Results of the simulation of multichannel radiation propagation under conditions of thermal blooming are presented. The correction of nonlinear thermal distortion by means of the beam phase and amplitudephase control is considered. The results show the dependence of the correction effectiveness on the number of channels and on the precision of the reference beam phase retrieval. An additional increase in the effectiveness is possible by means of adjustment of amplification in the channels of the optical system, i.e., with the use of amplitude-phase control over the beam wavefront.
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H. Bruesselbach, Sh. Wang, M. Minden, D. C. Jones, and M. Mangir, “Power-scalable phase-compensating fiber-array transceiver for laser communications through the atmosphere,” J. Opt. Soc. Am., B 22 (2), 347–354 (2005).
A. A. Fotiadi, N. Zakharov, O. L. Antipov, and P. Megret, “All-fiber coherent combining of Er-doped amplifiers through refractive index control in Yb-doped fibers,” Opt. Lett. 34 (22), 3574–3576 (2009).
T. Y. Fan, “Laser beam combining for high-power, high-radiance sources,” IEEE J. Sel. Top. Quantum Electron. 11 (3), 567–572 (2005).
B. W. Grime, W. B. Roh, and Th. G. Alley, “Phasing of a two-channel continuous-wave master oscillatorpower amplifier by use of a fiber phase-conjugate mirror,” Opt. Lett. 30 (18), 2415–2417 (2005).
X. Fan, J. Liu, J. Liu, and J. Wu, “Experimental investigation of a seven-element hexagonal fiber coherent array,” Chin. Opt. Lett. 8 (1), 48–51 (2010).
C. Bellanger, “Coherent fiber combining by digital holography,” Opt. Lett. 33 (24), 2937–2939 (2008).
M. A. Vorontsov and S. I. Lachinova, “Laser beam projection with adaptive array of fiber collimators. I. Basic consideration for analysis,” J. Opt. Soc. Am., A 25 (8), 1949–1959 (2008).
M. A. Vorontsov and S. I. Lachinova, “Laser beam projection with adaptive array of fiber collimators. II. Analysis of atmospheric compensation efficiency,” J. Opt. Soc. Am., A 25 (8), 1960–1973 (2008).
V. A. Banakh and A. V. Falits, “Assessment of multielement beam focusing under conditions of thermal blooming,” Atmos. Ocean. Opt. 27 (3), 211–217 (2014).
V. A. Banakh and A. V. Falits, “Numerical simulation of combined beams propagation in the turbulent atmosphere in conditions of the thermal blooming,” Opt. Atmos. Okeana 26 (5), 371–380 (2013).
T. Weyrauch, M. A. Vorontsov, G. W. Carhart, L. A. Beresnev, A. P. Rostov, E. E. Polnau, and J. J. Liu, “Experimental demonstration of coherent beam combining over a 7 km propagation path,” Opt. Lett. 36 (22), 4455–4457 (2011).
M. A. Vorontsov and V. I. Shmal’gauzen, Principles of Adaptive Optics (Nauka, Moscow, 1985) [in Russian].
G. I. Marchuk, Splitting Algorithms (Nauka, Moscow, 1988 [in Russian].
F. Yu. Kanev, V. P. Lukin, N. A. Makenova, and E. I. Moisey, “New algorithm of formation of the required amplitude distribution under the phase control. Improving the efficiency of a two-mirror adaptive system,” Atmos. Ocean. Opt. 21 (4), 321–326 (2008).
F. Yu. Kanev and V. P. Lukin, Adaptive Optics. Numerical Simulation and Experiments (Publishing House of IAO SB RAS, Tomsk, 2005) [in Russian].
Original Russian Text © F.Yu. Kanev, N.A. Makenova, V.P. Lukin, O.L. Antipov, I.D. Veretekhin, 2018, published in Optika Atmosfery i Okeana.
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Kanev, F.Y., Makenova, N.A., Lukin, V.P. et al. Adaptive Correction of Thermal Distortions of Multichannel Laser Radiation. Atmos Ocean Opt 31, 238–242 (2018). https://doi.org/10.1134/S1024856018030077
- adaptive optics
- thermal blooming
- multichannel radiation
- phase conjugation
- amplitude-phase control over the beam wavefront