FIELD: physics.
SUBSTANCE: apparatus for coherent laser beam combining includes a laser with a fibre amplifier and a system of splitters which splits the laser beam into N+1 optical channels, from which one reference channel and N amplifier channels are selected. The apparatus also has a piezoceramic phase modulator of the reference channel, a harmonic electric oscillation generator connected the phase modulator of the reference channel to form an electrical positive feedback and operating at natural resonance frequency of the piezoceramic modulator, N phase-shift piezoceramic elements of operating channels, a system for combining N laser beams, which includes N collimators of operating channels connected to the N phase-shift piezoceramic elements of operating channels. Furthermore, the apparatus has a collimator with a reference channel telescope, connected to the piezoceramic phase modulator of the reference channel, a divider plate, N photodetectors on which control optical signals of interference of the reference and operating channels fall, N synchronous detection units which include a key synchronous detector, the synchronisation input of which is connected to the harmonic electric oscillation generator and the signal input is connected to the output of the N-th control photodetector. The output of the key synchronous detector is connected to the N-th phase-shift piezoceramic element of the operating channel to form an electrical negative feedback.
EFFECT: faster operation of the system.
13 cl, 5 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR COHERENT LASER RADIATION IN MULTICHANNEL CONTINUOUS LASERS | 2015 |
|
RU2582300C1 |
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 |
METHOD OF FORMING A LASER BEAM WITH ARBITRARILY GIVEN INTENSITY DISTRIBUTION IN A FAR OPTICAL FIELD AND A DEVICE FOR ITS IMPLEMENTATION | 2019 |
|
RU2716887C1 |
LASER INTERFEROMETER | 2016 |
|
RU2645005C1 |
METHOD FOR OBTAINING A SCALAR VORTEX BEAM AND DEVICE FOR ITS IMPLEMENTATION | 2016 |
|
RU2648975C2 |
METHOD FOR AMPLITUDE, PHASE AND POLARIZATION CONTROL IN PHASED ARRAY OF FIBRE AMPLIFIERS AND CONTROL OF DISTRIBUTED STATE OF INTENSITY, WAVE FRONT AND POLARIZATION OF SYNTHESIZED BEAM IN THE FAR OPTICAL FIELD AND DEVICE FOR ITS IMPLEMENTATION | 2023 |
|
RU2804262C1 |
METHOD OF AMPLIFYING LASER RADIATION AND APPARATUS FOR REALISING SAID METHOD | 2010 |
|
RU2470334C2 |
METHOD OF FORMATION OF COHERENT OPTICAL SIGNAL BY SUMMATION OF RADIATION BEAMS OF N LASERS IN VERTEX OF CONICAL SURFACE AND TRANSMITTER OF COHERENT OPTICAL RADIATION REALIZING THIS METHOD | 1992 |
|
RU2109384C1 |
COHERENT LASER TARGET LOCATOR | 2014 |
|
RU2563312C1 |
COHERENT LASER RADAR FOR SEA-LAUNCHED MISSILE | 2014 |
|
RU2565821C1 |
Authors
Dates
2013-07-27—Published
2012-03-11—Filed