Pulsed CO2 laser output-pulse shape and power control
US8687661B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2012 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | May 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2232
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In order to maintain a constant laser output pulse power in a RF-energized, sealed-off, diffusion cooled, pulsed, CO2 gas-discharge laser, each laser output pulse is generated by train or burst of shorter RF pulses. When the time between laser output pulses becomes short enough that the power in one pulse would be reduced by gas-discharge heating effects of a previous pulse, power in the RF pulse trains is varied by varying the duration or duty cycle of pulses in the bursts, thereby keeping output-pulse power in the laser output pulses constant. RF pulses in any burst can have a different duration for tailoring the temporal shape of a corresponding laser-output pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.