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    • 1. 发明申请
    • APPARATUS AND METHOD FOR ADAPTIVELY CONTROLLING THE IMPULSE RESPONSE OF THE OPTICAL SIGNAL OUTPUT FROM A LASER OF AN OPTICAL TRANSMITTER (TX)
    • 用于适应性地控制来自光学发射器(TX)的激光的光信号输出的脉冲响应的装置和方法
    • US20100303472A1
    • 2010-12-02
    • US12474433
    • 2009-05-29
    • Frederick W. MillerRon Kaneshiro
    • Frederick W. MillerRon Kaneshiro
    • H04B10/04
    • H01S5/06832H01S5/06835H04B10/504H04B10/508
    • An apparatus and a method are provided for adaptively adjusting the impulse response of the optical output of the laser of the optical TX in a way that ensures that the optical waveform being transmitted from the optical TX into the optical waveguide of the optical link has a desired waveform shape that improves or optimizes the performance of the optical link across variations in temperature, power supply, laser process corners, IC process corners, component aging, mechanical manufacturing tolerances, and part alignment tolerances. Adaptively adjusting the impulse response of the optical signal output from the laser in this way allows the optical TX to dynamically adapt to and compensate for a wide range of factors that typically cause performance degradation and result in reduced product yields, increased testing times, and increased test complexity, and higher costs. This, in turn, allows manufacturing tolerances and alignment tolerances to be relaxed, test times and test complexity to be reduced, and overall manufacturing and testing costs to be reduced.
    • 提供了一种装置和方法,用于以确保从光学TX发射到光链路的光波导中的光波形具有期望的方式自适应地调整光TX的激光的光输出的脉冲响应 波形形状,其改善或优化了光学连接器在温度,电源,激光工艺拐角,IC工艺拐角,部件老化,机械制造公差和部件对准公差等变化方面的性能。 以这种方式自适应地调节从激光器输出的光信号的脉冲响应允许光TX动态地适应并补偿通常导致性能下降并且导致产品产量降低,增加的测试时间和增加的广泛范围的因素 测试复杂性和更高的成本。 这反过来又允许减小制造公差和对准公差,减少测试时间和测试复杂性,并降低总体制造和测试成本。
    • 2. 发明授权
    • Method and apparatus for controlling laser modulation based on measurements of average laser output power
    • 基于平均激光输出功率的测量来控制激光调制的方法和装置
    • US07787507B2
    • 2010-08-31
    • US11621590
    • 2007-01-10
    • Frederick W. Miller
    • Frederick W. Miller
    • H01S3/00
    • H01S5/06H01S3/131
    • Laser modulation is controlled by using a measurement of the average output power level of the laser to adjust the amplitude of the modulation current as necessary to prevent the laser from being over- or under-modulated and to adjust the amplitude of the bias current as necessary to maintain the average output power level of the laser at a desired, reasonably constant level. The laser controller receives an electrical feedback signal from a laser output power monitoring device and uses this signal to obtain the measurement of the average output power level of the laser. Based on this measurement, a bias current control signal and a modulation current control signal are generated and output to the laser driver to cause the laser driver to set the amplitude of the bias current to achieve a desired average output power level and to set the amplitude of the modulation current to prevent over- and under-modulation.
    • 通过使用激光器的平均输出功率电平的测量来控制激光调制,以根据需要调整调制电流的幅度,以防止激光被过调制或欠调制,并根据需要调整偏置电流的幅度 以将激光器的平均输出功率水平保持在期望的,相当恒定的水平。 激光控制器从激光输出功率监测装置接收电反馈信号,并使用该信号来获得激光器的平均输出功率电平的测量值。 基于该测量,产生偏置电流控制信号和调制电流控制信号并将其输出到激光驱动器,以使激光驱动器设置偏置电流的幅度以获得期望的平均输出功率电平并设置振幅 的调制电流,以防止过调制和欠调制。
    • 3. 发明申请
    • BI-DIRECTIONAL SIGNAL TRANSMISSION SYSTEM USING A DUAL-PURPOSE PIN
    • 使用双用途PIN的双向信号传输系统
    • US20100054754A1
    • 2010-03-04
    • US12198483
    • 2008-08-26
    • Frederick W. MillerMichael A. Robinson
    • Frederick W. MillerMichael A. Robinson
    • H04B10/00
    • H04B10/50H04B10/40H04B10/66
    • A signal transmission system in accordance with the invention is implemented using a dual-purpose pin of an optical sub-assembly. The dual-purpose pin is used to propagate an analog signal out of the optical sub-assembly and also for providing an access point where an external element may be coupled to the optical sub-assembly for modulating the analog signal. The optical sub-assembly houses a photodetector, a signal transmitter circuit, and a signal receiver circuit. The photodetector receives light and generates a corresponding electrical signal indicative of the light intensity. The signal transmitter circuit converts the electrical signal received from the photodetector into the analog signal that is transmitted out of the dual-purpose pin. The signal receiver circuit located inside the optical sub-assembly is configured to monitor the modulated analog signal from the dual-purpose pin and generate therefrom, a control signal inside the optical sub-assembly.
    • 根据本发明的信号传输系统使用光学子组件的双用途销来实现。 双用途引脚用于将模拟信号传播出光学子组件,并且还用于提供接入点,其中外部元件可以耦合到光学子组件以调制模拟信号。 光学子组件容纳光电检测器,信号发射器电路和信号接收器电路。 光电检测器接收光并产生指示光强度的相应电信号。 信号发送器电路将从光电检测器接收的电信号转换为从双用途引脚传输的模拟信号。 位于光学子组件内部的信号接收器电路被配置为监视来自双用途引脚的调制模拟信号并从其产生在光学子组件内部的控制信号。
    • 7. 发明授权
    • Parallel optical transceiver module having a balanced laser driver arrangement
    • 具有平衡激光驱动器布置的并行光收发模块
    • US08559824B2
    • 2013-10-15
    • US12241771
    • 2008-09-30
    • Laurence R. McCollochFrederick W. Miller
    • Laurence R. McCollochFrederick W. Miller
    • H04B10/00H01S5/42
    • G02B6/4246G02B6/4249G02B6/428H01S5/02248H01S5/02276H01S5/042H01S5/4025
    • A parallel optical transceiver module is provided that has a balanced laser driver arrangement. The balanced laser driver arrangement of the invention includes at least two laser diode driver ICs, which preferably are located on opposite sides of a laser diode IC. Each laser diode driver IC drives a subset (e.g., half) of the total number of laser diodes of the laser diode IC. Because each laser diode driver IC drives a subset of the total number of laser diodes of the laser diode IC, the pitch (i.e., distance) between the high-speed signal pathways within the laser diode driver ICs can be increased. Increasing the pitch between the high-speed signal pathways provides several advantages, including, for example, reducing the potential for electrical cross-talk and inductive coupling between adjacent wire bonds that connect the output driver pads on the driver IC to the respective input pads on the laser diode IC.
    • 提供了具有平衡的激光驱动器布置的并行光收发器模块。 本发明的平衡激光器驱动器装置包括至少两个激光二极管驱动器IC,其优选地位于激光二极管IC的相对侧上。 每个激光二极管驱动器IC驱动激光二极管IC的激光二极管总数的子集(例如,一半)。 因为每个激光二极管驱动器IC驱动激光二极管IC的激光二极管的总数的一个子集,所以可以增加激光二极管驱动器IC内的高速信号通路之间的间距(即,距离)。 增加高速信号通道之间的间距提供了几个优点,包括例如减少电串扰和相邻引线键合之间的电感耦合的可能性,这些引线将驱动器IC上的输出驱动器焊盘连接到相应的输入焊盘上 激光二极管IC。
    • 8. 发明授权
    • Active optical cable (AOC) and a method and apparatus for performing power management in the AOC
    • 有源光缆(AOC)以及在AOC中执行电源管理的方法和装置
    • US08534931B2
    • 2013-09-17
    • US13013243
    • 2011-01-25
    • Frederick W. Miller
    • Frederick W. Miller
    • G02B6/36G06F1/32
    • G06F1/32G02B6/4214G02B6/4228G02B6/4284
    • An active optical cable is provided that incorporates a power management solution. The AOC has plugs that are configured to mate with respective USB sockets. The AOC is used to interconnect a USB host with a USB device. To the USB host and to the USB device, the AOC appears to be a standard USB electrical cable. Each of the plugs of the AOC has an optical-to-electrical and an electrical-to-optical (OE/EO) conversion module that converts electrical USB signals output from the USB host or USB device into optical signals and converts optical signals carried on the optical fibers of the AOC into electrical USB signals. The plugs include controllers that monitor certain conditions of the AOC and that select the power levels to be used in the plugs based on detected conditions.
    • 提供了一种包含电源管理解决方案的有源光缆。 AOC具有配置为与各个USB插座配合的插头。 AOC用于将USB主机与USB设备互连。 对于USB主机和USB设备,AOC似乎是标准的USB电缆。 AOC的每个插头都具有光电和光电(OE / EO)转换模块,可将从USB主机或USB设备输出的电USB信号转换为光信号,并转换为 AOC的光纤变成电气USB信号。 插头包括监控AOC的某些条件的控制器,并根据检测到的条件选择插头中使用的功率电平。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR PERFORMING DIRECT CURRENT (DC) OFFSET CANCELLATION IN AN OPTICAL COMMUNICATIONS DEVICE
    • 用于在光通信设备中执行直流(DC)偏移消除的方法和装置
    • US20100254711A1
    • 2010-10-07
    • US12417919
    • 2009-04-03
    • Frederick W. Miller
    • Frederick W. Miller
    • H04B10/00
    • H03F3/087H03K5/003H04B10/6932
    • An apparatus and method are provided that enable a direct current (DC) offset cancellation (OC) feedback control loop of an optical TX or optical RX to be opened and closed and the bandwidth (BW) of the loop to be adjusted based on a status of an input signal to the RX or TX. Opening and closing the loop and adjusting the BW of the loop allows lower data rates to be achieved and allows relatively long patterns of consecutive 1s or 0s to be transmitted or received without being cancelled out due to the low cutoff frequency of the loop. In addition, opening and closing the loop and adjusting its BW allows the foregoing advantages to be realized without causing an increase in the startup settling time period or in the signal detection time period of the optical TX or RX.
    • 提供了一种能够使光TX或光RX的直流(DC)偏移消除(OC)反馈控制环路被打开和关闭并且基于状态调整循环的带宽(BW)的装置和方法 输入信号到RX或TX。 打开和关闭循环并调整循环的BW允许实现较低的数据速率,并且由于循环的低截止频率,允许发送或接收连续的1或0的相对较长的模式而不被抵消。 此外,打开和关闭环路并调整其BW允许实现上述优点,而不会引起启动建立时间段或光学TX或RX的信号检测时间段的增加。