Microcavity LED with photon recycling
    73.
    发明授权
    Microcavity LED with photon recycling 失效
    微腔LED与光子回收

    公开(公告)号:US5710441A

    公开(公告)日:1998-01-20

    申请号:US550147

    申请日:1995-10-30

    摘要: A microcavity LED with photon recycling including a substrate having at least one layer of material positioned thereon, and a first cladding layer, a second cladding layer and an active region sandwiched therebetween forming a mesa on the layer of material. The mesa has generally vertical sides and an upper surface with an electrically conductive and light reflective system positioned on the vertical sides of the mesa and partially covering the upper surface to form a first electrical contact for the LED, the electrically conductive and light reflective system defining a centrally located light emitting opening on the surface of the mesa, the mesa having a diametric dimension of the surface greater than one time larger than a diametric dimension of the opening.

    摘要翻译: 一种具有光子再循环的微腔LED,其包括具有位于其上的至少一层材料的基板,以及夹在其之间的第一包覆层,第二包层和有源区域,在该层材料上形成台面。 台面具有大致垂直的侧面和上表面,其具有定位在台面的垂直侧上的导电和光反射系统,并且部分地覆盖上表面以形成用于LED的第一电接触件,导电和光反射系统限定 在台面的表面上的位于中心的发光开口,台面具有比开口的直径尺寸大一倍的表面的直径尺寸。

    Method of making a plastic molded optoelectronic interface
    74.
    发明授权
    Method of making a plastic molded optoelectronic interface 失效
    制造塑料模制光电接口的方法

    公开(公告)号:US5545359A

    公开(公告)日:1996-08-13

    申请号:US288854

    申请日:1994-08-11

    IPC分类号: G02B6/42 G02B6/43 B29D11/00

    摘要: An article and method for making a plastic molded optoelectronic interface are provided. A leadframe having a first segment and a second segment with the first segment having a first tab and the second segment having a second tab is provided. The first and the second tabs extend away from the first segment and the second segment, respectively, and toward each other. The first segment and the second segment are positioned in a parallel configuration with the first and second tabs pointing toward each other. A first optical portion having a reflective surface with an angle is formed between the first tab of the first segment and the second tab of the second segment. A second optical portion that surrounds the first optical portion is formed.

    摘要翻译: 提供了一种用于制造塑料模制光电接口的制品和方法。 提供具有第一段和第二段的引线框架,其中第一段具有第一突出部并且第二段具有第二突出部。 第一和第二突出部分别从第一段和第二段分别延伸并朝向彼此延伸。 第一段和第二段被定位成平行配置,其中第一和第二突出部指向彼此。 具有角度的反射表面的第一光学部分形成在第一段的第一突片和第二段的第二突出部之间。 形成围绕第一光学部分的第二光学部分。

    Superluminescent edge emitting device with apparent vertical light
emission and method of making
    75.
    发明授权
    Superluminescent edge emitting device with apparent vertical light emission and method of making 失效
    具有明显垂直发光的超发光边缘发射器件及其制造方法

    公开(公告)号:US5498883A

    公开(公告)日:1996-03-12

    申请号:US317110

    申请日:1994-10-03

    摘要: A superluminescent edge emitting device is fabricated to have apparent vertical light emission. The superluminescent device is comprised of a semiconductor supporting structure having a major surface. A light emitting portion is formed above a first portion of the major surface, wherein the light emitting portion is configured in a substantially circular shape to suppress lasing and has sidewalls, and wherein light is emitted from the sidewalls of the light emitting portion. An non-emitting portion is formed above a second portion of the major surface and adjacent to the light emitting portion, wherein the non-emitting portion has sidewalls, and wherein the sidewalls of the light emitting portion and the sidewalls of the non-emitting portion are configured to direct the light emitted from the light emitting portion substantially perpendicular to the major surface.

    摘要翻译: 制造超发光边缘发射器件具有明显的垂直发光。 超发光装置由具有主表面的半导体支撑结构组成。 发光部分形成在主表面的第一部分之上,其中发光部分被构造成大致圆形以抑制激光并具有侧壁,并且其中光从发光部分的侧壁发射。 非发光部分形成在主表面的第二部分之上且与发光部分相邻,其中非发光部分具有侧壁,并且其中发光部分的侧壁和非发光部分的侧壁 被配置为引导从发光部分发射的光基本上垂直于主表面。

    Environmental sensor and method therefor
    76.
    发明授权
    Environmental sensor and method therefor 失效
    环境传感器及其方法

    公开(公告)号:US5489988A

    公开(公告)日:1996-02-06

    申请号:US368502

    申请日:1995-01-03

    摘要: A sensor (10,30,40,50,70) for detecting chemicals and changes in the surrounding environment utilizes a sol-gel sensor element (14,16,17,54,56,57) containing a chemical indicator. Grooves (12,13,24,52,53) are formed in a substrate (11,51). The grooves are filled with a sol-gel material having a chemical indicator, and the sol-gel is cured to adhere to the substrate (11,51). The grooves (12,13,24,52,53) are formed to facilitate optically coupling a fiber optic cable (46) to the sol-gel sensor element. Light is coupled from the fiber optic cable (46) to the sol-gel sensor element (14,16,17,54,56,57).

    摘要翻译: 用于检测化学物质和周围环境变化的传感器(10,30,40,50,70)利用含有化学指示剂的溶胶 - 凝胶传感器元件(14,16,17,54,56,57)。 沟槽(12,13,24,52,53)形成在衬底(11,51)中。 用具有化学指示剂的溶胶 - 凝胶材料填充凹槽,并且溶胶 - 凝胶固化以粘附到基底(11,51)上。 凹槽(12,13,24,52,53)形成为便于将光纤电缆(46)光学耦合到溶胶 - 凝胶传感器元件。 光从光纤电缆(46)耦合到溶胶 - 凝胶传感器元件(14,16,17,54,56,57)。

    Method of fabricating patterned-mirror VCSELs using selective growth
    77.
    发明授权
    Method of fabricating patterned-mirror VCSELs using selective growth 失效
    使用选择性生长制造图案镜VCSEL的方法

    公开(公告)号:US5478774A

    公开(公告)日:1995-12-26

    申请号:US261276

    申请日:1994-06-15

    摘要: A method of fabricating VCSELs including the steps of epitaxially growing a first mirror stack of a first conductivity type, an active region on the first mirror stack, and a first portion of a second mirror stack of a second conductivity type on the active region. A dielectric layer is then formed on the first portion of the second mirror stack, patterned to define an operating region and a remaining portion of the second mirror stack is epitaxially grown on the first portion to form a complete second mirror stack. Portions of the second mirror stack overlying the dielectric layer are polycrystalline in formation and substantially limit the remaining portion of the second mirror stack to the operating region. The polycrystalline layers can then be removed and electrical contacts formed.

    摘要翻译: 一种制造VCSEL的方法,包括以下步骤:在有源区上外延生长第一导电类型的第一反射镜叠层,第一反射镜叠层上的有源区和第二导电类型的第二反射镜叠层的第一部分。 然后在第二反射镜叠层的第一部分上形成电介质层,其被图案化以限定操作区域,并且在第一部分上外延生长第二反射镜叠层的剩余部分以形成完整的第二反射镜叠层。 覆盖在介电层上的第二反射镜叠层的部分在形成时是多晶的,并且基本上将第二反射镜叠层的剩余部分限制到操作区域。 然后可以去除多晶层并形成电接触。

    Vertical cavity surface emitting laser and sensor
    78.
    发明授权
    Vertical cavity surface emitting laser and sensor 失效
    垂直腔表面发射激光和传感器

    公开(公告)号:US5331658A

    公开(公告)日:1994-07-19

    申请号:US935307

    申请日:1992-08-26

    摘要: A vertical cavity surface emitting laser (VCSEL) having sensing capabilities is fabricated by forming a layer having the capability to change the threshold current of the VCSEL. This can be accomplished by forming a deformable membrane or a cantilevered beam on the VCSEL. The deformation of movement of the beam causes a change in the threshold current of the VCSEL, so that it can go from lasing to nonlasing or vice versa. In addition, a layer which changes reflectivity in the presence of a particular chemical can also be formed on the VCSEL to produce the same result.

    摘要翻译: 通过形成具有改变VCSEL的阈值电流的能力的层来制造具有感测能力的垂直腔表面发射激光器(VCSEL)。 这可以通过在VCSEL上形成可变形膜或悬臂梁来实现。 光束的运动变形引起VCSEL的阈值电流的变化,从而可以从激光发射到非激光,反之亦然。 此外,还可以在VCSEL上形成在特定化学品存在下改变反射率的层,以产生相同的结果。

    Superluminescent surface light emitting device
    79.
    发明授权
    Superluminescent surface light emitting device 失效
    超发光面发光装置

    公开(公告)号:US5324964A

    公开(公告)日:1994-06-28

    申请号:US770841

    申请日:1991-10-04

    CPC分类号: H01L33/105 H01L33/0045

    摘要: A superluminescent surface light emitting device comprising a mirror layer (19) formed on a surface of a semiconductor substrate (22). Above the mirror (19) is a light emitting region (16). A second mirror (12) is located in a plane above the light emitting region (16). The combined reflectivities of the mirrors (19,12) are selected such that light is emitted in the superluminescent operating mode in a direction perpendicular to the surface of the device. An implanted region (14) may be used to improve superluminescent operation.

    摘要翻译: 一种超发光面发光器件,包括形成在半导体衬底(22)的表面上的镜层(19)。 反射镜(19)上方是发光区域(16)。 第二反射镜(12)位于发光区域(16)上方的平面中。 选择反射镜(19,12)的组合反射率使得光在超发光操作模式中沿垂直于装置表面的方向发射。 植入区域(14)可用于改善超发光操作。

    VCSEL with separate control of current distribution and optical mode
    80.
    发明授权
    VCSEL with separate control of current distribution and optical mode 失效
    VCSEL具有电流分布和光学模式的独立控制

    公开(公告)号:US5317587A

    公开(公告)日:1994-05-31

    申请号:US925139

    申请日:1992-08-06

    摘要: A VCSEL formed on a substrate with an upper mirror stack etched to form a mesa shaped area with material positioned on the upper mirror stack including optically transparent, electrically conductive material defining an electrical contact window to control current distribution within the laser, and material positioned on the surface of the mesa shaped area with an optical thickness selected to provide a desired mirror reflectivity profile which controls the optical mode independently of the mesa edges, thereby, providing separate control of the current and the optical mode.

    摘要翻译: VCSEL形成在具有上反射镜堆叠的衬底上,其被蚀刻以形成台面形状区域,其中材料位于上反射镜堆叠上,包括光学透明的导电材料,其限定电接触窗口以控制激光器内的电流分布,以及位于 选择具有光学厚度的台面形区域的表面以提供独立于台面边缘来控制光学模式的期望的镜面反射率分布,从而提供对电流和光学模式的单独控制。