Circuit and method for limiting current to prevent roll-over in laser diodes
    1.
    发明授权
    Circuit and method for limiting current to prevent roll-over in laser diodes 有权
    用于限制电流以防止激光二极管翻转的电路和方法

    公开(公告)号:US08670473B2

    公开(公告)日:2014-03-11

    申请号:US13341675

    申请日:2011-12-30

    IPC分类号: H01S5/042 H01S5/068

    摘要: The present disclosure relates to an optical power monitoring circuit including an automatic power control (APC) loop and a microcontroller unit (MCU), and a method for monitoring the same. The APC loop comprises a laser diode (LD) and a feedback loop to maintain a laser optical power. The MCU is configured to (i) monitor a bias current using a current sense circuit, (ii) monitor a rate of change of the bias current with time, and (iii) adjust a target power of the APC loop. By monitoring the bias current and the rate of change, and comparing them against thresholds, the target power can be adjusted by the MCU, to prevent roll-over in the laser diode, damage to the laser, and/or a hard failure in the data links that use the laser.

    摘要翻译: 本发明涉及一种包括自动功率控制(APC)回路和微控制器单元(MCU)的光功率监控电路及其监视方法。 APC环路包括激光二极管(LD)和反馈回路以保持激光光功率。 MCU被配置为(i)使用电流检测电路监视偏置电流,(ii)监视偏置电流随时间的变化率,以及(iii)调整APC回路的目标功率。 通过监测偏置电流和变化率,并将其与阈值进行比较,可以通过MCU调整目标功率,以防止激光二极管中的翻转,激光损坏和/或激光器中的硬故障 使用激光的数据链接。

    Circuits and methods for monitoring power parameters in an optical transceiver
    2.
    发明授权
    Circuits and methods for monitoring power parameters in an optical transceiver 有权
    用于监控光收发器功率参数的电路和方法

    公开(公告)号:US08879909B2

    公开(公告)日:2014-11-04

    申请号:US13455937

    申请日:2012-04-25

    IPC分类号: H04B10/08

    CPC分类号: H04B10/40 H04B10/0799

    摘要: A circuit, optical transceiver and/or methods for using the same may be useful for determining average power, extinction ratio, and/or modulation amplitude when monitoring an optical transceiver and/or optical network. The circuit generally comprises a photodiode configured to generate a first current responsive to an optical signal, a current mirror coupled to a first terminal of the photodiode, and a detector coupled to a second terminal of the photodiode. The current mirror is configured to produce a second current equal to or proportional to the first current, and the detector is configured to determine a power or amplitude of the optical signal. Further, the present scheme may communicate information using a low speed signal superimposed on or combined with the relatively high speed optical signal.

    摘要翻译: 用于在监视光收发器和/或光网络时确定平均功率,消光比和/或调制幅度的电路,光收发器和/或其使用方法可能是有用的。 电路通常包括被配置为产生响应于光信号的第一电流的光电二极管,耦合到光电二极管的第一端的电流镜,以及耦合到光电二极管的第二端的检测器。 电流镜被配置为产生等于或与第一电流成比例的第二电流,并且检测器被配置为确定光信号的功率或幅度。 此外,本方案可以使用叠加在相对高速光信号上或与其组合的低速信号来传送信息。

    Operational status indicators in an optical transceiver using dynamic thresholds
    3.
    发明授权
    Operational status indicators in an optical transceiver using dynamic thresholds 有权
    使用动态阈值的光收发器中的操作状态指示灯

    公开(公告)号:US08934779B2

    公开(公告)日:2015-01-13

    申请号:US13371313

    申请日:2012-02-10

    IPC分类号: H04B10/00 H04B10/08 H04B10/04

    摘要: Methods, architectures, circuits, and/or systems for monitoring operating parameters and/or generating status indications associated with electronic device operation are disclosed. The method can include (i) monitoring a first operating parameter related to operation of the electronic device to determine a first parameter value, (ii) calculating a difference between the first parameter value and a predetermined value for the first operating parameter, (iii) monitoring a second operating parameter on which thresholds for operational warnings and/or alarms are based to determine a second parameter value, (iv) updating or changing the thresholds based on a predetermined change or event in the second parameter value, (v) comparing the difference to the updated or changed thresholds, and (vi) generating a corresponding one of the operational warnings and/or alarms when the difference crosses at least one of the thresholds in a predetermined direction.

    摘要翻译: 公开了用于监视与电子设备操作有关的操作参数和/或生成状态指示的方法,结构,电路和/或系统。 该方法可以包括(i)监测与电子设备的操作相关的第一操作参数以确定第一参数值,(ii)计算第一参数值和第一操作参数的预定值之间的差值,(iii) 监测基于操作警告和/或警报的阈值的第二操作参数以确定第二参数值;(iv)基于第二参数值中的预定改变或事件来更新或改变阈值;(v) 与更新或改变的阈值的差异,以及(vi)当差异在预定方向上跨越至少一个阈值时,产生操作警告和/或警报中的对应的一个。

    Operational status indicators in an optical transceiver using dynamic thresholds

    公开(公告)号:US09391718B2

    公开(公告)日:2016-07-12

    申请号:US13684047

    申请日:2012-11-21

    摘要: Methods, architectures, circuits, and/or systems for monitoring operating parameters and/or generating status indications associated with electronic device operation are disclosed. The method can include (i) monitoring a first operating parameter related to operation of the electronic device to determine a first parameter value, (ii) calculating a difference between the first parameter value and a predetermined value for the first operating parameter, (iii) monitoring a second operating parameter on which thresholds for operational warnings and/or alarms are based to determine a second parameter value, (iv) updating or changing the thresholds based on a predetermined change or event in the second parameter value, (v) comparing the difference to the updated or changed thresholds, and (vi) generating a corresponding one of the operational warnings and/or alarms when the difference crosses at least one of the thresholds in a predetermined direction.

    Operational state information generation in an optical transceiver
    5.
    发明授权
    Operational state information generation in an optical transceiver 有权
    光收发器中的操作状态信息生成

    公开(公告)号:US08989587B2

    公开(公告)日:2015-03-24

    申请号:US13348599

    申请日:2012-01-11

    CPC分类号: H04B10/40 H04B10/0799

    摘要: Methods, algorithms, architectures, circuits, and/or systems for determining the status of parameters associated with optical transceiver operation are disclosed. The method can include (a) accessing and/or monitoring parametric data for each of a plurality of parameters that are related to operation of the optical transceiver; (b) storing the parametric data in one or more memories; (c) comparing the parametric data for each of the plurality of parameters against at least one of a corresponding plurality of predetermined thresholds; and (d) generating one or more states indicating whether the parametric data for a unique one of the parameters has crossed one or more of the corresponding plurality of predetermined thresholds. The invention also relates to an optical triplexer, comprising the described optical transceiver.

    摘要翻译: 公开了用于确定与光收发器操作相关联的参数的状态的方法,算法,架构,电路和/或系统。 该方法可以包括(a)访问和/或监视与光收发器的操作相关的多个参数中的每个参数的参数数据; (b)将参数数据存储在一个或多个存储器中; (c)将所述多个参数中的每一个的参数数据与相应的多个预定阈值中的至少一个进行比较; 以及(d)产生指示所述参数中唯一参数的参数数据是否已经越过相应的多个预定阈值中的一个或多个的一个或多个状态。 本发明还涉及一种包括所述光收发器的光学三工器。

    Operational State Information Generation in an Optical Transceiver
    6.
    发明申请
    Operational State Information Generation in an Optical Transceiver 有权
    光收发器中的操作状态信息生成

    公开(公告)号:US20130177308A1

    公开(公告)日:2013-07-11

    申请号:US13348599

    申请日:2012-01-11

    IPC分类号: H04B10/00 H04B10/08

    CPC分类号: H04B10/40 H04B10/0799

    摘要: Methods, algorithms, architectures, circuits, and/or systems for determining the status of parameters associated with optical transceiver operation are disclosed. The method can include (a) accessing and/or monitoring parametric data for each of a plurality of parameters that are related to operation of the optical transceiver; (b) storing the parametric data in one or more memories; (c) comparing the parametric data for each of the plurality of parameters against at least one of a corresponding plurality of predetermined thresholds; and (d) generating one or more states indicating whether the parametric data for a unique one of the parameters has crossed one or more of the corresponding plurality of predetermined thresholds. The invention also relates to an optical triplexer, comprising the described optical transceiver.

    摘要翻译: 公开了用于确定与光收发器操作相关联的参数的状态的方法,算法,架构,电路和/或系统。 该方法可以包括(a)访问和/或监视与光收发器的操作相关的多个参数中的每个参数的参数数据; (b)将参数数据存储在一个或多个存储器中; (c)将所述多个参数中的每一个的参数数据与相应的多个预定阈值中的至少一个进行比较; 以及(d)产生指示所述参数中唯一参数的参数数据是否已经越过相应的多个预定阈值中的一个或多个的一个或多个状态。 本发明还涉及一种包括所述光收发器的光学三工器。

    Latchable module housings and methods of making and using the same
    7.
    发明授权
    Latchable module housings and methods of making and using the same 有权
    可锁定模块外壳及其制造和使用方法

    公开(公告)号:US09028155B2

    公开(公告)日:2015-05-12

    申请号:US13563682

    申请日:2012-07-31

    IPC分类号: G02B6/36 G02B6/42

    摘要: An optical module housing that may be easily seated, locked in and removed from a socket, thereby reducing or eliminating potential damage to the module and socket, and methods for making and using the housing are disclosed. The module housing generally includes a chassis, one or more pivots attached to the chassis, a latch configured to secure the housing in a corresponding slot when in a locked position, a slider configured to be in contact with and/or connected to the latch and to move the latch relative to the chassis, the latch and/or the slider being configured to move on and/or around the pivot(s) and a handle configured to be in contact with and/or connected to the slider such that when the handle moves from a first position to a second position, the slider and latch move to the locked and/or an unlocked positions.

    摘要翻译: 公开了一种光学模块壳体,其可以容易地安置,锁定并从插座中移除,从而减少或消除对模块和插座的潜在损害,以及制造和使用壳体的方法。 模块壳体通常包括底盘,附接到底盘的一个或多个枢轴,配置成当处于锁定位置时将壳体固定在相应的狭槽中的闩锁,配置成与闩锁接触和/或连接到闩锁的滑块 将闩锁相对于底盘移动,闩锁和/或滑块被配置为在枢轴上和/或周围移动,以及构造成与滑块接触和/或连接到滑块的手柄,使得当 手柄从第一位置移动到第二位置,滑块和闩锁移动到锁定和/或解锁位置。

    Optical transceiver with isolated modulator contacts and/or inputs
    9.
    发明授权
    Optical transceiver with isolated modulator contacts and/or inputs 有权
    具有隔离调制器触点和/或输入的光收发器

    公开(公告)号:US09054813B2

    公开(公告)日:2015-06-09

    申请号:US13824340

    申请日:2013-03-13

    摘要: A multi-channel optical transmitter generally includes a first light source configured to emit light of a first wavelength, a second light source configured to emit light of a second wavelength, a first modulator configured to modulate the light of the first wavelength, and a second modulator configured to modulate the light of the second wavelength. The first modulator has a first anode and a first cathode, and the second modulator has a second anode and a second cathode electrically isolated from the first anode and the first cathode. The modulators (and optionally the light sources) are on a common substrate. A method of transmitting optical signals generally includes modulating light emitted from a first light source using a first modulator, and modulating light emitted from a second light source using a second modulator, where the first modulator receives a first modulation signal, and the second modulator receives a second modulation signal electrically isolated from the first modulation signal.

    摘要翻译: 多通道光发射器通常包括被配置为发射第一波长的光的第一光源,被配置为发射第二波长的光的第二光源,被配置为调制第一波长的光的第一调制器,以及第二光源 调制器被配置为调制第二波长的光。 第一调制器具有第一阳极和第一阴极,并且第二调制器具有与第一阳极和第一阴极电隔离的第二阳极和第二阴极。 调制器(以及可选的光源)在公共衬底上。 传输光信号的方法通常包括使用第一调制器调制从第一光源发出的光,以及使用第二调制器调制从第二光源发射的光,其中第一调制器接收第一调制信号,并且第二调制器接收 与第一调制信号电隔离的第二调制信号。

    Variable bandgap modulator for a modulated laser system
    10.
    发明授权
    Variable bandgap modulator for a modulated laser system 有权
    用于调制激光系统的可变带隙调制器

    公开(公告)号:US08964804B2

    公开(公告)日:2015-02-24

    申请号:US13820102

    申请日:2013-02-19

    摘要: A modulated laser system generally includes a light emission region, a modulation region having a plurality of semiconductive layers, at least one of which includes a quantum well layer having a variable energy bandgap, and an isolation region separating the light emission region and the modulation region. The laser may be an electro-absorption modulated laser, the light emission region may include a distributed feedback laser, and the modulation region may include an electro-absorption modulator. The laser may be manufactured by forming a lower semiconductive buffer layer on a substrate, an active layer including one or more quantum well layers having the variable energy bandgap on or above the lower semiconductive buffer layer, an upper semiconductive buffer layer on or above the active layer, a contact layer on or above the upper semiconductive buffer layer, and an isolation region separating the light emission region and the modulation region.

    摘要翻译: 调制激光系统通常包括发光区域,具有多个半导体层的调制区域,其中至少一个包括具有可变能带隙的量子阱层,以及分离发光区域和调制区域的隔离区域 。 激光器可以是电吸收调制激光器,发光区域可以包括分布式反馈激光器,并且调制区域可以包括电吸收调制器。 可以通过在衬底上形成下半导体缓冲层来制造激光器,活性层包括在下半导体缓冲层上或上方具有可变能带隙的一个或多个量子阱层,活性层上或上方的上半导电缓冲层 层,上半导体缓冲层上或上方的接触层,以及分离发光区域和调制区域的隔离区域。