Picosecond laser apparatus and methods for its operation and use
US7929579B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2010 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Jan 4, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0047
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device positioned along the optical axis of the resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.