Chinese Journal of Quantum Electronics, Volume. 38, Issue 1, 10(2021)

Propagation characteristics of incoherently coupled beams in low loss media

Jinli WANG*, Chunxiao ZHONG, Ximei REN, and Rong LI
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    The propagation properties of two incoherent coupled beams in lossy media are investigated. The evolution equations of amplitude, distance, phase and propagation velocity of incoherently coupled beamswith dielectric loss are derived by variational method, then the interaction potential energy and interaction force of two spatial optical solitons are obtained, and the effect of dielectric loss on soliton transmission and interaction is analyzed. It isshown that the dielectric loss slows down the phase change of the soliton, and the loss also makes the interaction of solitons decay exponentially with the propagation distance, while long-distance transmission may lead to the collapse of soliton pairs. It is also shown that the interaction between solitons has a maximum, and when the distance between solitons is greater than a certain value, the two solitons will transmit independently without interference.


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    WANG Jinli, ZHONG Chunxiao, REN Ximei, LI Rong. Propagation characteristics of incoherently coupled beams in low loss media[J]. Chinese Journal of Quantum Electronics, 2021, 38(1): 10

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    Paper Information


    Received: May. 18, 2020

    Accepted: --

    Published Online: Aug. 30, 2021

    The Author Email: Jinli WANG (



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