FIELD: laser technology.
SUBSTANCE: method and device can be used at powerful multichannel laser installations with radiation power level higher than 1012 W. Operation of laser is based upon forming of partially coherent laser pulse. Characteristics of laser pulse are specified by design mutual coherence function. Values of the function are necessary and sufficient for optimal matching of laser-target system. Device for forming powerful laser pulse has master oscillator, system for forming space-time characteristics of laser pulse and amplifiers. Amplifiers are disposed in sequence along rising cross-section of beam to be amplified correspondingly to space-angle distribution of radiation intensity. Distribution is matched with design function of mutual coherence. High uniformity intensity distribution is provided in focus of laser.
EFFECT: simplified design; reduced sizes; improved efficiency of inversion reading; reduced cost of laser energy.
2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| APODIZATOR OF LASER BEAM | 2015 |
|
RU2587694C1 |
| PROCESS FORMING SOFT DIAPHRAGM | 1998 |
|
RU2140695C1 |
| SOFT DIAPHRAGM FOR LASERS | 1999 |
|
RU2163386C2 |
| METHOD FOR GUIDING PULSED ELECTROMAGNETIC RADIATION TO REMOTE OBJECT | 2014 |
|
RU2589763C2 |
| DEVICE FOR FORMING UNIFORM DISTRIBUTION OF LASER RADIATION ON TARGET | 2020 |
|
RU2750692C1 |
| METHOD OF INTERNAL FEEDBACK LOOP ARRANGEMENT FOR PHASE SYNCHRONIZATION OF FIBRE LASERS GRID IN SYSTEMS OF COHERENT ADDITION OF BEAMS AND DEVICE FOR IMPLEMENTATION THEREOF | 2017 |
|
RU2720263C1 |
| OPTICAL INTERFERENCE RETINOMETER | 2003 |
|
RU2253352C2 |
| METHOD FOR DETERMINING DEFORMATIONS OF WAVEFRONT OF LIGHT BEAM CAUSED BY WAVINESS OF SURFACES OF OPTICAL SYSTEM | 2018 |
|
RU2680615C1 |
| METHOD AND APPARATUS FOR FOURIER ANALYSIS OF LIQUID LIGHT-TRANSMITTING MEDIA | 2021 |
|
RU2770415C1 |
| TUNABLE OPTICAL SHAPER OF SCALABLE FLAT HOMOGENEOUS LASER BEAM | 2019 |
|
RU2725685C1 |
