Active magnetic field tuning for dispersion equalization of a multi-oscillator
US5374990A · kind A · utility
3Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1993 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Apr 12, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/139
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Dispersion in a multi-oscillator cavity is equalized by processing information extracted from the laser beams within the cavity to generate an error signal representative of dispersion bias, and applying a bias control signal to the cavity in such a way as to null the error signal. The bias control signal is preferably a magnetic field applied to the gain medium of the cavity by passing a corresponding current through a coil surrounding the medium. In exemplary embodiments, the laser beams are modulated by modulating the applied magnetic field and/or the path length of the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.