Laser drivers for closed path optical cables
    31.
    发明授权
    Laser drivers for closed path optical cables 有权
    用于闭路光缆的激光驱动器

    公开(公告)号:US08233805B2

    公开(公告)日:2012-07-31

    申请号:US12979243

    申请日:2010-12-27

    IPC分类号: H04B10/00

    摘要: Simplified laser drivers for closed path digital optical cables and digital optical cables including the simplified laser drivers. The laser driver can include less transistors than conventional laser drivers for optical communication cables. The laser can include a bias source and modulation source. The bias source can have a single constant current bias point for all laser diodes. The modulation current source can have a single temperature coefficient for all laser diodes. The laser driver can exclude, for example, any one of or combination of temperature compensation of the modulation or bias current sources, external programming of the modulation or bias current sources, power control based on output of the laser diode, and/or control based on feedback received from a monitor device or other sensor within the cables.

    摘要翻译: 用于闭路数字光缆和数字光缆的简化激光驱动器,包括简化的激光驱动器。 激光驱动器可以包括比用于光通信电缆的常规激光驱动器更少的晶体管。 激光器可以包括偏置源和调制源。 偏置源可以为所有激光二极管提供单个恒定电流偏置点。 调制电流源可以具有所有激光二极管的单一温度系数。 激光驱动器可以例如排除调制或偏置电流源的温度补偿中的任何一种或组合,调制或偏置电流源的外部编程,基于激光二极管的输出的功率控制和/或基于 在来自监视器装置或电缆内的其他传感器的反馈。

    OPTICAL TRANSCIEVER
    32.
    发明申请
    OPTICAL TRANSCIEVER 有权
    光学透镜

    公开(公告)号:US20110110669A1

    公开(公告)日:2011-05-12

    申请号:US12941942

    申请日:2010-11-08

    IPC分类号: H04B10/02 H05K3/00

    摘要: An optical transceiver for detecting an incoming light beam and for transmitting an outgoing light beam along a common optical axis is provided. Such an optical transceiver provides a compact optical transceiver that is suitable for a wide variety of applications.

    摘要翻译: 提供了一种用于检测入射光束并沿着公共光轴传输出射光束的光收发器。 这种光收发器提供了适用于各种应用的紧凑型光收发器。

    LASER DRIVERS FOR CLOSED PATH OPTICAL CABLES
    33.
    发明申请
    LASER DRIVERS FOR CLOSED PATH OPTICAL CABLES 有权
    激光驱动器关闭路径光纤

    公开(公告)号:US20110091219A1

    公开(公告)日:2011-04-21

    申请号:US12979243

    申请日:2010-12-27

    IPC分类号: H04B10/12

    摘要: Simplified laser drivers for closed path digital optical cables and digital optical cables including the simplified laser drivers. The laser driver can include less transistors than conventional laser drivers for optical communication cables. The laser can include a bias source and modulation source. The bias source can have a single constant current bias point for all laser diodes. The modulation current source can have a single temperature coefficient for all laser diodes. The laser driver can exclude, for example, any one of or combination of temperature compensation of the modulation or bias current sources, external programming of the modulation or bias current sources, power control based on output of the laser diode, and/or control based on feedback received from a monitor device or other sensor within the cables.

    摘要翻译: 用于闭路数字光缆和数字光缆的简化激光驱动器,包括简化的激光驱动器。 激光驱动器可以包括比用于光通信电缆的常规激光驱动器更少的晶体管。 激光器可以包括偏置源和调制源。 偏置源可以为所有激光二极管提供单个恒定电流偏置点。 调制电流源可以具有所有激光二极管的单一温度系数。 激光驱动器可以例如排除调制或偏置电流源的温度补偿中的任何一种或组合,调制或偏置电流源的外部编程,基于激光二极管的输出的功率控制和/或基于 在来自监视器装置或电缆内的其他传感器的反馈。

    Geometric optimizations for reducing spontaneous emissions in photodiodes
    34.
    发明授权
    Geometric optimizations for reducing spontaneous emissions in photodiodes 有权
    减少光电二极管自发辐射的几何优化

    公开(公告)号:US07746911B2

    公开(公告)日:2010-06-29

    申请号:US11027383

    申请日:2004-12-30

    IPC分类号: H01S5/00

    摘要: An optical structure that reduces the effects of spontaneous emissions from the active region of a laser. An optical structure includes optimizations to reduce the effects of spontaneous emissions. The optical structure includes a VCSEL with top and bottom DBR mirrors and an active region connected to the mirrors. The optical structure further includes a photodiode connected to the VCSEL. One or more optimizations may be included in the optical structure including optically absorbing materials, varying the geometry of the structure to change reflective angles, using optical apertures, changing the reflectivity of one or more mirrors, changing the photodiode to be more impervious to spontaneous emissions, and using ion implants to reduce photoluminescence efficiency.

    摘要翻译: 一种降低激光器有源区自发发射效应的光学结构。 光学结构包括优化以减少自发辐射的影响。 光学结构包括具有顶部和底部DBR反射镜的VCSEL和连接到反射镜的有源区域。 光学结构还包括连接到VCSEL的光电二极管。 可以在光学结构中包括一个或多个优化,包括光学吸收材料,改变结构的几何形状以改变反射角度,使用光学孔径,改变一个或多个反射镜的反射率,将光电二极管改变为对自发辐射更为不透明 ,并使用离子注入来降低光致发光效率。

    Optimizing mirror reflectivity for reducing spontaneous emissions in photodiodes
    35.
    发明授权
    Optimizing mirror reflectivity for reducing spontaneous emissions in photodiodes 有权
    优化镜面反射率,以减少光电二极管中的自发辐射

    公开(公告)号:US07366217B2

    公开(公告)日:2008-04-29

    申请号:US11027717

    申请日:2004-12-30

    IPC分类号: H01S5/00 H01S3/06

    摘要: An optical structure that reduces the effects of spontaneous emissions from the active region of a laser. An optical structure includes optimizations to reduce the effects of spontaneous emissions. The optical structure includes a VCSEL with top and bottom DBR mirrors and an active region connected to the mirrors. The optical structure further includes a photodiode connected to the VCSEL. One or more optimizations may be included in the optical structure including optically absorbing materials, varying the geometry of the structure to change reflective angles, using optical apertures, changing the reflectivity of one or more mirrors, changing the photodiode to be more impervious to spontaneous emissions, and using ion implants to reduce photoluminescence efficiency.

    摘要翻译: 一种降低激光器有源区自发发射效应的光学结构。 光学结构包括优化以减少自发辐射的影响。 光学结构包括具有顶部和底部DBR反射镜的VCSEL和连接到反射镜的有源区域。 光学结构还包括连接到VCSEL的光电二极管。 可以在光学结构中包括一个或多个优化,包括光学吸收材料,改变结构的几何形状以改变反射角度,使用光学孔径,改变一个或多个反射镜的反射率,将光电二极管改变为更多地不自发发射 ,并使用离子注入来降低光致发光效率。

    System and method for VCSEL polarization control
    36.
    发明授权
    System and method for VCSEL polarization control 失效
    VCSEL偏振控制系统和方法

    公开(公告)号:US06963598B1

    公开(公告)日:2005-11-08

    申请号:US09577034

    申请日:2000-05-23

    摘要: A system and method for VCSEL (vertical cavity surface emitting laser) polarization control is disclosed, including methods and apparatus comprising a component package (302, 304) having self-aligning features (316, 318), for indicating an alignment axis (320, 322), and an upper surface aperture (314) formed therein, a vertical cavity surface emitting laser device (308) having two emission polarizations (204) normal to one another, disposed within the component package and aligned such that each emission polarization is at about 45 degrees with respect to the alignment axis, and a linear polarization element (400, 402, 406) having a polarization direction (206), spanning the aperture and disposed such that the polarization direction is parallel to the alignment axis.

    摘要翻译: 公开了一种用于VCSEL(垂直腔表面发射激光)偏振控制的系统和方法,包括包括具有自对准特征(316,318)的部件封装(302,304)的方法和装置,用于指示对准轴线(320,3304) 322)和形成在其中的上表面孔(314),具有彼此垂直的两个发射偏振(204)的垂直腔表面发射激光器件(308),其布置在所述部件封装内并对准,使得每个发射极化处于 以及具有偏振方向(206)的线偏振元件(400,402,406),该线偏振元件跨越该孔并被设置为使得偏振方向平行于对准轴。

    High-temperature operation of vertical cavity surface emitting lasers
    38.
    发明授权
    High-temperature operation of vertical cavity surface emitting lasers 有权
    垂直腔表面发射激光器的高温运行

    公开(公告)号:US08611384B2

    公开(公告)日:2013-12-17

    申请号:US11750801

    申请日:2007-05-18

    申请人: Jimmy A. Tatum

    发明人: Jimmy A. Tatum

    IPC分类号: H01S3/00

    摘要: Embodiments of the present invention provide a system for increasing an operational life of a VCSEL. The system can include control circuitry for reducing an amount of bias current at high temperatures and increasing a power of the laser at low temperatures. This control circuitry can further include at least one of a temperature sensor, a Field Programmable Gate Array, a read only memory module, and an electrically erasable programmable read only memory module (EEPROM). In alternate embodiments, the control circuitry can further include a lookup table that sets the bias current depending on a temperature of the laser. The laser can be part of an optoelectronic transceiver module which can include, by way of example and not limitation, SFP, XFP, X2, XAUI, XENPAK, XPAK, GBIC, 8G, 16G, and other optoelectronic modules.

    摘要翻译: 本发明的实施例提供了一种用于增加VCSEL的使用寿命的系统。 该系统可以包括用于减少高温下的偏置电流量并且在低温下增加激光器的功率的控制电路。 该控制电路还可以包括温度传感器,现场可编程门阵列,只读存储器模块和电可擦除可编程只读存储器模块(EEPROM)中的至少一个。 在替代实施例中,控制电路还可以包括根据激光器的温度设置偏置电流的查找表。 激光器可以是光电收发器模块的一部分,其可以例如但不限于SFP,XFP,X2,XAUI,XENPAK,XPAK,GBIC,8G,16G等光电模块。

    Photodiode with fiber mode dispersion compensation
    39.
    发明授权
    Photodiode with fiber mode dispersion compensation 有权
    具有光纤模式色散补偿的光电二极管

    公开(公告)号:US07638351B2

    公开(公告)日:2009-12-29

    申请号:US11185038

    申请日:2005-07-20

    申请人: Jimmy A. Tatum

    发明人: Jimmy A. Tatum

    IPC分类号: H01L21/04

    摘要: A photodiode and a method of fabricating a photodiode for reducing modal dispersion and increasing travel distance. The central region of the photodiode is made less responsive to incident light than a peripheral region of the photodiode. The less responsive central region discriminates the lower order modes such that only the higher order modes are incident on the more responsive peripheral region. Because the lower order modes are subtracted, the range of propagation constants is reduced and modal dispersion is also reduced.

    摘要翻译: 光电二极管和制造光电二极管以减少模态色散和增加行进距离的方法。 光电二极管的中心区域比光电二极管的外围区域对入射光的响应较小。 较不响应的中心区域区分低阶模式,使得仅更高阶模式入射到更响应的外围区域。 因为减少了低阶模式,所以传播常数的范围被减少,并且模态色散也降低。

    Rosa alignment using DC or low frequency optical source
    40.
    发明授权
    Rosa alignment using DC or low frequency optical source 有权
    罗莎对齐使用直流或低频光源

    公开(公告)号:US07140784B2

    公开(公告)日:2006-11-28

    申请号:US11092443

    申请日:2005-03-29

    IPC分类号: G02B6/36

    CPC分类号: G02B6/4225

    摘要: Methods and apparatus for alignment of TO cans with photodiodes on fiber-optic receptacles. The methods and apparatus make use of direct connections to photodiodes or connections to Received Signal Strength Indicator (RSSI) outputs to align TO cans in fiber-optic receptacles. An optical source, such as a laser diode, can be powered by a low-frequency or DC source. This optical source can direct light into the fiber-optic receptacle. The TO can is manipulated in a barrel of the fiber-optic receptacle. The current through the photodiode or the RSSI output is monitored to determine when light directed into the photodiode is at a maximum or above a predetermined threshold. The TO can is fixed in the barrel when the light directed into the photodiode is at the maximum or predetermined threshold.

    摘要翻译: 在光纤插座上使用光电二极管对准TO罐的方法和装置。 这些方法和装置利用与光电二极管的直接连接或者连接到接收信号强度指示器(RSSI)输出,以对准光纤插座中的TO罐。 诸如激光二极管的光源可以由低频或直流电源供电。 该光源可以将光引导到光纤插座中。 TO罐可以在光纤插座的桶中进行操作。 监测通过光电二极管或RSSI输出的电流,以确定导入光电二极管的光线是否处于最大或高于预定阈值。 当导入光电二极管的光达到最大或预定阈值时,TO罐固定在镜筒中。