Annihilation of photorefractive solitons

Abstract

We investigate experimentally the interaction of two-dimensional solitary beams in photorefractive strontium barium niobate crystal. We show that simultaneous collision of many solitons can result in complete annihilation of some of them. This effect depends on the relative phases of the solitons and may be useful for application in the formation of multiport waveguide junctions.

Optical Spatial Solitons and Their Interactions: Universality and Diversity

“…Fission (breakup) has also been observed with photorefractive solitons (57) and predicted to occur with quadratic solitons as well (59). Annihilation of solitons upon collision occurred when three solitons collided and only two emerged from the collision process (60).…”

Dissipative solitons

“…agreement with theory Example: Figure 48 6. R 1 , R 2 Extended photo refractive media Figure 49(a) [250,[297][298][299][300][301][302][303][304][305][306][307][308][309][310][311][312][313][314] …”

Ultraweak long-range interactions of solitons observed over astronomical distances

“…[13][14][15][16] Optical solitons have been shown to attract, repel, breakup, merge, orbit each-other or even annihilate. 5,[17][18][19][20][21] As in various other media, soliton interactions can be either shortrange, occurring when the tails of neighbouring solitons overlap, 6,17,22,23 or long range, through a coupling with a non-local response, be it optical radiation, charge carriers, or thermal waves. [24][25][26][27] The weakest soliton interactions reported are long range, 24,25 but their observation is typically limited by the duration or propagation length over which the solitons can be maintained.…”