Higher-order dispersion compensating pulse shaper via amplitude spectral filtering and nonlinear phase accumulation
US11757244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2020 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Jun 19, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of pulse shaping using spectral filtering, positive chirp, and self-phase modulation to control the accumulated higher-order phase terms of the spectral phase. This pulse shaping method has particular advantage in fiber chirped pulse amplification (FCPA) systems, where there are two effects: (1) an offsetting of the fourth order phase via nonlinear phase accumulation, allowing for a higher Strehl ratio (i.e., a cleaner pulse), higher peak power pulse and (2) enabling power scaling to higher pulse energies without the increased nonlinear phase accumulation leading to pulse breakup. This technique can be used both in a passive system with no amplification to clean up an existing pulse, and in an amplifier system to enable higher performance operation (shorter pulses, cleaner pulses, higher energy pulses).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.