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1. 发明申请

US20180054042A1 HIGH POWER CW MID-IR LASER 审中-公开
公开(公告)号：US20180054042A1
公开(公告)日：2018-02-22
申请号：US15557916
申请日：2016-03-23
申请人： IPG PHOTONICS CORPORATION
发明人： Igor MOSKALEV
IPC分类号： H01S5/347 , H01S3/094 , H01S3/102 , H01S3/06 , H01S3/16 , H01S3/042 , H01S3/08 , H01S3/04
CPC分类号： H01S5/347 , H01S3/0408 , H01S3/042 , H01S3/0602 , H01S3/0604 , H01S3/0608 , H01S3/08072 , H01S3/094042 , H01S3/1026 , H01S3/162 , H01S3/1623 , H01S3/1628
摘要： The present invention provides a rotating chalcogenide gain media ring to provide un-precedented power generation with minimal thermal lensing for CW lasing in the mid-IR spectrum.

2. 发明授权

US08720219B1 All solid state optical cryocooler using intracavity optically pumped semiconductor lasers and a method of making the same 有权
标题翻译：所有使用腔内光泵浦半导体激光器的固态光学低温冷却器及其制造方法
公开(公告)号：US08720219B1
公开(公告)日：2014-05-13
申请号：US12984780
申请日：2011-01-05
申请人： Mansoor Sheik-Bahae
发明人： Mansoor Sheik-Bahae
IPC分类号： F25D23/00 , F25B21/00 , H01S3/04
CPC分类号： F25B23/00 , H01S3/0007 , H01S3/025 , H01S3/0408 , H01S3/042 , H01S3/0604 , H01S3/061 , H01S3/0615 , H01S3/09415 , H01S5/141 , H01S5/183
摘要： A device and corresponding method for cooling electronics is disclosed. The device is an all-solid-state optical cryocooler and can include an optically pumped semiconductor laser (OPSL); a cavity configured to receive and control absorption of the optically pumped semiconductor laser, the cavity having a high reflection (HR) surface and an anti-reflection (AR) surface; and a doped crystal housed within the cavity, the doped crystal configured to cool in response to input of the optically pumped semiconductor laser. The method can include supplying an intracavity optically pumped semiconductor lasers to a doped crystal within a cavity; and configuring the cavity to include a high reflection (HR) surface and an anti-reflection (AR) surface, the HR surface and AR surface formed on or in connection with the doped crystal to increase pump light absorption at the crystal within the cavity.
摘要翻译：公开了一种用于冷却电子设备的装置和相应的方法。该器件是全固态光学低温冷却器，并且可以包括光泵浦半导体激光器（OPSL）; 被配置为接收和控制所述光泵浦半导体激光器的吸收的空腔，所述空腔具有高反射（HR）表面和抗反射（AR）表面; 并且掺杂晶体容纳在腔内，掺杂晶体被配置为响应于光泵浦半导体激光器的输入而冷却。该方法可以包括向空腔内的掺杂晶体提供腔内光泵浦半导体激光器; 并且将所述空腔配置为包括高反射（HR）表面和抗反射（AR）表面，所述HR表面和AR表面形成在所述掺杂晶体上或与所述掺杂晶体结合，以增加在所述腔内的晶体处的泵浦光吸收。

3. 发明授权

US09800011B2 Dual channel method for pumping and cooling lasers and laser device 有权
公开(公告)号：US09800011B2
公开(公告)日：2017-10-24
申请号：US14149396
申请日：2014-01-07
申请人： The Board of Trustees of the University of Illinois
发明人： J. Gary Eden , John Darby Hewitt
IPC分类号： H01S3/094 , H01S3/22 , H01S3/04 , H01S3/095
CPC分类号： H01S3/094096 , H01S3/0408 , H01S3/094092 , H01S3/0941 , H01S3/095 , H01S3/2207 , H01S3/227
摘要： A laser pumping method pumps a primary amount of energy into a laser medium to populate an intermediate level near an upper laser level. A lesser amount of energy is pumped into the laser medium to populate an excited level that lies above the upper laser level and transfers atomic or molecular population to the upper laser level by a nonradiative process. A laser device includes a laser medium supporting four levels, including a lower laser level, an upper laser level, an excited level above the laser level from which population transfers to the upper laser level via nonradiative transition, and an intermediate level within a few kT of the upper laser level.

4. 发明授权

US09788406B2 Laser cooling via stimulated photon emissions 有权
公开(公告)号：US09788406B2
公开(公告)日：2017-10-10
申请号：US14546537
申请日：2014-11-18
申请人： The Boeing Company
发明人： Wade L. Klennert
IPC分类号： G21K1/00 , H05H3/00 , H01S3/042 , H01S3/04 , F25B23/00 , H01S3/16 , H01S3/17
CPC分类号： H05H3/00 , F25B23/00 , H01S3/0408 , H01S3/042 , H01S3/1618 , H01S3/17
摘要： An example laser cooling system may include a first laser to induce a transition of a plurality of electrons in a medium to an excited energy state via absorption of photons. The laser cooling system may also include a second laser to stimulate emission from the medium of emitted photons having a higher energy than an energy of the absorbed photons.

5. 发明授权

US6041610A Optical refrigerator using reflectivity tuned dielectric mirrors 失效
标题翻译：使用反射率调谐电介质镜的光学冰箱
公开(公告)号：US6041610A
公开(公告)日：2000-03-28
申请号：US289419
申请日：1999-04-09
申请人： Bradley C. Edwards , Melvin I. Buchwald , Richard I. Epstein
发明人： Bradley C. Edwards , Melvin I. Buchwald , Richard I. Epstein
IPC分类号： F25B23/00 , G02B7/18 , H01S3/00 , H01S3/04 , F25D23/00
CPC分类号： F25B23/003 , F25B23/00 , G02B7/1815 , H01S3/0007 , H01S3/04 , H01S3/0408
摘要： Optical refrigerator using reflectivity-tuned dielectric mirrors. Selected working materials can be optically pumped using monochromatic radiation such that the resulting fluorescence has an average photon energy higher than that of the pumping radiation; that is, net anti-Stokes fluorescence. If the quantum efficiency is sufficiently high, the working material will cool and optical refrigeration can be achieved. Parallel mirrored faces are employed to increase the optical path of the incident pumping radiation within the working material by multiple reflections. Reflectivity-tuned dielectric mirrors which allow higher-energy fluorescence photons to readily escape from the working material while inhibiting the escape of the lower-energy photons which are consequently partially trapped in the working material and ultimately reabsorbed and refluoresced at higher energies are employed. This increases the optical refrigerator efficiency. An efficient geometry for the cooling material is a disk having a large diameter and a small height, since the fluorescence can predominantly escape through the tuned mirror on one end face of the working material. An alternative cooling element could be approximately cubic with tuned mirrors on the sides as well as on one end. In another embodiment of the invention, photocells are used to convert escaping fluorescence energy into electricity, thereby reducing the power requirements of the optical refrigerator and reducing the amount of waste that must be removed from the vicinity of the working material.
摘要翻译：使用反射率调谐电介质镜的光学冰箱。所选择的工作材料可以使用单色辐射进行光泵浦，使得所得荧光的平均光子能量高于泵浦辐射的平均光子能量; 那就是净反斯托克斯荧光。如果量子效率足够高，则工作材料将冷却并且可以实现光学制冷。采用平行镜面以通过多次反射来增加工作材料内的入射泵浦辐射的光路。反射率调谐的电介质反射镜允许更高能量的荧光光子容易地从工作材料逸出，同时抑制低能量光子的逸出，因此部分地被捕获在工作材料中并且最终在较高能量下被再吸收和反射。这提高了光学冰箱的效率。用于冷却材料的有效几何形状是具有大直径和小高度的盘，因为荧光可以主要通过工作材料的一个端面上的调谐反射镜逃逸。替代的冷却元件可以是近似立方体，在侧面以及一端具有调整的反射镜。在本发明的另一个实施例中，光电池用于将荧光能量转换成电能，从而降低光学冰箱的功率需求并减少必须从工作材料附近去除的废物量。

6. 发明申请

US20150103855A1 LASER DESIGN 审中-公开
标题翻译：激光设计
公开(公告)号：US20150103855A1
公开(公告)日：2015-04-16
申请号：US13470081
申请日：2012-05-11
申请人： Barry A. Wechsler , Michael P. Scripsick , David S. Sumida , Thomas G. Crow
发明人： Barry A. Wechsler , Michael P. Scripsick , David S. Sumida , Thomas G. Crow
IPC分类号： H01S3/06 , C30B29/32 , C30B19/12
CPC分类号： H01S3/0602 , C30B19/12 , C30B29/32 , H01S3/0408 , H01S3/0604 , H01S3/0612 , H01S3/09408 , H01S3/094084 , H01S3/0941 , H01S3/1618 , H01S3/1675
摘要： A laser gain element including an undoped layer of a monoclinic double tungstate (MDT) crystal, and a method of forming a laser gain element are provided. The laser gain element includes a layer of doped MDT crystal adjacent to the undoped layer, the doped MDT layer including a pre-selected concentration of rare earth ions. The layer of doped MDT crystal has an absorption peak at a first wavelength and an emission peak at a second wavelength longer than the first wavelength; and the layer of doped MDT crystal has a fluorescence emission with a weighted average at a third wavelength shorter than the first wavelength. A laser resonator cavity formed with a plurality of composite gain elements as above is also provided.
摘要翻译：提供了包括单斜晶双晶钨酸盐（MDT）晶体的未掺杂层的激光增益元件以及形成激光增益元件的方法。激光增益元件包括与未掺杂层相邻的掺杂MDT晶体层，掺杂的MDT层包括预先选择的稀土离子浓度。掺杂的MDT晶体层在第一波长处具有吸收峰，并且在比第一波长长的第二波长处具有发射峰; 并且掺杂的MDT晶体层具有在比第一波长短的第三波长处的加权平均的荧光发射。还提供了如上所述形成有多个复合增益元件的激光谐振腔。

7. 发明申请

US20150075181A1 Optical Refrigerator 审中-公开
标题翻译：光学冰箱
公开(公告)号：US20150075181A1
公开(公告)日：2015-03-19
申请号：US14476351
申请日：2014-09-03
申请人： Richard Epstein , Jay Viktor Alden
发明人： Richard Epstein , Jay Viktor Alden
IPC分类号： F25B23/00
CPC分类号： F25B23/003 , H01S3/0408
摘要： An optical refrigerator comprises a laser source, a cooling crystal, a cavity for enhancing the absorption of the laser light in the cooling crystal, a thermal link which connects a cold finger to the cooling crystal and prevents the fluorescence from heating the cold finger, an absorbing chamber to remove the fluorescence and eliminate the waste heat, an a mechanical support that keeps the cooling crystal properly aligned with the laser beam and minimizes heat leakage.
摘要翻译：光学冰箱包括激光源，冷却晶体，用于增强冷却晶体中的激光吸收的空腔，将冷指连接到冷却晶体并防止荧光加热冷手指的热连接，吸收室以除去荧光并消除废热，这是机械支撑件，其保持冷却晶体与激光束正确对准并最小化热泄漏。

8. 发明授权

US06370172B1 Non-exothermic quasi-two level laser 有权
标题翻译：非放热准二级激光器
公开(公告)号：US06370172B1
公开(公告)日：2002-04-09
申请号：US09472012
申请日：1999-12-27
申请人： Steven R. Bowman
发明人： Steven R. Bowman
IPC分类号： H01S304
CPC分类号： H01S3/091 , H01S3/0408 , H01S3/16 , H01S3/1601
摘要： A method for selecting laser and pump frequencies for a quasi-two level solid state laser with a selected laser host and operating the laser with the selected laser and pump frequencies, the host having a fluorescence probablility P(&ngr;) over a frequency range from &ngr;i to &ngr;f, has the steps: (a) determining for the laser host, a power weighted average fluorescence frequency given by ⟨ v F ⟩ = 1 ( v f - v i ) ⁢ ∫ v i v f ⁢ v · P ⁡ ( v ) ⁢ ⁢ ⅆ v ; (b) selecting an output frequency &ngr;L for the quasi-two level solid state laser to satisfy the expression &ngr;L , and tuning the laser for laser emission at the &ngr;L; and (c) selecting a pump frequency &ngr;P for the quasi-two level solid state laser to satisfy the expression &ngr;L , and optically pumping the laser host with a laser pump to produce laser emission at the &ngr;L. This invention will provide athermal laser operation.
摘要翻译：一种用于选择具有所选择的激光主机的准二级固态激光器的激光和泵浦频率的方法，并且以选定的激光和泵浦频率操作激光器，该主机在频率范围内具有荧光可能性P（＆ngr）＆ngr; i to＆ngr; f，具有以下步骤：（a）确定激光主机，由（b）选择输出频率＆ngr; L为准二级给出的功率加权平均荧光频率< 固态激光器满足表达式“L <<＆ngr; F>，并调谐激光器的激光发射在” 和（c）为准二级固态激光器选择泵浦频率＆ngr; P，以满足表达式＆ngr; L <＆ngr; P <<＆ngr; F>，并用激光泵光学泵浦激光主机以产生激光发射。本发明将提供无热激光操作。

9. 发明申请

US20170201060A1 DUAL CHANNEL METHOD FOR PUMPING AND COOLING LASERS AND LASER DEVICE 有权
公开(公告)号：US20170201060A1
公开(公告)日：2017-07-13
申请号：US14149396
申请日：2014-01-07
申请人： The Board of Trustees of the University of Illinois
发明人： J. Gary Eden , John Darby Hewitt
IPC分类号： H01S3/091 , H01S3/04
CPC分类号： H01S3/094096 , H01S3/0408 , H01S3/094092 , H01S3/0941 , H01S3/095 , H01S3/2207 , H01S3/227
摘要： A laser pumping method pumps a primary amount of energy into a laser medium to populate an intermediate level near an upper laser level. A lesser amount of energy is pumped into the laser medium to populate an excited level that lies above the upper laser level and transfers atomic or molecular population to the upper laser level by a nonradiative process. A laser device includes a laser medium supporting four levels, including a lower laser level, an upper laser level, an excited level above the laser level from which population transfers to the upper laser level via nonradiative transition, and an intermediate level within a few kT of the upper laser level.

10. 发明申请

US20160141063A1 LASER COOLING VIA STIMULATED PHOTON EMISSIONS 有权
标题翻译：激光冷却通过刺激的光子发射
公开(公告)号：US20160141063A1
公开(公告)日：2016-05-19
申请号：US14546537
申请日：2014-11-18
申请人： The Boeing Company
发明人： Wade L. Klennert
IPC分类号： G21K1/00 , H05H3/00
CPC分类号： H05H3/00 , F25B23/00 , H01S3/0408 , H01S3/042 , H01S3/1618 , H01S3/17
摘要： An example laser cooling system may include a first laser to induce a transition of a plurality of electrons in a medium to an excited energy state via absorption of photons. The laser cooling system may also include a second laser to stimulate emission from the medium of emitted photons having a higher energy than an energy of the absorbed photons.
摘要翻译：示例性激光冷却系统可以包括通过吸收光子来诱导介质中的多个电子转变为激发能态的第一激光器。激光冷却系统还可以包括第二激光器，以刺激具有比所吸收的光子的能量更高的能量的发射光子的介质的发射。

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