Jds Uniphase Corporation

Darrel Kanagy

David Schneider

Jay J Pierce

Christopher A Zuhlke

A method and system for providing gain normalization in a MEMS control system and/or device includes moving a MEMS structure from a first position wherein light is redirected from a first input port to an output port to a second position wherein light is redirected from a second input port to the output port, dithering an orientation of the MEMS structure, monitoring an intensity of the dithered light and providing a feedback signal in dependence upon the monitored intensity, and using the feedback signal, determining a control loop gain for active alignment of the MEMS structure. Gain normalization is achieved by applying a fitting function, which is split into a gain control loop gain part and a mechanical part.

MEMS control system gain normalization

The invention relates to optoelectronic modules for generating and/or receiving optical signals for use in fiber-optic communication systems, such as optical transponders or transceivers, having a reconfigurable control and status (C&S) interface with a host device. The optoelectronic module includes an electrical multi-pin host connector having a plurality of pins for communicating a plurality of digital C&S signals between the host and the module, functional hardware responsive to the digital control signals and comprising sensing means for generating digital status signals, and processing means formed by an FPGA and a processor for processing the digital C&S signals. The FPGA is disposed in communications paths between the host connector on one side, and the functional hardware and the processor on the other side, and programmed for routing each of the discrete C&S signals between the C&S pins of the host connector and the processor, and between the C&S pins and the functional hardware, thereby providing reconfigurability of said routing by downloading a different set of FPGA instructions.

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Melbourne, FL, United States of America

Darrel Kanagy