InGaN diode-laser pumped II-VI semiconductor lasers
    21.
    发明授权
    InGaN diode-laser pumped II-VI semiconductor lasers 有权
    InGaN二极管激光泵浦II-VI半导体激光器

    公开(公告)号:US07136408B2

    公开(公告)日:2006-11-14

    申请号:US10866907

    申请日:2004-06-14

    IPC分类号: H01S3/091

    摘要: A semiconductor laser includes a multilayer semiconductor laser heterostructure including at least one active layer of a II-VI semiconductor material and is optically pumped by one or more indium gallium nitride (InGaN) diode-lasers. Group II elements in the II-VI semiconductor material are zinc, cadmium, magnesium, beryllium, strontium, and barium. Group VI elements in the II-VI semiconductor material are Sulfur, Selenium, and Tellurium. In one example of the laser an edge emitting heterostructure includes two active layers of zinc cadmium selenide, two waveguide layers of zinc magnesium sulfoselenide, and two cladding layers, also of zinc magnesium sulfoselenide. Proportions of elements in the cladding layer material and the waveguide layer material are selected such that the waveguide layer material has a higher bandgap than the material of the waveguide layers. In another example, a two dimensional array of InGaN diode-lasers is arranged to optically pump a one dimensional array of II-VI edge-emitting heterostructure lasers.

    摘要翻译: 半导体激光器包括包含至少一个II-VI半导体材料的有源层的多层半导体激光异质结构,并被一个或多个铟镓氮(InGaN)二极管激光器光泵浦。 II-VI族半导体材料中的II族元素是锌,镉,镁,铍,锶和钡。 II-VI族半导体材料中的VI族元素是硫,硒和碲。 在激光器的一个实例中,边缘发射异质结构包括两个硒化锌镉活性层,两个磺酸锌镁纳米波导层和两个包层,也是锌硫酸镁镁。 选择包层材料和波导层材料中的元素的比例使得波导层材料具有比波导层的材料更高的带隙。 在另一个示例中,布置InGaN二极管激光器的二维阵列以光学泵浦II-VI边缘发射异质结构激光器的一维阵列。

    Group-delay-dispersive multilayer-mirror structures and method for designing same
    22.
    发明授权
    Group-delay-dispersive multilayer-mirror structures and method for designing same 有权
    群延迟分散多层镜结构及其设计方法

    公开(公告)号:US06222673B1

    公开(公告)日:2001-04-24

    申请号:US09135972

    申请日:1998-08-18

    IPC分类号: G02B110

    CPC分类号: G02B5/0883 G02B5/0858

    摘要: Negative Group-delay-dispersion mirror (NGDD-mirror) multilayer structures include a generally-orderly arrangement of layers or groups of layers in which the function of certain individual layers or groups of layers can be recognized and defined. The structures are broadly definable as a rear group of layers which are primarily responsible for providing a desired reflection level and reflection bandwidth together with a low and smoothly varying reflection phase-dispersion, and a front group of layers which are primarily responsible for producing high reflection phase-dispersion necessary for providing a desired NGDD level and bandwidth. The front group of layers relies on multiple resonant trapping mechanisms such as two or more effective resonant-cavities, employing one or more sub-quarter-wave layers to shape the phase-dispersion for providing a substantially-constant NGDD. In certain embodiments of the structures, a base layer or substrate of a highly-reflective metal can be used to reduce the number of dielectric layers needed to provide high reflectivity.

    摘要翻译: 负组延迟分散反射镜(NGDD-mirror)多层结构包括层或层组的一般有序布置,其中可以识别和限定某些单个层或多组层的功能。 这些结构可以广泛地定义为后面的层组,其主要负责提供期望的反射水平和反射带宽以及低和平滑变化的反射相位分散以及主要负责产生高反射的前面的层组 提供所需的NGDD级别和带宽所需的相位色散。 前组的层依赖于多个谐振捕获机构,例如两个或更多个有效的谐振腔,采用一个或多个亚四分之一波长的层来形成相位分散以提供基本上恒定的NGDD。 在结构的某些实施例中,可以使用高反射金属的基底层或衬底来减少提供高反射率所需的电介质层的数量。

    Visible-spectrum anti-reflection coating including
electrically-conductive metal oxide layers
    24.
    发明授权
    Visible-spectrum anti-reflection coating including electrically-conductive metal oxide layers 失效
    可见光抗反射涂层,包括导电金属氧化物层

    公开(公告)号:US5362552A

    公开(公告)日:1994-11-08

    申请号:US126128

    申请日:1993-09-23

    申请人: R. Russel Austin

    发明人: R. Russel Austin

    IPC分类号: B32B17/06 C03C17/34 G02B1/11

    摘要: A six-layer anti-reflection coating (20 and 20A) includes three layers (24, 28, and 34) which may be formed from an electrically-conductive metal oxide having a refractive index between about 1.9 and 2.1 at a wavelength of 520 nanometers. Up to a total optical thickness of about one-wavelength of visible light of the electrically-conductive metal oxide may be included in the coating, while still providing less than 0.25 percent photopic reflection.

    摘要翻译: 六层抗反射涂层(20和20A)包括三层(24,28和34),其可以由波长520纳米的折射率介于约1.9和2.1之间的导电金属氧化物形成 。 直到导电金属氧化物的可见光的约一波长的总光学厚度可以包括在涂层中,同时仍然提供小于0.25%的明视反射。

    Broad band pass filter including metal layers and dielectric layers of
alternating refractive index
    25.
    发明授权
    Broad band pass filter including metal layers and dielectric layers of alternating refractive index 失效
    宽带通滤波器,包括金属层和交替折射率的电介质层

    公开(公告)号:US5337191A

    公开(公告)日:1994-08-09

    申请号:US46232

    申请日:1993-04-13

    申请人: R. Russel Austin

    发明人: R. Russel Austin

    IPC分类号: C03C17/36 G02B5/28 G02B7/18

    摘要: A visible light transmitting, near-infrared reflecting filter for a substrate, comprises a central group of layers (26) including two metal layers (32 and 36) separated by a spacer-layer (34) and bounded by admittance-matching layers (32 and 38). The spacer-layer has an optical thickness of less than one-half wavelength of visible light and the admittance-matching layers have an optical thickness of less than one-quarter wavelength of visible light. On each side of the central group is a group of layers (24 and 28) for boosting near infrared reflectivity of the filter, and for providing low reflection and high transmission for visible light. Each of these near-infrared-reflection-boosting groups including a high refractive index layer (40 and 42) and at least one low refractive index layer (46 and 48). The high index layer has an optical thickness of about one-quarter wavelength at a near-infrared wavelength, and the low refractive index layer has a refractive index of less than one-quarter wavelength at the near-infrared wavelength.

    摘要翻译: 一种用于衬底的可见光透射的近红外反射滤光器,包括一组中心层(26),包括由间隔层(34)分隔并由导纳匹配层(32)限定的两个金属层(32和36) 和38)。 间隔层的光学厚度小于可见光的一半波长,并且导纳匹配层的光学厚度小于四分之一波长的可见光。 在中央组的每一侧是一组用于增强滤光器的近红外反射率的层(24和28),并且用于为可见光提供低反射和高透射率。 这些近红外反射增强组中的每一个包括高折射率层(40和42)和至少一个低折射率层(46和48)。 高折射率层在近红外波长处具有大约四分之一波长的光学厚度,并且低折射率层在近红外波长处具有小于四分之一波长的折射率。

    Waveguide CO2 laser with mutiply folded resonator
    26.
    发明授权
    Waveguide CO2 laser with mutiply folded resonator 有权
    波导二氧化碳激光器具有折叠谐振器

    公开(公告)号:US08611391B2

    公开(公告)日:2013-12-17

    申请号:US13100198

    申请日:2011-05-03

    IPC分类号: H01S3/03

    摘要: A gas-discharge waveguide CO2 laser has a Z-shaped folded waveguide formed by three ceramic tubes. Ends of the adjacent tubes are shaped and fitted together to form a common aperture. The tubes are held fitted together by spaced-apart parallel discharge electrodes. Four mirrors are arranged to form a laser-resonator having a longitudinal axis extending through the tubes.

    摘要翻译: 气体放电波导CO2激光器具有由三个陶瓷管形成的Z形折叠波导。 相邻管的端部成形并装配在一起以形成公共孔。 管通过间隔开的平行放电电极固定在一起。 布置四个反射镜以形成具有延伸穿过管的纵轴的激光谐振器。

    Multicolor diode-laser module
    28.
    发明授权
    Multicolor diode-laser module 有权
    多色二极管激光模块

    公开(公告)号:US07952806B2

    公开(公告)日:2011-05-31

    申请号:US12131349

    申请日:2008-06-02

    IPC分类号: G02B27/10

    摘要: A multi-laser module includes two compartments arranged one above the other. The lower compartment includes four lasers and four corresponding beam-steering mirrors arranged to direct corresponding laser beams into the upper compartment. The upper compartment includes a regular pentagonal prism and four other beam-steering mirrors each arranged to receive one of the laser beams and direct that beam to the prism. The beam prism has three dichroic-coated surfaces and two antireflection-coated surfaces. Each of three of the beams enter the prism via a corresponding one of the dichroic-coated surfaces. The fourth beam enters the prism via one of the antireflection coated surfaces, and all of the beams exit the prism via the other antireflection coated surface along a common path.

    摘要翻译: 多激光模块包括一个彼此上下布置的两个隔间。 下隔室包括四个激光器和四个相应的光束 - 转向镜,其布置成将相应的激光束引导到上部隔室中。 上隔室包括正五棱镜和四个其它光束转向镜,每个光束转向镜设置成接收一个激光束并将该光束引导到棱镜。 光束棱镜具有三个二向色涂层表面和两个防反射涂层表面。 三个光束中的每一个通过相应的二向色涂覆表面之一进入棱镜。 第四光束通过防反射涂层表面中的一个进入棱镜,并且所有光束沿着公共路径经由另一个抗反射涂覆表面离开棱镜。

    Adjustable pulse-shaper
    30.
    发明授权
    Adjustable pulse-shaper 有权
    可调式脉冲整形机

    公开(公告)号:US07542192B2

    公开(公告)日:2009-06-02

    申请号:US12228463

    申请日:2008-08-13

    IPC分类号: G02B26/00

    摘要: An optical pulse-shaper includes a prism, a delay line having positive optical power and a reflective spatial light modulator. In one arrangement the delay line has a selectively variable optical path length for accommodating pulses of different spectral bandwidth and positive optical power is provided by a concave mirror. In another arrangement, the delay line includes a zoom-mirror arranged to provide selectively variable optical power for accommodating pulses of different spectral bandwidth.

    摘要翻译: 光脉冲整形器包括棱镜,具有正光焦度的延迟线和反射空间光调制器。 在一种布置中,延迟线具有用于容纳不同光谱带宽的脉冲的选择性可变光路长度,并且正光焦度由凹面镜提供。 在另一种布置中,延迟线包括被配置为提供用于适应不同光谱带宽的脉冲的选择性可变光功率的变焦镜。