Mode control of photonic crystal fiber based broadband radiation sources
US11360396B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 27, 2020 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0092
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A mode control system and method for controlling an output mode of a broadband radiation source including a photonic crystal fiber (PCF). The mode control system includes at least one detection unit configured to measure one or more parameters of radiation emitted from the broadband radiation source to generate measurement data, and a processing unit configured to evaluate mode purity of the radiation emitted from the broadband radiation source, from the measurement data. Based on the evaluation, the mode control system is configured to generate a control signal for optimization of one or more pump coupling conditions of the broadband radiation source. The one or more pump coupling conditions relate to the coupling of a pump laser beam with respect to a fiber core of the photonic crystal fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.