Photonic integrated circuit incorporating a bandgap temperature sensor
US9513437B2 · kind B2 · utility
3Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2015 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Nov 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device that includes means for thermal stabilization and control is described. The optical device can be a ring resonator, or another device that requires accurate control of the phase of the optical signal. In an example involving an optical resonator, a thermal stabilization system includes a temperature sensor, a control circuit, and a heater local to the resonator. The temperature sensor can be a bandgap temperature sensor formed of a pair of matched p/n junctions biased in operation at different junction currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.