Calibration of pluggable optical module
US10128956B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2016 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Jun 10, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/254
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical communications apparatus comprising a host (100) and an optical module (200) comprising a Mach-Zehnder modulator (202), MZM, wherein the optical module is removably connected to the host via a connection path, the optical communications apparatus comprising: a signal generator (101) at the host, configured to generate a plurality of calibration signals at a plurality of frequencies; a host interface (102) configured to transmit the calibration signals to the optical module via the connection path; a module interface (201) configured to receive the transmitted calibration signals; wherein the MZM is configured to use the calibration signals to modulate a laser light source (206) and biased to a point at which average output power is proportional to the output modulated signal; an optical detector configured to measure an average magnitude of an output of the MZM when each of the calibration signals is used to modulate the laser light source; one of a host calibration unit (103) and a module calibration unit (203), configured to determine a magnitude response of the connection path based on the measured average magnitudes and magnitudes of the respective calibration signal…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.