公开(公告)号：US06697750B1

公开(公告)日：2004-02-24

申请号：US09758774

申请日：2001-01-11

Applicant: Bryan Coin ,  Michael J. Ransford ,  David A. Schwarten ,  Chao Jiang ,  Iqbal M. Dar ,  Andrei Csipkes

Inventor： Bryan Coin ,  Michael J. Ransford ,  David A. Schwarten ,  Chao Jiang ,  Iqbal M. Dar ,  Andrei Csipkes

IPC: G02F100

CPC classification number: H04B10/07 ,  H04J2203/0062

Abstract: A method and apparatus for performing parallel asynchronous testing of a plurality of optical modules utilizes state machines that may be implemented in a common controller. Desired optical tests are selected by an operator. The invention determines if a testing process or instrument required for the selected optical tests is available. A COM port may also be locked for each of the selected optical tests from among a plurality of COM ports to prevent interference between different tests. By reserving resources such as COM ports and testing instruments in this fashion the invention may asynchronously initiate execution of the selected optical tests. If a resource such as a COM port, testing process or instrument is not currently available, the test is place in COM port and testing queues to await availability of that resource. Once a test is completed, the resource is unlocked so that one of the state machines may asynchronously initiate another test. Various displays are generated so that an operator may view the progress of each of the tests. A database is utilized to store test results as well as test recipes and test instrument drivers that aid in the control of a testing architecture.

Abstract translation: 用于执行多个光学模块的并行异步测试的方法和装置利用可以在公共控制器中实现的状态机。 所需的光学测试由操作员选择。 本发明确定所选光学测试所需的测试过程或仪器是否可用。 COM端口也可以针对多个COM端口中的每个所选择的光学测试进行锁定，以防止不同测试之间的干扰。 通过以这种方式预留诸如COM端口和测试仪器的资源，本发明可以异步地启动所选择的光学测试的执行。 如果COM端口，测试过程或仪器等资源当前不可用，则测试将放置在COM端口和测试队列中，以等待该资源的可用性。 一旦测试完成，资源被解锁，使得一个状态机可以异步地启动另一个测试。 生成各种显示，使得操作者可以查看每个测试的进度。 使用数据库来存储测试结果以及有助于测试架构控制的测试配方和测试仪器驱动程序。

公开(公告)号：US06676304B1

公开(公告)日：2004-01-13

申请号：US09758772

申请日：2001-01-11

Applicant: Bryan Coin ,  Michael J. Ransford ,  David A. Schwarten ,  Chao Jiang ,  Iqbal M. Dar ,  Andrei Csipkes

Inventor： Bryan Coin ,  Michael J. Ransford ,  David A. Schwarten ,  Chao Jiang ,  Iqbal M. Dar ,  Andrei Csipkes

IPC: G01N2100

CPC classification number: G01M11/33

Abstract: A system for conducting optical tests on a plurality of optical modules includes a plurality of optical signal sources and optical signal degradation elements optically communicating with input switches. The input switches sources supply optical test signals to optical modules (units under test) plugged into a common shelf. Output optical switches supply the output signals to a range of optical test equipment. A controller utilizes a database of test recipes to supervise and control the optical signal sources, optical signal degradation elements, units under test, input switches, output switches, and test equipment to conduct a variety of optical tests on the modules. With this architecture it is possible to subject a variety of different optical modules to a variety of different optical tests.

Abstract translation: 用于对多个光学模块进行光学测试的系统包括与输入开关光学通信的多个光信号源和光信号劣化元件。 输入开关源将光学测试信号提供给插入公共机架的光学模块（待测单元）。 输出光开关将输出信号提供给一系列光学测试设备。 控制器利用测试配方的数据库来监督和控制光信号源，光信号衰减元件，被测单元，输入开关，输出开关和测试设备，以对模块进行各种光学测试。 利用这种架构，可以对各种不同的光学模块进行各种不同的光学测试。

公开(公告)号：US06590644B1

公开(公告)日：2003-07-08

申请号：US09759563

申请日：2001-01-12

Applicant: Bryan Coin ,  Michael J. Ransford ,  David A. Schwarten ,  Chao Jiang ,  Iqbal M. Dar ,  Andrei Csipkes

Inventor： Bryan Coin ,  Michael J. Ransford ,  David A. Schwarten ,  Chao Jiang ,  Iqbal M. Dar ,  Andrei Csipkes

IPC: G01J142

CPC classification number: G01M11/332

Abstract: A system for calibrating a plurality of optical modules includes a plurality of optical signal sources and optical signal degradation elements optically communicating with input switches. The input switches supply optical test signals to optical modules (units under test) plugged into a common shelf. Calibration switches including variable optical attenuators may be used to adjust the input signal levels and alternately supply adjusted signals to an optical power meter and the units under test. A controller is used to control the adjustment and thereby provide defined, measured signal levels to the units under test. By reading data from the units under test and using these defined signal levels, the optical modules may be calibrated or diagnosed. Output optical switches are used in a similar fashion to calibrate or diagnose the outputs of the units under test. In addition to input/output power calibration, the invention may also perform wavelength calibrations.

Abstract translation: 用于校准多个光学模块的系统包括与输入开关光学通信的多个光信号源和光信号劣化元件。 输入开关将光学测试信号提供给插入公共机架的光学模块（被测单元）。 可以使用包括可变光衰减器的校准开关来调整输入信号电平，并将调整后的信号交替供给光功率计和被测单元。 控制器用于控制调节，从而为被测单元提供定义的测量信号电平。 通过从被测单元读取数据并使用这些定义的信号电平，可以校准或诊断光学模块。 输出光开关以类似的方式用于校准或诊断被测单元的输出。 除了输入/输出功率校准之外，本发明还可以执行波长校准。