Pulsed fiber laser
US7764719B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2008 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Jan 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/03
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber laser system includes a master oscillator configured to generate linear polarized infrared laser radiation with wavelengths of 1015-1085 nm, pulses with durations of 100 ps to 10 ns, pulse train repetition rates of 1 kHz to 10 MHz, spectral bandwidth less than 0.5 nm, and a predominately single spatial mode and a polarization-maintaining optical isolator optically coupled to the master oscillator. The fiber laser system also includes a fiber amplifier system optically coupled to the optical isolator and including a power amplifier configured to amplify the laser radiation transmitted through the optical isolator. The power amplifier includes a polarization-maintaining, large-mode-area, multiple-clad Yb-doped gain fiber having a core, an inner cladding, and at least an outer cladding, one or more diode pump lasers emitting pump light of a nominal wavelength of 976 nm, and a pump coupler configured to couple the pump light into the gain fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.