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    • 1. 发明申请
    • Burst-Mode Laser Control Circuit and the Method Thereof
    • 突发模式激光控制电路及其方法
    • US20160119061A1
    • 2016-04-28
    • US14522409
    • 2014-10-23
    • Xu JIANGYuan SONGShuyuan ZHANGYuanzhong XU
    • Xu JIANGYuan SONGShuyuan ZHANGYuanzhong XU
    • H04B10/50H04B10/564
    • H04B10/503H01S5/06832H01S5/12H04B10/272H04B10/564
    • A burst-mode laser control circuit and related methods thereof are disclosed. Using an APC loop with an additional burst-mode control circuit, and a switch in series with a diode and in parallel with the laser, a continuous-mode laser driver is enabled to operate in burst-mode by turning the switch on or off via external logic. Burst-mode control manages the switch, and a bandwidth-select circuit using a high or low logic level input, wherein the laser is disabled and the bandwidth-select circuit enters a fast-track mode when the external logic signal has a first level. The laser provides regular optical signals, and the bandwidth-select circuit enters a slow-track mode, thereby enabling the APC loop to operate normally, when the external logic signal has a second level. In addition to a low cost and simple implementation, the control circuit and method provide lasers with a fast response capability using one or more externally-controlled switch circuits to meet demands of PON systems for burst-mode ONUs.
    • 公开了脉冲串激光器控制电路及其相关方法。 使用带有附加突发模式控制电路的APC回路以及与二极管串联并与激光并联的开关,连续模式激光驱动器可以通过打开或关闭开关来以突发模式运行 外部逻辑。 突发模式控制管理开关,以及使用高或低逻辑电平输入的带宽选择电路,其中当外部逻辑信号具有第一电平时,禁用激光器并且带宽选择电路进入快速模式。 激光器提供常规的光信号,并且当外部逻辑信号具有第二电平时,带宽选择电路进入慢轨模式,从而使APC环路能够正常工作。 除了低成本和简单的实现之外,控制电路和方法使用一个或多个外部受控的开关电路为激光器提供快速响应能力,以满足用于突发模式ONU的PON系统的需求。
    • 2. 发明申请
    • DC Level Detection Circuit Between High Speed Signal Line Connecting Ports, A System Including the Circuit, and Methods of Making and Using the Same
    • 高速信号线连接端口之间的直流电平检测电路,包括电路的系统及其制造和使用方法
    • US20160146862A1
    • 2016-05-26
    • US14558622
    • 2014-11-25
    • Shengzhi CAIQiuming WEIYuanjun HUANGYuanzhong XU
    • Shengzhi CAIQiuming WEIYuanjun HUANGYuanzhong XU
    • G01R19/00G01R15/14
    • G01R31/045G06F2101/00H01L21/00H01L2221/00
    • A DC level detection circuit between high speed signal line connecting ports and a system using the same in optical communications is disclosed. Corresponding ports of a high speed signal line each have an additional resistor, where one additional resistor has a resistance significantly greater than that of the other resistor. The smaller resistor is grounded. The larger resistor is connected to a DC voltage source, a low pass filter, and a signal detection port. Thus, when both ports of the high speed signal line are connected, a status of the electrical level detected at the signal detection port changes. The circuit detects the connection state of the high speed signal line without negative effects on signal transmission and is applicable to various circuits, especially plug-in modules and corresponding slots. Thus, the circuit further enables signal port multifunctionality, increases module installation accuracy, and provides higher compatibility for plug-in modules.
    • 公开了高速信号线连接端口之间的DC电平检测电路和在光通信中使用该直流电平检测电路的系统。 高速信号线的对应端口各自具有附加电阻器,其中一个附加电阻器的电阻显着大于另一个电阻器的电阻。 较小的电阻器接地。 较大的电阻器连接到直流电压源,低通滤波器和信号检测端口。 因此,当连接高速信号线的两个端口时,在信号检测端口检测到的电平的状态改变。 该电路检测高速信号线的连接状态,对信号传输没有负面影响,适用于各种电路,特别是插件模块和相应的插槽。 因此,该电路进一步实现信号端口多功能性,增加模块安装精度,并为插件模块提供更高的兼容性。