Patent ID: 11916595
Assignee: THE JALALI FAMILY TRUST DATED DECEMBER 30, 2006.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A receiving device in a subranging electro-optic modulator (SEOM) system, comprising:
a wavelength division multiplexer, coupled to an optical fibre or a free space optical communication channel, configured to receive and demultiplex a multiplexed optical signal received from a transmitting device in a SEOM system and to generate a plurality of received modulated optical signals;
a plurality of photodetectors, coupled to the wavelength division multiplexer, the plurality of photodetectors to detect an associated one of the plurality of received modulated optical signals;
a plurality of analog-to-digital converters (ADCs), coupled to an associated plurality of photodetectors, the plurality of ADCs configured to convert the detected plurality of received analog or multi-level modulated optical signals into a plurality of received digital modulated optical signals;
adjusting an amplitude of each of the plurality of received digital modulated optical signals to compensate for the wavelength dependence of a modulation index, of the photodetector response and other interchannel mismatches; and
a thresholding module, coupled to the plurality of ADCs, the thresholding module configured to perform a thresholding operation on the received digital modulated optical signals to identify a range between a minimum voltage and a maximum voltage, wherein the range corresponding to a linear portion of a transfer function; and
a splicing or fusing module, coupled to the thresholding module, the splicing or fusing module configured to splice or fuse the plurality of received digital modulated optical signals into a final received optical signal, wherein the final received optical signal spans a linear portion of each of a plurality of electro-optic modulators.