System and method for performing high-speed communications over fiber optical networks

  • US 10,771,181 B2
  • Filed: 03/09/2019
  • Issued: 09/08/2020
  • Est. Priority Date: 06/10/2003
  • Status: Active Grant
First Claim
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1. A pluggable optical transceiver module comprising of:

  • an electrical system interface for receiving a first electrical data signal and for transmitting a second electrical data signal;

    an m-ary modulator for increasing the number of bits per symbol in the first electrical data signal to produce a first m-ary modulation signal;

    a digital to analog converter for converting the first m-ary modulation signal to a first electrical m-ary analog modulation signal;

    a driver for amplifying the first electrical m-ary analog modulation signal to an amplified first electrical m-ary analog modulation signal to drive an optical transmitter;

    the optical transmitter for emitting a first optical signal on a first wavelength responsive to and representative of the amplified first electrical m-ary analog modulation signal from the driver;

    an optical detector for receiving a second optical signal on a second wavelength to produce an electrical analog signal;

    an amplifier for amplifying the electrical analog signal to an amplified electrical analog signal;

    a clock data recovery unit for recovering clock and data information to produce a second m-ary modulation signal from the amplified electrical analog signal;

    an equalizer for performing equalization on the second m-ary modulation signal to remove noise; and

    an m-ary demodulator for decreasing the number of bits per symbol in the equalized second m-ary modulation signal to produce the second electrical data signal.

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