We design and implement a chaotic-based system, enabling ultra-fast random bit sequence generation. The potential of this system to realize rates 160 Gb/s for 8-bit digitization 480 16-bit is demonstrated. In addition, we provide detailed insight into the interplay dynamical properties, acquisition conditions, post-processing, using simple robust procedures. employ chaotic output semiconductor laser subjected polarization-rotated feedback. show that not only dynamics affect randomness bits,...

Chaotic semiconductor lasers have been proven attractive for fast random bit generation. To follow this strategy, simple robust systems and a systematic approach determining the required dynamical properties most suitable conditions application are needed. We show that dynamics of single mode laser with polarization-rotated feedback optimal generation when characterized simultaneously by broad power spectrum low autocorrelation. observe successful also is sensitive to digitization...

We experimentally study consistency properties of a semiconductor laser in response to coherent optical drive originating from delayed feedback. The is connected short and long fiber loop, switched such that only one providing input the at time. This way, repeating exact same twice, we find consistent or inconsistent responses depending on pump parameter relate kind strong weak chaos. Moreover, are able determine sub-Lyapunov exponent, underlying properties.

Consistency refers to the property of an externally driven dynamical system respond in similar ways inputs. In a delay system, delayed feedback can be considered as external drive undelayed subsystem. We analyze degree consistency generic chaotic with by means auxiliary approach. this scheme identical copy nonlinear node is exactly same signal original, allowing us verify complete via synchronization. past, phenomenon synchronization delay-coupled systems has been widely studied using...

Consistency is a powerful concept to characterize and classify the behavior of driven dynamical systems, therefore playing an essential role for understanding information processing in by complex photonic systems. Here, we discuss two different experimental configurations semiconductor laser systems with delayed optical feedback allowing unifying view via detailed characterization comparison consistency synchronization properties. The first configuration comprises unidirectionally coupled...

We investigate the consistency properties in responses of a nonlinear delay optoelectronic intensity oscillator subject to different drives, particular, harmonic and self-generated waveforms. This system, an implementation Ikeda oscillator, is operating closed-loop configuration, exhibiting its autonomous dynamics while drive signals are additionally introduced. Applying same multiple times, we compare dynamical quantify degree among them via their correlation. Our results show that not...

Although synchronization is a well-known physical phenomenon, experimental studies of its emergence in living bacterial cells are still scarce. The difficulty generating controlled scenario to detect has limited the outcomes so far. We present realization based on holographic optical tweezers which adhered pairs self-propelled bacteria rotate plane. separation distance between determines strength hydrodynamic coupling. Despite noisy environment and autonomous dynamics bacteria, we find...

Abstract Quantitative force sensing reveals essential information for the study of biological systems. Forces on molecules, cells, and tissues uncover functioning conditions pathways. To analyze such forces, spherical particles are trapped controlled inside an optical tweezers (OT) trap. Although these well‐established sensors in biophysics, elongated probes envisioned remote reducing heat damage caused by OT. There is thus a growing demand metrology with OT using complexly shaped objects,...

Here, we investigate in detail the factors that affect randomness and possible bit rates of a random generator based on chaotic semiconductor laser: dynamical properties system, digitization conditions postprocessing original signal. Implementing proper balance, our is demonstrated to have potential for up 480 Gbit/s.

Semiconductor lasers are nowadays most prominently used in telecommunications and data communications due to their small dimensions cost-efficiency. One application of current interest is random bit sequence generation using chaotic semiconductor laser dynamics. Chaotic attractive for this, since they allow high rates the GBit/s range. At same time, as analog systems with noise, avoid shortcomings digital systems, representing real generators, rather than pseudo-random generators. Most...

While spherical particles have been widely used as probes for optical trapping, non-spherical objects are only rarely considered though they exhibit important features biocompatible trapping scenarios or complex assemblies. Here, we demonstrate the use of nonspherical nano-containers force sensing and basic building blocks Employing holographic tweezers, arbitrary nanoarchitectures optomechanically fabricated, among them dynamic waveguides permanent microconstructions.