Ciena Corporation

Mila Obradovic

Iqbal Mahmud Dar

John F Floyd

Alisher Askarkhodjaev

Jerome Humberson

A database architecture and method of using a database is disclosed. The database is intended for use with a product stress testing system in which a large number of different modules may be subjected to a variety of stressors including environmental stressors and functional load testing. The database also enables a wide variety of test and communication equipment to be used in an efficient manner to test and communicate with the module being tested. Stress test results may be associated with the various products, the results may be mapped against product-specific test criteria and generic commands may be translated to product-specific commands.

Stress-test information database structure and method of use

A virtual oven efficiently conducts stress testing of large numbers of modules. The virtual oven includes a logical grouping of modules, a controller, test instruments and a database which are all connected via a network. The logical groupings of modules of several virtual ovens may be physically accommodated within a single environmental stress screening room. Switching between modules in a logical group permits a single test piece of test equipment to be time-shared among the modules in the logical group. The method of bum-in testing a logical group of modules rotates a test sequence, including passive and active test cycles, between the modules. A test signal is split and supplied to multiple modules. Passive testing may be performed by monitoring parameters of the module while the test signal is supplied to the module. Active testing may be a functional test of the module in which the test signal is supplied to, processed by, and output from the module. Such test signals output from the modules are switched to the test equipment on a time-share basis. In this way, the number or expensive test equipment set-ups may reduced. The controller for each virtual oven also generates displays so that a user can track the test progress of all modules within the virtual oven. The controller also builds a database of the active and passive tests for each module. A graphical user interface may be used to interact with the virtual oven, control the testing, and view the database.

Automated monitoring system, virtual oven and method for stress testing logically grouped modules

A frequency of an ultrasonic cleaner for cleaning an optical fiber can be varied, thereby facilitating removal of particles of various sizes. The control of the varying may be predetermined or may be closed loop. The control may also alter the duration of the application of the frequency. A container which insures a set position of the fiber and/or immersion of the fiber in a cleaning solution may be employed. The sizes of particles on the fiber to be cleaned may be determined and parameters for cleaning may be selected in accordance with the determined sizes.

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Germantown, MD, United States of America

Mila Obradovic