Apparatus and method for generating controlled-linewidth laser-seed-signals for high-powered fiber-laser amplifier systems
US7539231B1 · kind B1 · utility
62Cited by
5References
26Claims
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Key dates
| Filing date | Jul 17, 2006 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Nov 16, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/03
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus and method for generating controlled-linewidth laser-seed-signals for high-powered fiber-laser amplifier systems. In some embodiments, the natural chirp (frequency change of laser light over a short start-up time) of a DBR laser diode when driven by pulsed current is used to broaden the linewidth of the laser output, while adjusting the peak current and/or the pulse duration to obtain the desired linewidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.