Time Distribution of Reflected Light Signals from Partially Coherent Light Passing Through Complex Optical Systems with Multiple Apertures
Journal of Electrical and Electronic Engineering
Volume 7, Issue 2, April 2019, Pages: 51-56
Received: Apr. 15, 2019; Published: Jun. 15, 2019
Views 196      Downloads 43
Authors
Shan Congmiao, Astronauts Research and Training Center, Beijing, China
Sun Huayan, Department of Electronic and Optical Engineering, Space Engineering University, Beijing, China
Li Pengwei, Astronauts Research and Training Center, Beijing, China
Article Tools
Follow on us
Abstract
Laser active detection technology scans and detects large target equipped with optoelectronic equipment by transmitting laser beam, converts the received reflected light signal into electrical signal, and obtains target information through various signal processing methods to achieve the goal of target detection. The laser beam output from the high power laser usually has multi-mode structure and partial coherence, and the optical reconnaissance equipment with complex optical structure is an equivalent system with multiple hard edge apertures. In the simulation of the coherent beams transmission through the multi aperture complex optical system, large matrix calculations are required in the spatial optical field computation, which consumes a lot of computation time. Furthermore, the size of the optical receiving lens is far less than the spot size after a long distance transmission, which results in the loss of optical information. To solve the problems, in this article, taking the Gauss Schell model (GSM) beam as a partially coherent light model, based on the Complex Gauss decomposition method for the hard edge diaphragm and ABCD optical transmission matrix, the recursive formula of the time series of the intensity distribution of the coherent GSM beams interference fringe field transmission through a multi aperture complex optical system is derived, and the influences of the spatial coherence of the GSM beam. The effects of the spatial coherence of GSM beams, the initial distance between coherent beams and the equivalent aperture size of complex optical systems on the time distribution of transmitted light intensity are analyzed. According to the results, the influence of the spatial coherence of the GSM beam on the spatial coherence of the beam itself is more obviously than that on the formation of two coherent GSM beam interference field. The interference fringe field spatial distribution and the aperture size are the main factors affecting the transmission of light time distribution. The conclusions obtained in this paper have important reference value for the application of partially coherent optical transmission through complex optical systems, and also provide a new idea for the target echo signal processing method of laser active detection.
Keywords
Laser Active Detection, Reflected Light Signal, Time Distribution, Gauss Schell Model Beams, Multi Apertures Optical System
To cite this article
Shan Congmiao, Sun Huayan, Li Pengwei, Time Distribution of Reflected Light Signals from Partially Coherent Light Passing Through Complex Optical Systems with Multiple Apertures, Journal of Electrical and Electronic Engineering. Vol. 7, No. 2, 2019, pp. 51-56. doi: 10.11648/j.jeee.20190702.14
References
[1]
Starikov A, Wolf E. “Coherent-mode representation of Gaussian Schell-model sources and their radiation fields,” J. Opt. Sec. Am., 1982, 76 (6), pp. 923-928.
[2]
Case R. “The multimode laser radiation as a Gaussian Schell-model beam,” J. Mod. Opt., 1991, 38 (6), pp. 1107-1115.
[3]
Friberg A. T., Turnuen J. “Imaging of Gaussian Schell-model source,” J. Opt. Soc. Am. A., 1988, 5 (5), pp. 713-720.
[4]
Wen J J, Breazeale M A. “A diffraction beam field expressed as the superposition of Gaussian beams,” J. Acoust. Soc. Am., 1988, 83 (5), pp. 1752-1756.
[5]
Ding D, Liu X. “Approximate description for Bessel, Bessel-Gauss, and Gaussian beams with finite aperture,” J. Opt. Soc. Am. A., 1999, 16 (6), pp. 1286-1293.
[6]
Vicari L, Bloisi F. “Matrix representation of axisymmetric optical systems including spatial filters,” Appl. Opt. 1989, 28 (21), pp. 4682-4686.
[7]
Bloisi F, Vicari L. “Diffraction field of a circularly symmetric beam through a sequence of apertures,” Appl. Opt. 1991, 30 (13), pp. 1595-1597.
[8]
Tanaka K, Shibukawa M, Fukumitsu O. “Diffraction of a wave beam by an aperture,” IEEE Trans. Microwave Theory Tech., 1972, MTT-20, pp. 749.
[9]
Tanaka K, Toshida K, Taguchi M. “Analytical and experimental investigation of the diffraction field of a Gaussian beam through a sequence of apertures: applicability of the beam mode expansion method,” Appl. Opt., 1988, 27 (7), pp. 1310-1312.
[10]
Lu W, Liu L R, Liu D A, and Sun J F. “Scintillation index of electromagnetic Gaussian Schell-model beams on propagation through atmospheric turbulence,” SPIE, 2007, 6709 (67091G), pp. 1-10.
[11]
Santasri B., Milo W. H., Jack E. M. and Steven T. F. “Scattering from a rough surface in presence of atmospheric turbulence,” SPIE, 2013, 8732 (87320G), pp. 1-9.
[12]
Mark F. S., Milo W. H. IV, Santasri B., and Michael A. M. “The scattering of partially coherent electromagnetic beam illumination from a statistically rough surface modeled as a perfect electrical conductor,” SPIE, 2014, 9205 (92050J), pp. 1-18.
[13]
Santasri B., Milo W. H., Jack E. M, Mark F. S., and Steven T. F.. “Examining the validity of using a Gaussian Schell Model for modeling an extended beacon on a rough perfectly reflecting surface,” SPIE, 2014, 9224 (92240L), pp. 1-11.
[14]
Cai Y. J., Lin Q., H. T. Eyyuboglu, and Y. Baykal. “Generalized tensor ABCD law for an elliptical Gaussian beam passing through an astigmatic optical system in turbulent atmosphere,” Appl phys B, 2009, 94, pp. 1-7.
[15]
Fu Q., Gao D. R., Liu Z., Chen C. Y., Lou Y., and Jiang H. L.. “Partially coherent polarized atmospheric transmission characteristics and application technology research,” SPIE, 2014, 9300 (93002A), pp. 1-8.
[16]
Lecocq C., Deshors G., Lado-Bordowsky O., et al. “Sight laser detection modeling.” SPIE, 2003, 5086, pp. 280-286.
[17]
Zhao Yanzhong, Sun Huayan, Shan Congmiao, et al.. “A new identification method aimed at optical targets using an active interference laser beam.” IEEE Photonics Technology Letters, 2014, 26 (10), pp. 1019-1022.
[18]
Shan C. M., Sun H. Y, Zhao Y. Z., and Chen J. B., “Temporal distribution characteristics of reflection light of coherent Gaussian beams passing through Cassegrain lens”. Chinese Journal of Lasers, 2017, 44 (12), pp. 1205001.
[19]
Liu Y. D., Gao C. Q., Gao M. W., et al. “Coherent-mode representation and orbital angular momentum spectrum of partially coherent beam.” Optics Communications, 2008, 281 (8), pp. 1968-1975.
[20]
Zhang H. F, Wu G. H., Guo H.. “Spectral behavior of partially coherent beam passing through an aperture.” Optics Communications, 2007, 278 (1), pp. 153-156.
[21]
Wang H., Liu D. J., Zhou Z. X., et al. “Propagation properties of radially polarized partially coherent beam in turbulent atmosphere.” Optics and Lasers in Engineering, 2011, 49 (9-10), pp. 1238-1244.
[22]
Cai Y. J., Lin Q.. “Propagation of a decentered astigmatic partially coherent beam in a turbulent atmosphere.” Optik, 2009, 120 (3), pp. 146-150.
[23]
Han Y., Wu J., Yang C. P., He W. G., and Xu G. Y.. “Propagation studying in cat-eye system for the beam affected by atmospheric turbulence,” SPIE, 2007, 6795 (67952O), pp. 1-6.
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186