利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

28 条记录 (耗时 0.022 秒)

    Solid-state lasers employing incoherent monochromatic pump
    1.
    发明授权
    Solid-state lasers employing incoherent monochromatic pump 有权
    采用非相干单色泵的固态激光器

    公开(公告)号：US07522651B2

    公开(公告)日：2009-04-21

    申请号：US11052725

    申请日：2005-02-07

    申请人： Ningyi Luo ,  Sheng-Bai Zhu ,  Shaoping Lu ,  Feng Zhou

    发明人： Ningyi Luo ,  Sheng-Bai Zhu ,  Shaoping Lu ,  Feng Zhou

    IPC分类号： H01S3/093 ,  H01S3/091

    CPC分类号： H01S3/0933 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/042

    摘要： Solid-state laser(s) pumped by incoherent, monochromatic light from sources such as LED arrays and integrating technologies such as high power LED arrays and solid-state laser materials in conjunction with efficient and uniform absorption of pumping energies through a diffusing pump chamber. The resulting laser(s) are compact, robust, low-cost, and able to produce high power output for practical applications. It may efficiently operate over wide temperature and performance ranges, at CW or pulse modes, even with ultra short pulse width and/or extremely high repetition rates. Our inventive structure(s) is/are highly flexible and applicable to a large group of lasing media including those with very short upper state life times. Advantageously, they may be applied to a plethora of laser systems at wavelengths that have important applications and unavailable to other direct pumping technologies.

    摘要翻译： 通过来自诸如LED阵列的源的非相干单色光以及诸如大功率LED阵列和固态激光材料的集成技术泵浦的固体激光器结合通过扩散泵室的泵浦能量的有效和均匀的吸收。 所产生的激光器是紧凑的，坚固的，低成本的，并且能够为实际应用产生高功率输出。 即使在超短脉冲宽度和/或极高的重复率下，它也可以在CW或脉冲模式下在宽温度和性能范围内有效地工作。 我们的创新结构非常灵活，适用于大量的激光介质，包括具有非常短的上限寿命的激光介质。 有利的是，它们可以应用于具有重要应用的波长的多个激光系统，并且对于其它直接泵浦技术不可用。

    Injection seeding employing continuous wavelength sweeping for master-slave resonance
    3.
    发明申请
    Injection seeding employing continuous wavelength sweeping for master-slave resonance 有权

    公开(公告)号：US20060215714A1

    公开(公告)日：2006-09-28

    申请号：US11170911

    申请日：2005-06-29

    申请人： Ningyi Luo ,  Sheng-Bai Zhu ,  Minzheng Wo ,  Shaoping Lu

    发明人： Ningyi Luo ,  Sheng-Bai Zhu ,  Minzheng Wo ,  Shaoping Lu

    IPC分类号： H01S3/10 ,  H01S3/13

    CPC分类号： H01S3/10092 ,  H01S3/094 ,  H01S3/094076 ,  H01S3/13 ,  H01S3/1625 ,  H01S3/1636 ,  H01S5/0427 ,  H01S5/0622 ,  H01S2301/02

    摘要： A method for effective injection seeding is based on continuous wavelength sweeping for matching the injected seeds with one or more longitudinal mode(s) of the slave oscillator in every pump pulse. This is achieved through rapidly varying laser drive current resulted from RF modulation. Depending on the modulation parameters, the seed may be operated at quasi-CW or pulsed mode, with a narrow or broad bandwidth, for injection seeding of single longitudinal mode or multimode. The wavelength and bandwidth of the laser output can be tuned according to the needs. From pulse to pulse, the master-slave resonance may occur at different wavelengths upon cavity length fluctuations. Cavity length control via complicated feedback devices and phase locking schemes are consequently not required. The present invention also encompasses an injection seeded solid-state laser constructed in accordance with the inventive method and a novel application of RF modulated laser diode to spectral purification and producing high power Gaussian beam with narrow pulse width in a stable, reliable, and cost-effective manner.

    Injection seeding employing continuous wavelength sweeping for master-slave resonance
    5.
    发明授权
    Injection seeding employing continuous wavelength sweeping for master-slave resonance 有权
    采用连续波长扫描进行主 - 从共振的注射接种

    公开(公告)号：US07542489B2

    公开(公告)日：2009-06-02

    申请号：US11170911

    申请日：2005-06-29

    申请人： Ningyi Luo ,  Sheng-Bai Zhu ,  Minzheng Wo ,  Shaoping Lu

    发明人： Ningyi Luo ,  Sheng-Bai Zhu ,  Minzheng Wo ,  Shaoping Lu

    IPC分类号： H01S3/098

    CPC分类号： H01S3/10092 ,  H01S3/094 ,  H01S3/094076 ,  H01S3/13 ,  H01S3/1625 ,  H01S3/1636 ,  H01S5/0427 ,  H01S5/0622 ,  H01S2301/02

    摘要： A method for effective injection seeding is based on continuous wavelength sweeping for matching the injected seeds with one or more longitudinal mode(s) of the slave oscillator in every pump pulse. This is achieved through rapidly varying laser drive current resulted from RF modulation. Depending on the modulation parameters, the seed may be operated at quasi-CW or pulsed mode, with a narrow or broad bandwidth, for injection seeding of single longitudinal mode or multimode. The wavelength and bandwidth of the laser output can be tuned according to the needs. From pulse to pulse, the master-slave resonance may occur at different wavelengths upon cavity length fluctuations. Cavity length control via complicated feedback devices and phase locking schemes are consequently not required. The present invention also encompasses an injection seeded solid-state laser constructed in accordance with the inventive method and a novel application of RF modulated laser diode to spectral purification and producing high power Gaussian beam with narrow pulse width in a stable, reliable, and cost-effective manner.

    摘要翻译： 一种有效注射接种的方法是基于连续波长扫描，用于在每个泵浦脉冲中使注入的种子与从属振荡器的一个或多个纵向模式相匹配。 这是通过RF调制产生的快速变化的激光驱动电流实现的。 根据调制参数，种子可以准CW或脉冲模式，具有窄或宽带宽，用于单纵向模式或多模式的注射播种。 可以根据需要调整激光输出的波长和带宽。 从脉冲到脉冲，主 - 从谐振可能发生在不同波长的腔长度波动。 因此，不需要通过复杂的反馈装置和相位锁定方案的腔长度控制。 本发明还包括根据本发明方法构建的注射接种固态激光器和RF调制激光二极管的新颖应用，用于频谱净化并以稳定，可靠和成本低廉的方式产生具有窄脉冲宽度的高功率高斯光束， 有效的方式。

    High-power red, orange, green, blue (ROGB) fiber lasers and applications thereof
    6.
    发明授权
    High-power red, orange, green, blue (ROGB) fiber lasers and applications thereof 失效
    大功率红，橙，绿，蓝（ROGB）光纤激光器及其应用

    公开(公告)号：US07280567B2

    公开(公告)日：2007-10-09

    申请号：US11077291

    申请日：2005-03-10

    申请人： Ningyi Luo ,  Feng Zhou ,  Sheng-Bai Zhu ,  Yuxing Zhao

    发明人： Ningyi Luo ,  Feng Zhou ,  Sheng-Bai Zhu ,  Yuxing Zhao

    IPC分类号： H01S3/30

    CPC分类号： H01S3/06708 ,  H01S3/06741 ,  H01S3/094092 ,  H01S3/1613 ,  H01S3/1618 ,  H01S3/173

    摘要： An all-fiber device platform for producing high-power ROGB or RGB laser output comprises an optical fiber including multiple waveguide gain regions embedded within a common inner cladding and within an outer cladding, an optical cavity defined by dielectric reflectors and/or FBG mirrors, and a pump source for exciting one or more active ionic species by one or multiple pump wavelengths from one or both ends of the optical fiber through upconversion process. An apparatus for producing sequential or simultaneous multiple wavelength laser operation provides for applications of color projection displays and biomedical or other instrumentation.

    摘要翻译： 用于生产高功率ROGB或RGB激光输出的全光纤设备平台包括一个光纤，其包括嵌入公共内包层内并在外包层内的多个波导增益区域，由电介质反射器和/或FBG反射镜限定的光学腔， 以及用于通过上转换过程从一个或两个端部通过一个或多个泵浦波长激发一个或多个活性离子物质的泵浦源。 用于生产顺序或同时多波长激光操作的设备提供彩色投影显示器和生物医学或其他仪器的应用。

    High-power red, orange, green, blue (ROGB) fiber lasers and applications thereof
    7.
    发明申请
    High-power red, orange, green, blue (ROGB) fiber lasers and applications thereof 失效
    大功率红，橙，绿，蓝（ROGB）光纤激光器及其应用

    公开(公告)号：US20050201427A1

    公开(公告)日：2005-09-15

    申请号：US11077291

    申请日：2005-03-10

    申请人： Ningyi Luo ,  Feng Zhou ,  Sheng-Bai Zhu ,  Yuxing Zhao

    发明人： Ningyi Luo ,  Feng Zhou ,  Sheng-Bai Zhu ,  Yuxing Zhao

    IPC分类号： H01S3/067 ,  H01S3/094 ,  H01S3/16 ,  H01S3/17 ,  H01S3/30

    CPC分类号： H01S3/06708 ,  H01S3/06741 ,  H01S3/094092 ,  H01S3/1613 ,  H01S3/1618 ,  H01S3/173

    摘要： An all-fiber device platform for producing high-power ROGB or RGB laser output comprises an optical fiber including multiple waveguide gain regions embedded within a common inner cladding and within an outer cladding, an optical cavity defined by dielectric reflectors and/or FBG mirrors, and a pump source for exciting one or more active ionic species by one or multiple pump wavelengths from one or both ends of the optical fiber through upconversion process. An apparatus for producing sequential or simultaneous multiple wavelength laser operation provides for applications of color projection displays and biomedical or other instrumentation.

    摘要翻译： 用于生产高功率ROGB或RGB激光输出的全光纤设备平台包括一个光纤，其包括嵌入公共内包层内并在外包层内的多个波导增益区域，由电介质反射器和/或FBG反射镜限定的光学腔， 以及用于通过上转换过程从一个或两个端部通过一个或多个泵浦波长激发一个或多个活性离子物质的泵浦源。 用于生产顺序或同时多波长激光操作的设备提供彩色投影显示器和生物医学或其他仪器的应用。

    Solid-state lasers employing incoherent monochromatic pump
    8.
    发明申请
    Solid-state lasers employing incoherent monochromatic pump 有权
    采用非相干单色泵的固态激光器

    公开(公告)号：US20050201442A1

    公开(公告)日：2005-09-15

    申请号：US11052725

    申请日：2005-02-07

    申请人： Ningyi Luo ,  Sheng-Hai Zhu ,  Shaoping Lu ,  Feng Zhou

    发明人： Ningyi Luo ,  Sheng-Hai Zhu ,  Shaoping Lu ,  Feng Zhou

    IPC分类号： H01S3/04 ,  H01S3/042 ,  H01S3/0933 ,  H01S3/16

    CPC分类号： H01S3/0933 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/042

    摘要： Solid-state laser(s) pumped by incoherent, monochromatic light from sources such as LED arrays and integrating technologies such as high power LED arrays and solid-state laser materials in conjunction with efficient and uniform absorption of pumping energies through a diffusing pump chamber. The resulting laser(s) are compact, robust, low-cost, and able to produce high power output for practical applications. It may efficiently operate over wide temperature and performance ranges, at CW or pulse modes, even with ultra short pulse width and/or extremely high repetition rates. Our inventive structure(s) is/are highly flexible and applicable to a large group of lasing media including those with very short upper state life times. Advantageously, they may be applied to a plethora of laser systems at wavelengths that have important applications and unavailable to other direct pumping technologies.

    摘要翻译： 通过来自诸如LED阵列的源的非相干单色光以及诸如大功率LED阵列和固态激光材料的集成技术泵浦的固体激光器结合通过扩散泵室的泵浦能量的有效和均匀的吸收。 所产生的激光器是紧凑的，坚固的，低成本的，并且能够为实际应用产生高功率输出。 即使在超短脉冲宽度和/或极高的重复率下，它也可以在CW或脉冲模式下在宽温度和性能范围内高效运行。 我们的创新结构非常灵活，适用于大量的激光介质，包括具有非常短的上限寿命的激光介质。 有利的是，它们可以应用于具有重要应用的波长的多个激光系统，并且对于其它直接泵浦技术不可用。

    Wavelength and intensity stabilized laser diode and application of same to pumping solid-state lasers
    9.
    发明授权
    Wavelength and intensity stabilized laser diode and application of same to pumping solid-state lasers 失效
    波长和强度稳定的激光二极管及其应用于泵浦固态激光器

    公开(公告)号：US07606273B2

    公开(公告)日：2009-10-20

    申请号：US11872642

    申请日：2007-10-15

    申请人： Sheng-Bai Zhu ,  Ningyi Luo ,  Jing Yu

    发明人： Sheng-Bai Zhu ,  Ningyi Luo ,  Jing Yu

    IPC分类号： H01S3/30 ,  H01S3/04 ,  H01S3/00

    CPC分类号： H01S3/1312 ,  H01S3/067 ,  H01S3/0941 ,  H01S3/1305 ,  H01S5/0652

    摘要： An efficient and low-noise solid-state laser is optically pumped by one or more laser diode(s) driven by RF modulated current. The solid-state laser operation is stabilized by the pump source stable in both spectrum and intensity, in conjunction with automatic power control wherein the feedback loop accurately reflects the true drift in the output power. Moreover, the pump efficiency is optimized and the optical noise is minimized by adjusting the diode operation temperature such that the pump wavelength coincides with the absorption peak of the gain medium. By internally or externally modulating the amplitude of the drive current, the pump diode(s) operate in pulsed mode with controllable shape, width, repetition rate, and pulse-to-pulse intervals, which enables essentially constant optical energy produced from each pulse of the solid-state laser in high repetition rates with variable pulse-to-pulse intervals.

    摘要翻译： 由RF调制电流驱动的一个或多个激光二极管光泵浦有效和低噪声的固态激光器。 固态激光器的操作通过泵浦源稳定在光谱和强度两个方面，结合自动功率控制，其中反馈回路准确反映输出功率的真实漂移。 此外，通过调节二极管工作温度使得泵浦波长与增益介质的吸收峰值一致，从而优化泵效率并使光学噪声最小化。 通过内部或外部调制驱动电流的幅度，泵浦二极管以脉冲模式运行，具有可控的形状，宽度，重复率和脉冲间隔，这使得基本上恒定的光能从每个脉冲 具有可变脉冲间隔的高重复率的固态激光器。

    Low-noise monolithic microchip lasers capable of producing wavelengths ranging from IR to UV based on efficient and cost-effective frequency conversion
    10.
    发明授权
    Low-noise monolithic microchip lasers capable of producing wavelengths ranging from IR to UV based on efficient and cost-effective frequency conversion 失效
    低噪声单片微芯片激光器，能够基于高效和经济高效的频率转换产生从红外到紫外线的波长

    公开(公告)号：US07535938B2

    公开(公告)日：2009-05-19

    申请号：US11464424

    申请日：2006-08-14

    申请人： Ningyi Luo ,  Sheng-Bai Zhu

    发明人： Ningyi Luo ,  Sheng-Bai Zhu

    IPC分类号： H01S3/10

    CPC分类号： H01S3/09415 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/07 ,  H01S3/08054 ,  H01S3/08086 ,  H01S3/0815 ,  H01S3/082 ,  H01S3/09408 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/115 ,  H01S3/1611 ,  H01S3/1673

    摘要： A method for producing low-noise laser output at wavelengths ranging from IR through visible to UV in various operation modes from a monolithic microchip laser comprises schemes of (1) generating one or two fundamental beam(s) from light source(s) selected upon the desired wavelength(s), polarization(s), and other features related to the desired laser output; (2) intracavity beam combination/separation due to the walk-off effect in one or more birefringent crystal(s) transparent to the propagating lights and highly anisotropic; (3) wavelength conversion in one or more nonlinear optical crystal(s); (4) compact and efficient pump source(s); and (5) minimization of intracavity loss/noise. One resonator cavity supports only one fundamental beam, which eliminates the green problem. The gain media can be selected from an extensive group of materials including isotropic and naturally birefringent crystals, with polarization dependent or independent laser emissions. Laser devices constructed in accordance with the inventive method are demonstrated with various configurations.

    摘要翻译： 一种从单片微芯片激光器以各种操作模式从IR到可见光到UV的波长的低噪声激光输出的方法包括以下方案：（1）从根据光源选择的光源产生一个或两个基本光束， 期望的波长，极化以及与期望的激光输出有关的其它特征; （2）由于在对传播光透明的一个或多个双折射晶体中的离散效应而具有高度各向异性的腔内光束组合/分离; （3）一个或多个非线性光学晶体中的波长转换; （4）紧凑高效的泵浦源; 和（5）最小化腔内损失/噪音。 一个谐振腔仅支持一个基波束，消除了绿色问题。 增益介质可以从广泛的材料组中选择，包括各向同性和天然双折射晶体，具有偏振相关或独立的激光发射。 根据本发明方法构造的激光装置用各种配置进行演示。