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    • 6. 发明授权
    • Method for testing laser using side mode suppression ratio
    • 使用侧模抑制比测试激光的方法
    • US07065111B2
    • 2006-06-20
    • US10823843
    • 2004-04-14
    • Charles W. Miller
    • Charles W. Miller
    • H01S3/13
    • H01S5/0014H01S5/0617
    • Systems, methods and computer software are provided for testing a laser. Initially, the laser is operated at a first bias setting and a data rate of about 10 Gb/s, and a first side mode suppression ratio of the laser output is measured that is based on a first ratio of a highest and next highest optical power peaks as a function of a first wavelength. Next, the laser is operated at a second bias setting and a data rate of about 10 Gb/s, and a second side mode suppression ratio of the laser output is measured that is based on a second ratio of a highest and next highest optical power peaks as a function of a second wavelength. A test result for the laser is then generated in accordance with a difference between the first and second side mode suppression ratios.
    • 提供系统,方法和计算机软件来测试激光。 最初,激光器以第一偏置设置和大约10Gb / s的数据速率操作,并且测量基于最高和最高光功率的第一比率的激光输出的第一侧模抑制比 峰值作为第一波长的函数。 接下来,激光器以第二偏置设置和约10Gb / s的数据速率操作,并且测量基于最高和次高光功率的第二比率的激光输出的第二侧模抑制比 峰值作为第二波长的函数。 然后根据第一和第二侧模式抑制比之间的差产生激光器的测试结果。
    • 7. 发明授权
    • System and method for testing a laser module by measuring its side mode suppression ratio
    • 通过测量其侧模抑制比来测试激光模块的系统和方法
    • US06778566B2
    • 2004-08-17
    • US10246038
    • 2002-09-18
    • Charles W. Miller
    • Charles W. Miller
    • H01S300
    • H01S5/0014H01S5/0617
    • A key requirement of a fiber optic communication system is its ability to transmit data from one location to another relatively free of errors in the data stream. The data stream error rate is a function of the error rate of the laser module utilized to transmit the data. A fast and efficient method of testing a laser module, in order to estimate its bit error rate, is to measure side mode suppression ratios of the laser module output while operating the laser module at each of a first and second bias setting, and to generate a test result for the laser module in accordance with the difference between the first and second side mode suppression ratio measurements. Furthermore, a system is provided for performing this laser module testing method.
    • 光纤通信系统的一个关键要求是能够将数据从一个位置传输到另一个位置,而数据流中的数据相对较少。 数据流错误率是用于传输数据的激光模块的错误率的函数。 为了估计其误码率,测试激光模块的快速有效的方法是在第一和第二偏置设置中的每一个处操作激光模块时测量激光模块输出的侧模抑制比,并产生 根据第一和第二侧模式抑制比测量之间的差异,激光模块的测试结果。 此外,提供用于执行该激光模块测试方法的系统。
    • 10. 发明授权
    • Scribing tool for marking wall panels for cutting to fit the contour of
a wall corner
    • 划线工具,用于标记墙板以进行切割以适应墙角的轮廓
    • US4161821A
    • 1979-07-24
    • US841739
    • 1977-10-13
    • Charles W. Miller
    • Charles W. Miller
    • B25H7/04B43K23/00B43L13/02
    • B25H7/04B43K23/00
    • A scribing tool for marking wall panels for cutting them to fit the contour of a wall corner. The tool body has either a flat face or a rotating roller for engaging the corner wall surface that is perpendicular to the wall being paneled. The tool body carries a scribing element or pencil. In one species the scribing element is axially adjustable in a selected one of intersecting V-grooves in the top surface of the tool body, and a flat face is perpendicularly movable relatively to the tool body by being on the vertical face of an L-shaped strap whose medially slotted lower reach underlies the tool body. In a second species the scribing tool is axially adjustable in a V-groove in the upper surface of a disc rotatably mounted on the top surface of the tool body. In both flat-faced species, a rod passing vertically through the tool body clamps the scribing element and the adjustable body part in their adjusted positions by means of a nut on its threaded lower end. In a third species a roller is mounted on an axle pin fixed to a handle at an angle of 45 degrees. The axle pin terminates in a conical scriber point and is spring-retractable into the roller across the plane of its wall-engaging flat face. When the handle is held horizontally its center line passes close to the intersection line of the corner wall surfaces. A pair of sheet-metal gages having panel-gripping pockets of a depth equal to the amount of a preselected panel overlap, and also equal to the scriber-tool setting, are desirably employed.
    • 用于标记墙板的划线工具,用于切割它们以适应墙角的轮廓。 工具主体具有平面或旋转辊,用于接合垂直于被镶板的壁的角壁表面。 工具身体带有划线元素或铅笔。 在一种物种中,划线元件可在工具主体顶表面中相交的V形槽中所选择的一个中可轴向调节,并且平面通过在L形的垂直面上相对于工具主体垂直移动 其中间开槽的下部接合件的底座位于工具主体下方。 在第二种类型中,划线工具可在可旋转地安装在工具主体的顶表面上的盘的上表面中的V形槽中轴向调节。 在两个平面物种中,垂直穿过工具主体的杆通过其螺纹下端的螺母将划线元件和可调节主体部分夹在调整位置。 在第三种类中,辊以45度的角度安装在固定到手柄的轴销上。 轴销终止于锥形划线器点,并且可弹簧缩回到滚子中,穿过其与壁接合平面的平面。 当手柄水平地握住时,其中心线靠近角壁表面的交线。 优选采用具有与预选面板重叠量相等的深度的面板夹持口袋的一对金属片,并且也等于划线器工具设置。