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公开(公告)号：US09281652B1
公开(公告)日：2016-03-08
申请号：US13532681
申请日：2012-06-25
CPC分类号： H01S3/1083 , H01S3/025 , H01S3/0606 , H01S3/0615 , H01S3/0621 , H01S3/08054 , H01S3/08059 , H01S3/08081 , H01S3/082 , H01S3/11 , H01S3/113 , H01S3/1611
摘要： A laser system includes a laser resonator having a laser resonator volume and a gain block disposed therein, the gain block being configured to emit light at a predetermined laser wavelength, and an OPO unstable resonator having an OPO unstable resonator volume, the OPO unstable resonator optically coupled to the laser resonator and configured to receive light therefrom, wherein a portion of the OPO unstable resonator volume is situated with respect to the laser resonator volume so as to form an overlapping volume.
摘要翻译： 激光系统包括具有激光谐振器体积的激光谐振器和设置在其中的增益块，所述增益块被配置为以预定的激光波长发光，以及具有OPO不稳定谐振器体积的OPO不稳定谐振器，OPO不稳定谐振器 耦合到所述激光谐振器并且被配置为从其接收光，其中所述OPO不稳定谐振器体积的一部分相对于所述激光谐振器体积被定位，以便形成重叠的体积。
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公开(公告)号：US09246299B2
公开(公告)日：2016-01-26
申请号：US13566144
申请日：2012-08-03
CPC分类号： H01S3/0606 , C23C14/02 , C23C14/28 , C23C16/27 , G02B6/1223 , H01L21/02115 , H01L21/02181 , H01L21/02183 , H01L21/02194 , H01L21/02266 , H01L21/3205 , H01L31/024 , H01L31/18 , H01S3/0071 , H01S3/0407 , H01S3/042 , H01S3/0615 , H01S3/0621 , H01S3/08027 , H01S3/08086 , H01S3/08095 , H01S3/0915 , H01S3/092 , H01S3/093 , H01S3/11 , H01S3/1601 , H01S3/1623 , H01S3/1625 , H01S3/163 , H01S3/1633 , H01S3/1636 , H01S3/1666 , H01S3/23 , H01S3/2316 , H01S3/2333
摘要： An economical slab laser for high power applications. The laser is a lamp driven slab design with face-to-face beam propagation and an end reflection that redirects the amplified radiation back out the input surface. Also presented is a side-to-side larger amplifier configuration, permitting very high average and peak powers due to the electrical efficiency of converting and getting energy into the crystal, optical extraction efficiency, and scalability of device architecture. Cavity filters adjacent to pump lamps convert the unusable UV portion of the pump lamp spectrum into light in the absorption band of the slab laser thereby increasing the overall pump efficiency. The angle of the end reflecting surface is changed to cause the exit beam to be at a different angle than the inlet beam, thereby eliminating the need to separate the beams external to the laser with the subsequent loss of power.
摘要翻译： 一种用于大功率应用的经济型板式激光器。 激光器是具有面对面光束传播的灯驱动平板设计，以及将放大的辐射重定向到输入表面的端反射。 还提出了一种从侧到大的放大器配置，由于将晶体转换和获得能量的电效率，光提取效率和器件架构的可扩展性，因此允许非常高的平均和峰值功率。 与泵灯相邻的腔过滤器将泵灯光谱的不可用UV部分转换成板激光的吸收带中的光，从而提高整体泵效率。 改变端面反射面的角度，使出射光束成为与入射光束不同的角度，从而消除了在随后的功率损失下将激光外部的光束分开的需要。
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公开(公告)号：US08705586B2
公开(公告)日：2014-04-22
申请号：US12675125
申请日：2007-08-30
IPC分类号： H01S3/06
CPC分类号： H01S3/0632 , H01S3/0405 , H01S3/0606 , H01S3/0615 , H01S3/0621 , H01S3/0625 , H01S3/09415 , H01S3/109 , H01S3/2383 , H01S5/4031 , H01S2301/02
摘要： To suppress the amplification of spontaneous emission light in a principal plane width direction to thereby suppress a gain in directions other than a beam axis direction and output a high-power laser, in a solid-state laser element of a plane waveguide type that causes a fundamental wave laser beam to oscillate in a beam axis direction in a laser medium of a flat shape and forms a waveguide structure in a thickness direction as a direction perpendicular to a principal plane of the flat shape in the laser medium, inclined sections 12 are provided on both sides of the laser medium, the inclined sections 12 inclining a predetermined angle to reflect spontaneous emission light in the laser medium to a principal plane side of the flat shape, the spontaneous emission light traveling in the beam axis direction and a principal plane width direction as a direction perpendicular to the thickness direction.
摘要翻译： 为了抑制在主平面宽度方向上的自发发射光的放大，从而抑制波束轴方向以外的方向的增益并输出大功率激光，在平面波导型的固体激光元件中， 基波激光束在平坦形状的激光介质中在光束轴方向上振荡，并且在激光介质中形成作为与平面形状的主平面垂直的方向的厚度方向的波导结构，设置倾斜部12 在激光介质的两侧，倾斜部分12倾斜预定角度以将激光介质中的自发发射光反射到平面形状的主平面侧，在射束轴线方向上行进的自发射光和主平面宽度 方向作为垂直于厚度方向的方向。
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公开(公告)号：US08599896B2
公开(公告)日：2013-12-03
申请号：US13283924
申请日：2011-10-28
申请人： Adolf Giesen , Jens Mende , Gerhard Spindler , Jochen Speiser
发明人： Adolf Giesen , Jens Mende , Gerhard Spindler , Jochen Speiser
IPC分类号： H01S3/082
CPC分类号： H01S3/07 , H01S3/0604 , H01S3/0615 , H01S3/0621 , H01S3/08 , H01S3/0804 , H01S3/08072 , H01S3/081 , H01S3/0818 , H01S3/083 , H01S3/10053
摘要： A laser amplifier system is provided which comprises a resonator with optical resonator elements which determine a course of a resonator radiation field which propagates along an optical axis and at least one laser-active medium (LM). The resonator is designed as a split resonator and has a first resonator section which extends from a first virtual plane of separation and a second resonator section which extends from a second virtual plane of separation. The resonator sections are dimensioned optically such that the resonator radiation field has radiation field states corresponding to the same resonator modes in each of the virtual planes of separation. An amplifying unit optically independent of the resonator is arranged between the first and the second virtual planes of separation. The amplifying unit comprises the at least one laser-active medium and couples the radiation field states in a neutral manner with respect to the resonator modes.
摘要翻译： 提供了一种激光放大器系统，其包括具有光学谐振器元件的谐振器，该谐振器元件确定沿着光轴传播的谐振器辐射场的过程和至少一个激光活动介质（LM）。 谐振器被设计为分离谐振器，并且具有从第一虚拟分离平面延伸的第一谐振器部分和从第二虚拟分离平面延伸的第二谐振器部分。 谐振器部分被光学地尺寸化，使得谐振器辐射场具有对应于每个虚拟分离平面中的相同谐振器模式的辐射场状态。 独立于谐振器的放大单元布置在第一和第二虚拟分离平面之间。 所述放大单元包括所述至少一个激光激活介质，并以相对于所述谐振器模式为中性的方式耦合所述辐射场状态。
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公开(公告)号：US20130301662A1
公开(公告)日：2013-11-14
申请号：US13566144
申请日：2012-08-03
CPC分类号： H01S3/0606 , C23C14/02 , C23C14/28 , C23C16/27 , G02B6/1223 , H01L21/02115 , H01L21/02181 , H01L21/02183 , H01L21/02194 , H01L21/02266 , H01L21/3205 , H01L31/024 , H01L31/18 , H01S3/0071 , H01S3/0407 , H01S3/042 , H01S3/0615 , H01S3/0621 , H01S3/08027 , H01S3/08086 , H01S3/08095 , H01S3/0915 , H01S3/092 , H01S3/093 , H01S3/11 , H01S3/1601 , H01S3/1623 , H01S3/1625 , H01S3/163 , H01S3/1633 , H01S3/1636 , H01S3/1666 , H01S3/23 , H01S3/2316 , H01S3/2333
摘要： An economical slab laser for high power applications. The laser is a lamp driven slab design with face-to-face beam propagation and an end reflection that redirects the amplified radiation back out the input surface. Also presented is a side-to-side larger amplifier configuration, permitting very high average and peak powers due to the electrical efficiency of converting and getting energy into the crystal, optical extraction efficiency, and scalability of device architecture. Cavity filters adjacent to pump lamps convert the unusable UV portion of the pump lamp spectrum into light in the absorption band of the slab laser thereby increasing the overall pump efficiency. The angle of the end reflecting surface is changed to cause the exit beam to be at a different angle than the inlet beam, thereby eliminating the need to separate the beams external to the laser with the subsequent loss of power.
摘要翻译： 一种用于大功率应用的经济型板式激光器。 激光器是具有面对面光束传播的灯驱动平板设计，以及将放大的辐射重定向到输入表面的端反射。 还提出了一种从侧到大的放大器配置，由于将晶体转换和获得能量的电效率，光提取效率和器件架构的可扩展性，因此允许非常高的平均和峰值功率。 与泵灯相邻的腔过滤器将泵灯光谱的不可用UV部分转换成板激光的吸收带中的光，从而提高整体泵效率。 改变端面反射面的角度，使出射光束成为与入射光束不同的角度，从而消除了在随后的功率损失下将激光外部的光束分开的需要。
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公开(公告)号：US07830946B2
公开(公告)日：2010-11-09
申请号：US11394957
申请日：2006-03-29
IPC分类号： H01S3/08
CPC分类号： H01S3/0602 , H01S3/0604 , H01S3/0606 , H01S3/061 , H01S3/0615 , H01S3/094084 , H01S3/0941 , H01S3/23 , H01S2301/02
摘要： A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. Such an invention, as disclosed herein, uses diffraction gratings to increase gain, stored energy density, and pumping efficiency of solid-state laser gain media, such as, but not limited to rods, disks and slabs. By coupling predetermined gratings to solid-state gain media, such as crystal or ceramic laser gain media, ASE and parasitic oscillation modes can be effectively suppressed.
摘要翻译： 引入了一种用于抑制高平均功率激光器中的ASE和寄生振荡模式的新颖方法和装置。 如本文公开的这样的发明使用衍射光栅来增加固体激光增益介质的增益，储存能量密度和泵送效率，例如但不限于棒，盘和板。 通过将预定光栅耦合到诸如晶体或陶瓷激光增益介质的固态增益介质，可以有效地抑制ASE和寄生振荡模式。
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公开(公告)号：US07756167B2
公开(公告)日：2010-07-13
申请号：US12096236
申请日：2006-12-05
申请人： Peter John Veitch
发明人： Peter John Veitch
IPC分类号： H01S3/11
CPC分类号： H01S3/083 , H01S3/0615 , H01S3/0815 , H01S3/10092 , H01S3/115
摘要： A system for producing a laser light pulse is disclosed. The system includes a travelling wave or ring laser incorporating a gain medium with polarizing means for introducing substantially polarized radiation having a first polarization state into the travelling wave laser and output coupling means to substantially output couple radiation having an output polarization state from the travelling wave laser. The system further includes polarization changing means incorporated into the optical path of the travelling wave laser for changing the polarization of radiation having the first polarization state to a seeding polarization state, wherein radiation with the seeding polarization state seeds the gain medium, and radiation intensity modulation means for modulating the intensity of radiation in the travelling wave laser to vary the feedback of radiation into the gain medium, wherein the radiation intensity modulation means also modulates the radiation with respect to the output coupling means.
摘要翻译： 公开了一种用于产生激光脉冲的系统。 该系统包括具有增益介质的行波或环形激光器，该增益介质具有用于将具有第一偏振状态的基本上极化的辐射引入到行波激光器中并具有输出耦合装置的基本上输出具有来自行波激光器的输出偏振状态的耦合辐射的偏振装置 。 该系统还包括结合到行波激光器的光路中的偏振改变装置，用于将具有第一偏振状态的辐射的偏振改变为播种极化状态，其中具有接种极化状态的辐射使增益介质种子，并且辐射强度调制 用于调制行波激光器中的辐射强度以改变辐射进入增益介质的反馈的装置，其中辐射强度调制装置还相对于输出耦合装置调制辐射。
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公开(公告)号：US20100086001A1
公开(公告)日：2010-04-08
申请号：US12551973
申请日：2009-09-01
申请人： Jeffrey G. Manni
发明人： Jeffrey G. Manni
IPC分类号： H01S3/06
CPC分类号： H01S3/0941 , H01S3/005 , H01S3/0405 , H01S3/042 , H01S3/0606 , H01S3/0615 , H01S3/0625 , H01S3/063 , H01S3/08077 , H01S3/08095 , H01S3/083 , H01S3/1611 , H01S3/1643 , H01S3/2325 , H01S3/2333 , H01S3/2341 , H01S2301/02
摘要： A laser amplifier includes a laser active slab with a source of pump power to amplify an input laser beam, the laser active slab including a block of laser active material having opposed lateral faces defining a wedge lateral dihedral angle specified to minimize parasitic amplified spontaneous emission. The laser amplifier may include one or more external mirrors highly reflecting at the lasing wavelength positioned and oriented to provide for zig-zag passes through the gain sheet for the input laser beam to yield a multi-pass-amplified laser beam. The source of pump power may be one or more laser diode bars and microlenses producing a gain sheet in the laser active slab.
摘要翻译： 激光放大器包括具有泵浦功率源的激光活性板，用于放大输入激光束，所述激光活性板包括激光活性材料块，所述激光活性材料块具有相对的侧面，其限定楔形横向二面角，以最小化寄生放大的自发发射。 激光放大器可以包括一个或多个外部反射镜，其以定位的定位和定向的激光波长高反射，以提供输入激光束的增益片的锯齿形通过，以产生多通道放大的激光束。 泵浦功率源可以是在激光活性板中产生增益片的一个或多个激光二极管条和微透镜。
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公开(公告)号：US07545837B2
公开(公告)日：2009-06-09
申请号：US11109912
申请日：2005-04-19
申请人： Michio Oka
发明人： Michio Oka
IPC分类号： H01S3/10
CPC分类号： H01S3/109 , H01S3/005 , H01S3/0615 , H01S3/0816 , H01S3/094084 , H01S3/09415 , H01S3/1611 , H01S3/1643 , H01S5/4012 , H01S5/4031 , H04N9/3129
摘要： A one-dimensional transverse multiple mode laser is used for a one-dimensional illumination apparatus. A pumping light source, and a laser medium and a wavelength conversion device (nonlinear optical crystal or a nonlinear optical device) which are disposed in a resonator, are provided, and the nonlinear optical crystal or a nonlinear optical device is irradiated with a line beam obtained by exciting the laser medium in an elliptic transverse mode pattern. Then, a one-dimensional light modulation device is irradiated with the wavelength-converted line beam, and scanning with the beam modulated by the modulation device is conducted to produce a two-dimensional image. For example, in a green illumination optical system, in the case where the nonlinear optical device for obtaining visible rays through second harmonic generation from IR rays oscillated by a solid state laser medium has a periodical poling structure, stoichiometric composition periodical poling lithium tantalate having been subjected to vapor transport equilibration is used, whereby reliability is enhanced and a reduction in cost can be achieved through mass production.
摘要翻译： 一维横模多模激光器用于一维照明装置。 提供了一种泵浦光源，以及设置在谐振器中的激光介质和波长转换装置（非线性光学晶体或非线性光学装置），并且将非线性光学晶体或非线性光学装置用线束 通过以椭圆横模式图案激发激光介质获得。 然后，用波长转换线束照射一维光调制装置，进行用调制装置调制的光束进行扫描，生成二维图像。 例如，在绿色照明光学系统中，在通过由固体激光介质振荡的IR光获得二次谐波产生的可见光的非线性光学装置具有周期性极化结构的情况下，化学计量组成周期性极化钽酸锂 使用蒸气输送平衡，从而可靠性得到提高，并且通过批量生产可以实现成本的降低。
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公开(公告)号：US07505499B2
公开(公告)日：2009-03-17
申请号：US11013203
申请日：2004-12-15
申请人： Craig First , Xinbing Liu
发明人： Craig First , Xinbing Liu
IPC分类号： H01S3/14
CPC分类号： H01S3/0606 , H01S3/0615 , H01S3/063 , H01S3/08095 , H01S3/0941 , H01S3/2333
摘要： A slab laser amplifier with parasitic oscillation suppression has a plurality of angled pump faces related to one another in order to decrease likelihood of parasitic oscillations, with internal beam incidence angles at total internal reflection that alleviate need for reflective coatings. No polished surfaces of gain material comprising the amplifier are parallel to one another. A beam path within the gain material is such that all incident angles of the beam path upon the two main faces and the common end face are greater than a critical angle required for total internal reflection, thereby alleviating need for reflective coatings. Based on an index of refraction of the gain material, and based on a diameter of the laser beam, dimensions of the gain material are selected to maximize beam overlap in a pumped volume of the gain material.
摘要翻译： 具有寄生振荡抑制的平板激光放大器具有彼此相关的多个倾斜的泵浦面，以便减少寄生振荡的可能性，其中内部射束入射角在全内反射处可减轻对反射涂层的需要。 不包括放大器的增益材料的抛光表面彼此平行。 增益材料内的光束路径使得在两个主面和公共端面上的光束路径的所有入射角大于全内反射所需的临界角，从而减轻对反射涂层的需要。 基于增益材料的折射率，并且基于激光束的直径，选择增益材料的尺寸以使增益材料的泵送体积中的束重叠最大化。
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