We present the first direct single-shot recordings of optical rogue waves by using a homemade Time Microscope having a temporal resolution of 250fs (P. Suret et al., Nature Communications 7, 13136 (2016)). In our experiments, partially coherent waves emitted by a amplified spontaneous emission light source experience nonlinear propagation in a single mode optical fibre. Experimental observation reveal the emergence of coherent structures embedded in the random waves. The probability density function of optical power is found to evolve from exponential distribution that corresponds to linear superposition of waves to heavy tailed distribution. The experiments are very well reproduced by numerical simulations of the one dimensional nonlinear Schrdiner Equation.
Pierre Suret, Rebecca El Koussaifi, Alexey Tikan, Clement Evain, Christophe Szwaj, Serge Bielawski, and Stephane Randoux, "Single-shot observation of optical rogue waves in integrable turbulence using time microscopy," Proc. SPIE 10089, Real-time Measurements, Rogue Phenomena, and Single-Shot Applications II, 1008903 (Presented at SPIE LASE: January 30, 2017; Published: 22 February 2017); https://doi.org/10.1117/12.2251518.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon