Vertical cavity surface emitting laser using photonic crystals
    1.
    发明授权
    Vertical cavity surface emitting laser using photonic crystals 有权
    使用光子晶体的垂直腔表面发射激光

    公开(公告)号:US06829281B2

    公开(公告)日:2004-12-07

    申请号:US10175309

    申请日:2002-06-19

    IPC分类号: H01S308

    CPC分类号: H01S5/183 H01S5/105

    摘要: A vertical cavity surface emitting laser (VCSEL) using photonic crystals. Photonic crystals are formed such that the active region of the VCSEL is bounded by the photonic crystals. The photonic crystals have a periodic cavity structure that reflects light of certain wavelengths through the active region of the VCSEL such that laser light at the wavelengths is generated. Additional photonic crystals can be formed to increase the bandwidth of the VCSEL. The photonic crystals can also be combined with distributed bragg reflector layers to form the mirrors of a VCSEL.

    摘要翻译: 使用光子晶体的垂直腔表面发射激光器(VCSEL)。 形成光子晶体,使得VCSEL的有源区域被光子晶体限制。 光子晶体具有通过VCSEL的有源区域反射某些波长的光的周期性空腔结构,使得产生波长的激光。 可以形成额外的光子晶体以增加VCSEL的带宽。 光子晶体还可以与分布式布拉格反射器层组合以形成VCSEL的反射镜。

    Single mode vertical cavity surface emitting laser using photonic crystals with a central defect
    2.
    发明授权
    Single mode vertical cavity surface emitting laser using photonic crystals with a central defect 有权
    使用具有中心缺陷的光子晶体的单模垂直腔表面发射激光器

    公开(公告)号:US07668220B2

    公开(公告)日:2010-02-23

    申请号:US12423791

    申请日:2009-04-14

    IPC分类号: H01S5/00

    摘要: Vertical cavity surface emitting lasers are disclosed, one example of which includes a substrate upon which a lower mirror layer is formed. An active region and upper mirror layer are disposed, in that order, on the lower mirror layer. In particular, the upper mirror layer includes a plurality of DBR layers formed on the active region. The upper mirror layer additionally includes a photonic crystal formed on the plurality of DBR layers and having a periodic structure that contributes to the definition of a central defect. As a consequence of this structure, the photonic crystal has a reflectivity that is wavelength dependent, and the central defect enables the VCSEL to propagate a single mode.

    摘要翻译: 公开了垂直空腔表面发射激光器,其一个示例包括其上形成有下镜面层的基板。 有源区和上镜层依次设置在下镜层上。 具体而言,上镜层包括在活性区域上形成的多个DBR层。 上镜层另外包括形成在多个DBR层上并具有有助于定义中心缺陷的周期性结构的光子晶体。 作为这种结构的结果,光子晶体具有波长依赖性的反射率,并且中心缺陷使VCSEL能够传播单个模式。

    Single mode vertical cavity surface emitting laser using photonic crystals with a central defect
    3.
    发明申请
    Single mode vertical cavity surface emitting laser using photonic crystals with a central defect 审中-公开
    使用具有中心缺陷的光子晶体的单模垂直腔表面发射激光器

    公开(公告)号:US20050008060A1

    公开(公告)日:2005-01-13

    申请号:US10913625

    申请日:2004-08-06

    摘要: Vertical cavity surface emitting lasers are disclosed, one example of which includes a substrate upon which a lower mirror layer is formed. An active region and upper mirror layer are disposed, in that order, on the lower mirror layer. In particular, the upper mirror layer includes a plurality of DBR layers formed on the active region. The upper mirror layer additionally includes a photonic crystal formed on the plurality of DBR layers and having a periodic structure that contributes to the definition of a central defect. As a consequence of this structure, the photonic crystal has a reflectivity that is wavelength dependent, and the central defect enables the VCSEL to propagate a single mode.

    摘要翻译: 公开了垂直空腔表面发射激光器,其一个示例包括其上形成有下镜面层的基板。 有源区和上镜层依次设置在下镜层上。 具体而言,上镜层包括在活性区域上形成的多个DBR层。 上镜层另外包括形成在多个DBR层上并具有有助于定义中心缺陷的周期性结构的光子晶体。 作为这种结构的结果,光子晶体具有波长依赖性的反射率,并且中心缺陷使VCSEL能够传播单个模式。

    Single mode vertical cavity surface emitting laser using photonic crystals with a central defect
    4.
    发明授权
    Single mode vertical cavity surface emitting laser using photonic crystals with a central defect 有权
    使用具有中心缺陷的光子晶体的单模垂直腔表面发射激光器

    公开(公告)号:US06810056B1

    公开(公告)日:2004-10-26

    申请号:US10256001

    申请日:2002-09-26

    IPC分类号: H01S500

    摘要: A vertical cavity surface emitting laser (VCSEL) using photonic crystals with a central defect. At least one of the mirror layers of a VCSEL includes a photonic crystal with a central defect. The central defect, which is surrounded by a periodic structure of holes or cavities, permits laser light to propagate and exit the VCSEL. Semi-insulating regions are formed in the active region such that when cavities are drilled in the photonic crystal and penetrate the active region, the cavities pass through the semi-insulating regions. This reduces the surface recombination that would otherwise occur in the active region and prevents the threshold current from increasing. The photonic crystal with a central defect has a reflectivity that is wavelength dependent. The VCSEL thus emits a single mode.

    摘要翻译: 使用具有中心缺陷的光子晶体的垂直腔表面发射激光器(VCSEL)。 VCSEL的至少一个镜层包括具有中心缺陷的光子晶体。 由孔或腔的周期性结构包围的中心缺陷允许激光传播并离开VCSEL。 在有源区域中形成半绝缘区域,使得当在光子晶体中钻孔并穿透有源区域时,腔体通过半绝缘区域。 这减少了否则将在有源区域中发生的表面复合并且防止阈值电流增加。 具有中心缺陷的光子晶体具有波长依赖性的反射率。 因此,VCSEL发出单一模式。

    Single Mode Vertical Cavity Surface Emitting Laser Using Photonic Crystals With A Central Defect
    5.
    发明申请
    Single Mode Vertical Cavity Surface Emitting Laser Using Photonic Crystals With A Central Defect 有权
    使用具有中心缺陷的光子晶体的单模垂直腔表面发射激光器

    公开(公告)号:US20090232176A1

    公开(公告)日:2009-09-17

    申请号:US12423791

    申请日:2009-04-14

    IPC分类号: H01S5/183 H01S5/187 H01S3/08

    摘要: Vertical cavity surface emitting lasers are disclosed, one example of which includes a substrate upon which a lower mirror layer is formed. An active region and upper mirror layer are disposed, in that order, on the lower mirror layer. In particular, the upper mirror layer includes a plurality of DBR layers formed on the active region. The upper mirror layer additionally includes a photonic crystal formed on the plurality of DBR layers and having a periodic structure that contributes to the definition of a central defect. As a consequence of this structure, the photonic crystal has a reflectivity that is wavelength dependent, and the central defect enables the VCSEL to propagate a single mode.

    摘要翻译: 公开了垂直空腔表面发射激光器,其一个示例包括其上形成有下镜面层的基板。 有源区和上镜层依次设置在下镜层上。 具体而言,上镜层包括在活性区域上形成的多个DBR层。 上镜层另外包括形成在多个DBR层上并具有有助于定义中心缺陷的周期性结构的光子晶体。 作为这种结构的结果,光子晶体具有波长依赖性的反射率,并且中心缺陷使VCSEL能够传播单个模式。

    High power single mode vertical cavity surface emitting laser
    6.
    发明授权
    High power single mode vertical cavity surface emitting laser 有权
    大功率单模垂直腔表面发射激光器

    公开(公告)号:US07254155B1

    公开(公告)日:2007-08-07

    申请号:US10771192

    申请日:2004-02-03

    IPC分类号: H01S3/082

    摘要: A single mode high power vertical cavity surface emitting laser (VCSEL) using photonic crystals. A photonic crystal is included in at least one mirror layer of a VCSEL. The reflectivity of the photonic crystal is dependent on the wavelength and incident angle of the photons. The photonic crystal can be formed such that the VCSEL lases at a single mode. Because a single mode is generated, the aperture of the VCSEL can be enlarged to increase the power that is generated by the VCSEL for that mode. The photonic crystal can be used with or without DBR layers. The photonic crystal, in one example, forms an external cavity.

    摘要翻译: 使用光子晶体的单模高功率垂直腔面发射激光器(VCSEL)。 光子晶体包括在VCSEL的至少一个镜层中。 光子晶体的反射率取决于光子的波长和入射角。 可以形成光子晶体,使得VCSEL以单一模式发光。 因为生成单个模式,所以可以放大VCSEL的孔径,以增加VCSEL为该模式生成的功率。 光子晶体可以使用或不使用DBR层。 在一个示例中,光子晶体形成外部空腔。

    Edge emitting lasers using photonic crystals
    7.
    发明授权
    Edge emitting lasers using photonic crystals 失效
    使用光子晶体的边缘发射激光器

    公开(公告)号:US06744804B2

    公开(公告)日:2004-06-01

    申请号:US10197997

    申请日:2002-07-18

    IPC分类号: H01S3081

    摘要: An edge emitting laser that emits a single mode using photonic mirrors. An edge emitting laser includes an active region that is formed between an n-type semiconductor material and a p-type semiconductor material. Photonic mirrors are formed in the laser to define a gain cavity and an external cavity. The gain cavity is bounded by a cleaved facet and a photonic mirror or by a pair of photonic mirrors. The external cavity is bounded by the photonic mirror of the gain cavity and either a cleaved facet or another photonic mirror. The mode emitted by the laser is determined by characteristics of the photonic mirrors, including the periodic cavity structures of the mirrors.

    摘要翻译: 使用光子镜发射单模的边缘发射激光器。 边缘发射激光器包括形成在n型半导体材料和p型半导体材料之间的有源区。 在激光器中形成光子镜以限定增益腔和外部腔。 增益腔由切割小面和光子镜或一对光子镜限定。 外腔由增益腔的光子镜和切割小面或另一个光子镜界定。 激光发射的模式由光子镜的特性决定,包括反射镜的周期性空腔结构。

    High power single mode vertical cavity surface emitting laser
    8.
    发明授权
    High power single mode vertical cavity surface emitting laser 有权
    大功率单模垂直腔表面发射激光器

    公开(公告)号:US06704343B2

    公开(公告)日:2004-03-09

    申请号:US10198229

    申请日:2002-07-18

    IPC分类号: H01S3082

    摘要: A single mode high power vertical cavity surface emitting laser (VCSEL) using photonic crystals. A photonic crystal is included in at least one mirror layer of a VCSEL. The reflectivity of the photonic crystal is dependent on the wavelength and incident angle of the photons. The photonic crystal can be formed such that the VCSEL lases at a single mode. Because a single mode is generated, the aperture of the VCSEL can be enlarged to increase the power that is generated by the VCSEL for that mode. The photonic crystal can be used with/without DBR layers. The photonic crystal, in one example, forms an external cavity.

    摘要翻译: 使用光子晶体的单模高功率垂直腔面发射激光器(VCSEL)。 光子晶体包括在VCSEL的至少一个镜层中。 光子晶体的反射率取决于光子的波长和入射角。 可以形成光子晶体,使得VCSEL以单一模式发光。 因为产生单个模式,所以可以放大VCSEL的孔径以增加由VCSEL为该模式产生的功率。 光子晶体可以使用/不使用DBR层。 在一个示例中,光子晶体形成外部空腔。

    Resistive heating element for enabling laser operation
    9.
    发明授权
    Resistive heating element for enabling laser operation 有权
    用于激光操作的电阻式加热元件

    公开(公告)号:US09172209B2

    公开(公告)日:2015-10-27

    申请号:US11670250

    申请日:2007-02-01

    摘要: Heating resistor used to control laser operation. A laser package, such as a Transmitter Optical Subassembly (TOSA) includes a substrate. A laser is disposed on the substrate. A resistive heating element is disposed on the substrate with the laser. Control circuitry is connected to the resistive heating element. The control circuitry is configured to cause current flow through the resistive heating element based on temperature conditions. Current flow through the resistive heating element causes an increase in the operating temperature of the laser. This can be used to increase the effective operating temperature range of a laser.

    摘要翻译: 加热电阻用于控制激光器的工作。 诸如发射器光学子组件(TOSA)的激光器封装包括衬底。 激光器设置在基板上。 用激光器将电阻加热元件设置在基板上。 控制电路连接到电阻加热元件。 控制电路被配置为基于温度条件使电流流过电阻加热元件。 通过电阻加热元件的电流使激光器的工作温度升高。 这可以用于增加激光器的有效工作温度范围。

    TRANSISTOR OUTLINE CAN WITH IN-LINE ELECTRICAL COUPLINGS
    10.
    发明申请
    TRANSISTOR OUTLINE CAN WITH IN-LINE ELECTRICAL COUPLINGS 有权
    晶体管外形可与内部电气耦合

    公开(公告)号:US20130279139A1

    公开(公告)日:2013-10-24

    申请号:US13452753

    申请日:2012-04-20

    IPC分类号: H05K7/02

    摘要: An example embodiment includes a TO can including a header, an RF pin opening, an internal volume, an RF pin, a submount, and a flex circuit. The header defines the RF pin opening. The internal volume is defined by a TO can housing and an interior header surface. The RF pin extends through the RF pin opening such that a first surface connection is located in the internal volume and a second surface connection is located outside of the internal volume and extends past an exterior header surface. The submount is located in the internal volume and the submount includes a submount trace. The submount trace includes a pin connection portion in-line with the RF pin and electrically coupled to the first surface connection. The flex circuit includes a flex trace further including a flex trace connection in-line with the RF pin and electrically coupled to the second surface connection.

    摘要翻译: 示例性实施例包括TO可以包括报头,RF引脚开口,内部卷,RF引脚,子基座和柔性电路。 标头定义RF引脚开口。 内部容积由TO罐壳体和内部集管表面限定。 RF引脚延伸穿过RF引脚开口,使得第一表面连接位于内部容积中,并且第二表面连接位于内部容积的外部并且延伸经过外部集管表面。 子安装板位于内部卷中,子安装板包含一个子安装架跟踪。 副安装座轨迹包括与RF引脚成直线并且电耦合到第一表面连接的引脚连接部分。 柔性电路包括柔性迹线,其还包括与RF引脚成直线并且电耦合到第二表面连接的挠曲迹线连接。