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US 2023/0146826 A1Published application
Digital tone-based apparatus and method for measuring the frequency response of coherent optical transmitters
AssigneeInfinera Corporation
InventorsAmir Rashidinejad, Wenbo Gao
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Abstract
An optical network component, system, and method are herein described. The system and method include introducing an AM tone and data to an optical modulator generating a modulated optical signal, measuring an amplitude response of the AM tone within the modulated optical signal, calculating a frequency response based on the amplitude response, and calibrating the optical modulator with the frequency response.
Claims9
A method, comprising:
- applying an AM tone with a fixed AM frequency at a first known carrier frequency component at a first period of time and a second known carrier frequency component at a second period of time;
- measuring a power of a modulated optical signal generated based at least in part on the AM tone at the first period of time and at the second period of time;
- and
- normalizing measured power to obtain an amplitude response.
1 more element
Dependencies are inferred from the claim text.