Adaptive SLM-based compensation of intermodal interference in few-mode optical fibers

Vladimir S. Lyubopytov; Valeriy Kh. Bagmanov; Albert Kh. Sultanov

doi:10.1117/12.2061427

19 September 2014 Adaptive SLM-based compensation of intermodal interference in few-mode optical fibers

Vladimir S. Lyubopytov, Valeriy Kh. Bagmanov, Albert Kh. Sultanov

Proceedings Volume 9216, Optics and Photonics for Information Processing VIII; 92160I (2014) https://doi.org/10.1117/12.2061427
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

Transmission of optical beams with phase front vorticity through relevant distances in optical fibers poses a problem of time-dependent intermodal interference with random complex coefficients. In this paper we propose a method for compensation of interference between LP-modes, propagating through the optical fiber. To implement optical-domain modal filtering, reconfigurable diffractive optical element matched with particular modes is considered. Such an element may be encoded as phase-only hologram by means of SLM. With this approach modes can be separated spatially in the compensating diffractive element far field and handled independently with corresponding complex coefficients. Efficiency of the proposed method is confirmed by computer simulation results.

Citation Download Citation

Vladimir S. Lyubopytov, Valeriy Kh. Bagmanov, and Albert Kh. Sultanov "Adaptive SLM-based compensation of intermodal interference in few-mode optical fibers", Proc. SPIE 9216, Optics and Photonics for Information Processing VIII, 92160I (19 September 2014); https://doi.org/10.1117/12.2061427

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