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US 11,695,485 B1Granted
Impairment generation
AssigneeAcacia Communications, Inc.
InventorsAntonio Caballero Jambrina, Miquel Mestre Adrover, Pierre Humblet
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Abstract
A method, system, and apparatus for emulating impairments in a communication system.
Claims18
A method comprising:
- generating from an electrical signal, using a coherent optical transceiver comprising one or more components including a digital signal processor (DSP), control circuitry, and a photointegrated circuit (PIC), a light signal of a wavelength of light encoded with coherent optical data impaired with one or more emulated impairments;
- the coherent optical transceiver enabled to encode an electrical signal coherently on a wavelength of light and decode a coherent data encoded on a wavelength of light to an electrical signal;
- wherein the optical transceiver encodes the coherent data on the light signal;
- wherein the one or more emulated impairments are generated by the coherent optical transceiver to emulate impairments that occur during coherent optical communication without the need for specialized equipment;
- wherein the one or more emulated impairments are included in the light signal;
- wherein the one or more emulated impairments interfere with the ability to decode the encoded coherent data on the wavelength of light to enable testing of the ability of a coherent optical communication system to handle the emulated impairments;
- and
- looping the light signal from an output of the coherent optical transceiver to an input of the coherent optical transceiver to self test tolerance of the optical transceiver to be able to remove the one or more emulated impairments in the light signal and recover the encoded data.
5 more elements
An apparatus for generating one or more emulated impairments for a wavelength of light in a coherent optical system comprising:
- an optical transceiver comprising one or more components including a digital signal processor (DSP), control circuitry, and a photointegrated circuit (PIC);
- wherein the coherent optical transceiver is enabled to generate a light signal of a wavelength of light;
- wherein the coherent optical transceiver is enabled to encode the light signal with data impaired with one or more emulated impairments;
- the coherent optical transceiver enabled to encode an electrical signal coherently on a wavelength of light and decode a coherent data encoded on a wavelength of light to an electrical signal;
- wherein the coherent optical transceiver is enabled to generate the one or more emulated from one or more components within the coherent optical transceiver to cause the one or more impairments to be included in the light signal without the need for specialized equipment;
- wherein the one or more emulated impairments interfere with the ability to decode the encoded coherent data on the wavelength of light to enable testing of the ability of a coherent optical communication system to handle the emulated impairments wherein the one or more components of the coherent optical transceiver are within the coherent optical transceiver;
- wherein an emulated impairment of the one or more emulated impairments is noise and wherein the digital signal processor is enabled to generate the emulated impairment by generating a set of samples according to a random distribution and use the samples to augment a set of values to simulate the addition of noise.
4 more elements
A system for generating one or more emulated impairments in an optical system comprising:
- an optical transceiver comprising one or more components including a digital signal processor (DSP), control circuitry, and a photointegrated circuit (PIC);
- the coherent optical transceiver enabled to encode an electrical signal coherently on a wavelength of light and decode a coherent data encoded on a wavelength of light to an electrical signal using the one or more components;
- wherein the optical transceiver is enabled to generate a light signal of a wavelength of light;
- wherein the coherent optical transceiver is enabled to encode the light signal with electrical data impaired with one or more emulated impairments using an optical transceiver;
- wherein the optical transceiver is enabled to generate the one or more emulated impairments within the coherent optical transceiver to cause the one or more impairments to be included in the light signal without the need for specialized equipment;
- wherein the one or more emulated impairments interfere with the ability to decode the encoded coherent data on the wavelength of light to enable testing of the ability of a coherent optical communication system to handle the emulated impairments wherein the one or more components of the coherent optical transceiver are within the coherent optical transceiver;
- wherein an emulated impairment of the one or more emulated impairments is noise and wherein the digital signal processor is enabled to generate the emulated impairment by generating a set of samples according to a random distribution and use the samples to augment a set of values to simulate the addition of noise.
4 more elements
Dependencies are inferred from the claim text.