Ultralow noise optical clock for high speed sampling applications
US6735229B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2003 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | May 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Methods and systems for using a laser type clock to produce a train of ultra-stable optical pulses. The methods and systems include generating an approximately 10 GHz ultralow noise pulse train from a harmonically modelocked laser having an intracavity Fabry-Perot etalon filter from a semiconductor lasers such as ring lasers, and the like. System output can have residual phase modulation(PM) noise values of approximately 18 fs and amplitude modulation(AM) noise values of approximately 0.05% RMS, and residual phase modulation(PM) noise values of approximately 94 fs and amplitude modulation(AM) noise values of approximately 0.05% RMS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.