Reconfigurable DSP performance in optical transceivers

An optical transceiver system that uses digital signal processing to process a data stream sent through a fiber optical channel to modify an optical receiver of the optical transceiver system capabilities both to achieve the a predetermined end-to-end bit error rate while to altering power dissipation in the optical receiver to that sufficient to meet said end-to-end bit error rate, the optical transceiver system comprising:

• an optical transmitter;
• and the optical receiver, the optical receiver comprising digital logic;
• and a controller in electrical communication with the optical receiver, wherein the controller controls either, the bypassing of portions of the digital logic, or at least reduction of one of the value of power to, parameters of or clock to portions of the digital logic, so as to reduce power dissipation in the optical receiver while meeting the end-to-end bit error rate,
• wherein the digital logic further includes an analog to digital converter and the power utilization is reduced by reducing at least one of the sampling rate and the sampling precision of the analog to digital converter.

An optical transceiver system that uses digital signal processing to process a data stream sent through a fiber optical channel to modify an optical receiver of the optical transceiver system capabilities both to achieve the a predetermined end-to-end bit error rate while to altering power dissipation in the optical receiver to that sufficient to meet said end-to-end bit error rate, the optical transceiver system comprising:

• an optical transmitter;
• and the optical receiver, the optical receiver comprising digital logic;
• and a controller in electrical communication with the optical receiver, wherein the controller controls either, the bypassing of portions of the digital logic, or at least reduction of one of the value of power to, parameters of or clock to portions of the digital logic, so as to reduce power dissipation in the optical receiver while meeting the end-to-end bit error rate,
• wherein the controller controls in response a measurement of at least one channel parameter,
• wherein the measured parameter is bulk dispersion and
• wherein if a compensation of the bulk dispersion is required that is at a predetermined level so as to be compensated by the polarization mode dispersion equalization, the bulk dispersion compensation module is bypassed.