Coherent optical transceiver with programmable application modes

An integrated circuit, circuit configurable in a plurality of different application modes comprising at least a first application mode and a second application mode, the integrated circuit comprising:

• an analog front end comprising an analog-to-digital converter for receiving an analog signal vector from a coherent optical receiver, the analog signal vector representing an optical signal, the analog-to-digital converter generating a digital signal vector based on the analog signal vector, the analog-to-digital converter configurable to operate at different sampling rates in the different application modes;
• a digital signal processor (DSP) configured to generate a demodulated signal vector based on the digital signal vector, the DSP comprising:
• a symbol de-mapper to decode the digital signal vector to generate a demodulated signal vector, wherein the demodulated signal vector is generated according to a first demodulation scheme and the demodulated signal vector has a first symbol rate at a given bit rate when configured in the first application mode, and wherein the demodulated signal vector is generated according to a second modulation scheme and the demodulated signal vector has a second symbol rate at the given bit rate when configured in the second application mode, the second symbol rate different than the first symbol rate, and the second demodulation scheme having a different number of bits per symbol than the first demodulation scheme;
• and
• a digital interface to transmit the demodulated signal vector to a host at the given bit rate.

An integrated optics module comprising:

• a register storing a configuration of the integrated optical module from a plurality of different predefined application modes, each application mode configuring the integrated optical module for communication with a particular type of optical network, the plurality of different application modes including at least a first application mode and a second application mode;
• a optical receiver to receive a first optical signal from an optical channel and convert the first optical signal to a first analog signal vector;
• a digital receiver to receive the first analog signal vector from the optical receiver, and to generate a first digital signal vector representing receive data of the optical signal;
• a digital transmitter to receive a second digital signal vector representing transmit data to be transmitted over the optical channel, and to generate a second analog signal vector for providing to an optical transmitter, wherein the digital transmitter comprises:
• a digital signal processor comprising a symbol mapper to encode the second digital signal vector to generate a modulated signal vector, wherein the modulated signal vector is generated according to a first modulation scheme and the modulated signal vector has a first symbol rate at the given bit rate when configured in the first application mode, and wherein the modulated signal vector is generated according to a second modulation scheme and the modulated signal vector has a second symbol rate at the given bit rate when configured in the second application mode, the second symbol rate different than the first symbol rate, and the second modulation scheme having a different number of bits per symbol than the first modulation scheme;
• and
• an analog front end including a digital-to-analog converter to generate the second analog signal vector based on the modulated signal vector, the digital-to-analog converter configurable to operate at different sampling rates in the different application modes;
• an optical transmitter to receive the second analog signal vector and convert the second analog signal vector to a second optical signal for transmission over the optical channel.