Passively mode locked-laser and method for generating a pseudo random optical pulse train
US5488620A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1995 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Jan 5, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1022
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A passively mode-locked laser and method for generating a coherent pseudo random pulse train is disclosed. The laser comprises an optical resonant cavity that is capable of sustaining the oscillation of a plurality of resonant modes having respective phases. A saturable absorber is positioned in the resonant cavity and has an optical intensity threshold beyond which multiple mode-locked pulses with random starting times are generated in the resonant cavity and periodically emitted by the laser. A pump injects power into the resonant cavity at a level at which the optical intensity that is incident on the saturable absorber exceeds the optical intensity threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.