(19) 16 * << * >> * Русский * English * Содержание * Все выпуски

 PDF, 589 kB

Страницы: 88-95.

Язык статьи: Английский.

Аннотация:
Laser light modes are beams in whose cross-section the complex amplitude is described by eigenfunctions of the operator of light propagation in the waveguide medium. The fundamental properties of modes are their orthogonality and their ability to retain their structure during propagation for example in a lenslike medium, in free space or a Fourier stage. Novel Diffractive Optical Elements (DOEs) of MODAN-type [1] open up new promising potentialities of solving the tasks of generation, transformation, superposition and subsequent separation again of different laser modes. Now we present new results obtained by synthesis and investigation of beams consisting of more than one twodimensional Gaussian laser modes with the same value of propagation constant (invariant multimode beams) formed by DOEs. The exploitation of these phenomena could enhance the fiber optical system transfer capacity without pulse enlargement.

Citation:
Pavelyev VS, Duparré M, Luedge B, Soifer VA, Kowarschik R, Golovashkin DL. Invariant laser beams - fundamental properties and their investigation by computer simulation and optical experiment. Computer Optics 1999; 19: 88 - 95.

Литература:

1. V.A. Soifer, M.A. Golub, “Laser Beam Mode Selection by Computer Generated Holograms”, CRC Press, 1994.
2. V.S. Pavelyev, V.A. Soifer, M. Duparré, R. Kowarschik,B. Luedge & B. Kley, “Iterative Calculation, Manufacture and Investigation of DOE Forming Unimodal Complex Distribution”, Optics and Lasers in Engineering 29, pp 269-279, 1998.
3. M. Duparré, V. Pavelyev, B. Luedge, B. Kley, V. Soifer, R. Kowarschik, “Generation, Superposition And Separation Of GaussHermite-Modes By Means Of DOEs”, Proceedings SPIE 3291, pp 104-114, 1998.
4. M.J. Adams, “An introduction to optical waveguides”, John Wiley and Sons, 1981.
5. M.A. Bakharev, V.V. Kotlyar, V.S. Pavelyev, V.A. Soifer, S.N. Khonina, “Effective excitation of ideal gradient waveguide mode packages with pregiven phase velocities”, Computer Optics 17, pp 21-24, 1997.
6. H.G. Unger , “Planar optical waveguides and fibers”, Oxford, New York, 1977.
7. Yariv, “Optical electronics”, Holt, Rinehart and Winston, New York, 1985.
8. G.A. Korn, T.A. Korn, “Mathematical Handbook”, McGraw-Hill Book Company, 1968.
9. L.L. Doskolovich, M.A. Golub, N.L. Kazanskiy, A.G. Khramov, V.S. Pavelyev, P.G. Seraphimovich, V.A. Soifer, S.G. Volotovskiy, “Software on diffractive optics and computer generated holograms”, Proceedings SPIE 2363, pp 278-284, 1995.
10. J.R. Fienup, “ Phase retrieval algorithms: a comparison”, Applied Optics 21, pp 2758-2769, 1982.
11. Y. Fainman, F. Xu, R. Tyan, P.C. Sun, J.E. Ford, A. Krishnamoorthy, A. Scherer, “Multifunctional Diffractive Optics for Optoelectronics System Packaging”, Proceedings SPIE 3348, pp 152-162, 1998.
12. J.T. Chang, D.C. Su, Y.T. Huang, Applied Optics 33, pp 8142-8145, 1994.
13. V.I. Bobrinev, J.-Y. Son, H.-W. Jeon, “Direct transmission of images along an optical fiber with the aid of spectral image encoding”, Quantum Electronics 22, pp 1034-1036, 1995.
14. H. Damman, “Color separation gratings”, Applied Optics 17, pp 2273-2279, 1978.
15. L.L. Doskolovich, “Calculation of diffractive optical elements for separation and focusing of the light with different wavelength”, Computer Optics 18, pp 16-24, 1998
16. V.V. Kotlyar, I.V. Nikolsky, V.A. Soifer, “An algorithm for calculating multichannel formers of Gaussian modes”, Optik 98, pp 26-30, 1994.
17. C.Y. Lu, H.Z. Liao, C.K. Lee, J.S. Wang, “Energy control by linking individual patterns to selfrepeating diffractive optical elements”, Applied Optics 36, No. 20, 1997.

---

© 2009, IPSI RAS
Россия, 443001, Самара, ул. Молодогвардейская, 151; электронная почта: journal@computeroptics.ru; тел: +7 (846) 242-41-24 (ответственный секретарь), +7 (846) 332-56-22 (технический редактор), факс: +7 (846) 332-56-20