiving channel for receiving the wave backscattered by the target. An optical switching device is positioned in the receiving channel to receive the backscattered wave and has an optical gain medium and pumping means for pumping the gain medium. The gain medium is absorbent at the wavelength of the laser and becomes substantially transparent when it is pumped to allow the switching device to be actuated in the on mode or off mode respectively. A control unit for controlling the pumping means, allows the switching device to be actuated in the on mode in at least one temporal window of predetermined duration, triggered at a predetermined instant after the start of emission of the illuminating laser beam.
摘要翻译： 激光有源光电系统具有用于通过照射目标的激光束的发射源的发射的发射通道和用于接收由目标反向散射的波的接收通道。 光学开关装置位于接收通道中以接收背向散射波，并具有用于泵送增益介质的光学增益介质和泵送装置。 增益介质在激光器的波长处是吸收剂，并且当其被泵送时变得基本上是透明的，以允许开关装置分别在接通模式或关闭模式下被致动。 用于控制泵送装置的控制单元允许开关装置在预定持续时间的至少一个时间窗口中以开启模式被致动，在照明激光束的发射开始之后的预定时刻被触发。
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公开(公告)号：US5384801A
公开(公告)日：1995-01-24
申请号：US949125
申请日：1992-09-23
CPC分类号： H01S3/08004 , G02B5/207
摘要： A laser is capable of working at a wavelength L.sub.2 from an active material capable of generating radiating emissions at at least two wavelengths L.sub.1 and L.sub.2, through the presence of a semiconductor plate in the laser cavity. Notably, the laser can generate wavelengths ranging from 1.4 .mu.m to 2 .mu.m, a range in which the optical damage threshold of the eye is high, from an Nd.sup.3+ doped YAG having numerous radiating emission wavelengths ranging from 0.946 .mu.m to 1.8 .mu.m.
摘要翻译： 激光器能够通过激光腔中的半导体板的存在，从能够产生至少两个波长L1和L2的辐射发射的活性材料以波长L2工作。 值得注意的是，激光器可以产生从1.4μm到1.8μm的具有许多辐射发射波长的Nd3 +掺杂YAG的范围从1.4μm到2μm的范围，其中眼睛的光学损伤阈值高的范围 。
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公开(公告)号：US5088096A
公开(公告)日：1992-02-11
申请号：US547146
申请日：1990-07-03
摘要： A tunable laser source comprising a laser source emitting a pump beam towards a Raman cell. It transmits a beam at a Stokes wavelength to a non-linear crystal. Depending on the angle of this beam with the optical axis of the crystal, the non-linear crystal transmits two output waves at wavelengths that are different from the Stokes wavelength.
摘要翻译： 一种可调激光源，包括向拉曼细胞发射泵浦光束的激光源。 它将斯托克斯波长的光束传输到非线性晶体。 根据该光束与晶体的光轴的角度，非线性晶体透过不同于斯托克斯波长的波长的两个输出波。
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公开(公告)号：US5086433A
公开(公告)日：1992-02-04
申请号：US536523
申请日：1990-06-12
IPC分类号： H01S3/04 , H01S3/042 , H01S3/0941
CPC分类号： H01S3/042 , H01S3/0941 , H01S3/025 , H01S3/0404 , H01S3/0407 , H01S3/094057 , H01S3/1022
摘要： The field of the invention is that of power lasers pumped by coherent optical sources, such as laser diodes. The aim of the invention is to provide a structure of illumination of a laser rod enabling both efficient removal of the calories released by the coherent optical pumping sources and high homogeneity of the rod pumping operations. The structure is characterized in that the optical sources of at least one set of optical sources are arranged on one and the same delocalized support and in that said structure comprises reflecting means for the transmission, towards the rod, of the illumination beam from said set of delocalized optical sources.
摘要翻译： 本发明的领域是由相干光源（例如激光二极管）泵浦的功率激光器。 本发明的目的是提供激光棒的照明结构，其能够有效地去除由相干光泵浦源释放的卡路里和棒抽吸操作的高均匀性。 该结构的特征在于，至少一组光源的光源被布置在同一个离域支撑上，并且所述结构包括反射装置，用于从所述一组 离域光源。
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公开(公告)号：US5077750A
公开(公告)日：1991-12-31
申请号：US527892
申请日：1990-05-24
IPC分类号： H01S3/094 , H01S3/0941 , H01S3/23
CPC分类号： H01S3/09415 , H01S3/2383 , H01S3/08059 , H01S3/09408 , H01S3/10092 , H01S3/109
摘要： Disclosed is a power laser in which several laser diodes emit pump beams towards amplifier media. The beams coming from these amplifier media are combined by an optical system to give a common beam transmitted to an output mirror. The mirror and a reflecting face of each amplifier forms an optical cavity.
摘要翻译： 公开了一种功率激光器，其中几个激光二极管向放大器介质发射泵浦光束。 来自这些放大器介质的光束通过光学系统组合以给出传输到输出镜的公共光束。 每个放大镜的反射镜和反射面形成光腔。
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9.发明授权
公开(公告)号：US5077466A
公开(公告)日：1991-12-31
申请号：US544895
申请日：1990-06-28
IPC分类号： H01L29/205 , H01L31/0352
CPC分类号： B82Y20/00 , H01L29/205 , H01L31/0352 , H01L31/035236
摘要： A quantum well electromagnetic wave detector disclosed having a semiconductor structure including a stacking of layers of material wherein the widths of the forbidden gaps of the materials are used to obtain a profile of potential energy corresponding to the bottom of the conduction band for the electrons in such a way that a first layer has a relatively low energy level with second and third layers having an intermediate energy higher than the energy of the first layer and fourth and fifth layers having high energy greater than either the intermediate or the low energy levels. The energy corresponding to a first permitted level is lower than the potential energy at the bottom of a conduction band of both of the materials used to make the second and third layers and the energy of the second level is between the potential energy at the bottom of a conduction band of both materials of the second and third layers and the potential energy of the bottom of the conduction band of the materials of the fourth and fifth layers. The first permitted level of energy of the quantum well is populated with electrons and an electric field is applied perpendicular to the plane of the structure.
摘要翻译： 公开了一种量子阱电磁波检测器，其具有半导体结构，该半导体结构包括堆叠材料层，其中材料的禁止间隙的宽度用于获得对应于这样的电子的导带底部的势能分布 第一层具有相对低的能级的方式，其中第二层和第三层的中间能量高于第一层的能量，第四层和第五层的能量大于中间层或低层的能级。 对应于第一允许水平的能量低于用于制造第二和第三层的两种材料的导带底部的势能，并且第二级的能量在第二级的底部的势能之间 第二层和第三层的两种材料的导带和第四层和第五层的材料的导带的底部的势能。 量子阱的第一允许电平的能级被电子填充，并且电场垂直于结构的平面施加。
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公开(公告)号：US4927245A
公开(公告)日：1990-05-22
申请号：US238123
申请日：1988-08-30
CPC分类号： G02F1/0541 , G02B6/124 , G02F1/0126 , G02F2/02
摘要： A frequency shifter to shift the frequency of a guided wave in the medium infrared range comprises:an optical guide, formed by semiconducting materials, on the surface of which a diffraction grating is created by carriers photo-induced by a periodic illumination.standard optic means projecting, on the surface of the guide, two wave beams having different frequencies in the near infrared or visible range, to produce, by interference, a periodic illumination of the surface of the guide. This illumination induces photocarriers constituting a diffraction grating which is in translational motion at constant speed. This motion shifts the frequency of the diffracted wave by Doppler effect.
摘要翻译： 用于移动中红外范围的导波频率的变频器包括：由半导体材料形成的光导，其表面上由周期性照明引起的载流子产生衍射光栅。 标准光学装置在引导件的表面上投射在近红外或可见光范围内具有不同频率的两个波束，以通过干涉产生引导件表面的周期性照明。 该照明引起构成以恒定速度平移运动的衍射光栅的光载流子。 该运动通过多普勒效应移动衍射波的频率。
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