Ultrastable laser system based on polarization-maintaining optical fiber
US12224546B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2022 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Aug 29, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1307
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ultrastable laser system is based on a polarization-maintaining optical fiber. The ultrastable laser system comprises a laser device; acousto-optic modulators, a first beam splitter, a polarizer, an optical fiber interferometer comprising a second beam splitter, an optical fiber delay line, a third acousto-optic modulator, and a beam combiner; a beam combiner, a polarization beam splitter, photoelectric detectors, a frequency synthesizer, frequency mixers, a servo feedback circuit and a piezoelectric ceramic. The temperature interference is eliminated based on the characteristic that refractive indexes of a fast axis and a slow axis of the polarization-maintaining optical fiber differently change with a temperature, a vacuum structure can be avoided, and the ultrastable laser system has low cost, small system, simple structure and high signal stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.