Pulsed coherent fiber array and method
US7502395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2006 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Aug 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/10053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pulsed coherent fiber array laser system that includes a beam generating sub-system that provides a signal pulse beam having pulses of the desired duration that is split into several fiber channels. Optical leakage between the pulses in each split beam is measured and locked to a reference beam by a phase sensing circuit and phase adjusters so that the phase of each fiber pulsed beam is aligned with the phase of the reference beam. A pulse clipper or filter is employed to remove the pulses in the fiber beams so that they do not saturate the phase sensing circuit. The beam generating sub-system can employ any suitable combination of devices to generate the signal beam and the reference beam, including continuous wave master oscillators, amplitude modulators, frequency shifters, injection seed oscillators, Q-switched lasers, reference oscillators, frequency lockers, wavelength division multiplexers, time gated switches, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.