Control Systems For Optical Devices And Subassemblies

摘要

The present invention describes systems 1, 12 and methods for control of optical devices and communications subsystems. The control system comprises ASIC sub-modules and programmable circuitry 25 which may be integrated into a self-contained, stand-alone module. In one embodiment, the module has one or more FPGAs 25 in conjunction with RF and Digital ASICs 30, an integrated cross-connect 36 between the FPGA and digital and RF ASIC building blocks, and an integrated cross-connect 41 between the ASIC and optical circuits and supporting functions. Programmable chip control and other transmission and tuning functions, programmable transponders, and each FPGA/ASIC 25, 30 that is incorporated into a transponder form factor or a host board, can have the same or different functionalities and other parameters including but not limited to modulation format.

主权项

1. An optical module or subassembly for communication with a host board, the optical module or subassembly comprising:
a transmitter optical subassembly for receiving an electrical signal and converting the received electrical signal into an optical signal; a transmitter drive coupled to the transmitter optical subassembly; a receiver optical subassembly for receiving an optical signal and converting the received optical signal into an electrical signal; a receiver interface coupled to the receiver optical subassembly; and a control system in electrical communication with the host board, wherein the control system comprises a programmable central processing device including a field programmable gate array (FPGA), and monitoring and processing circuitry including application specific integrated circuit (ASIC), where the monitoring and processing circuitry is programmable for implementation into an optical device, the physical and transport layer communications specifications for a plurality of different applications, and includes analog-to-digital conversion (ADC) and digital-to-analog conversion (DAC).