Method and system using phase modulation to reduce spectral broadening
US8630036B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2010 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jul 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/10053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser system includes a seed laser operable to output a seed laser signal along an optical path and a phase modulator disposed along the optical path and operable to receive the seed laser signal. The laser system also includes a phase modulator driver coupled to the phase modulator. A drive signal from the phase modulator driver is operable to produce, as an output from the phase modulator, an unmodulated seed laser signal when the drive signal is associated with a first state and a modulated seed laser signal when the drive signal is associated with a second state. The laser system further includes a fiber amplifier disposed along the optical path and operable to receive the output of the phase modulator. A spectral bandwidth of an output of the fiber amplifier associated with the second state is less than a spectral bandwidth of the output of the fiber amplifier associated with the first state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.