Time division multiplexing closed loop feedback thermal control method and system
US10852483B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Aug 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure discloses a time division multiplexing closed loop feedback thermal control method and system, and the method is applicable to a system comprising k integrated photonic devices. The method comprises: acquiring, by a temperature control unit, refractive index information of an i-th integrated photonic device in a time division multiplexing manner, refractive indexes of the integrated photonic devices varying with temperature, 1≤i≤k; and adjusting, by the temperature control unit, a temperature of the i-th integrated photonic device when the refractive index of the i-th integrated photonic device is not equal to a desired value to control the refractive index of the i-th integrated photonic device to be maintained at the desired value. When the integrated chip includes multiple photonic devices, a temperature control unit is shared in a time division multiplexing manner, which reduces the overall power consumption of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.