High-speed optical transceiver systems and methods

摘要

A high-speed 100G optical transceiver, such as for InfiniBand and Ethernet, with associated mapping to frame various different protocols. The optical transceiver utilizes an architecture which relies on standards-compliant (i.e., multi-sourced) physical client interfaces. These client interfaces are back-ended with flexible, programmable Field Programmable Gate Array (FPGA) modules to accomplish either InfiniBand or Ethernet protocol control, processing, re-framing, and the like. Next, signals are encoded with Forward Error Correction (FEC) and can include additional Optical Transport Unit (OTU) compliant framing structures. The resulting data is processed appropriately for the subsequent optical re-transmission, such as, for example, with differential encoding, Gray encoding, I/Q Quadrature encoding, and the like. The data is sent to an optical transmitter block and modulated onto an optical carrier. Also, the same process proceeds in reverse on the receive side.

主权项

1. An optical transceiver comprising:
processing circuitry adapted to receive signals according to a protocol comprising one of Ethernet and Infiniband, wherein the processing circuitry is configured to perform protocol control, processing, and reframing on the signals, based on the protocol; framing circuitry connected to the processing circuitry, wherein the framing circuitry is configured to perform Forward Error Correction (FEC) and framing; and an optical modulator and an optical demodulator connected to the framing circuitry, wherein the optical modulator is configured to transmit an optical signal with in-phase data and quadrature data corresponding to the signals processed by the framing circuitry and the processing circuitry, and wherein the optical demodulator is configured to receive an optical signal with in-phase data and quadrature data and provide the received optical signal to the framing circuitry and the processing circuitry.