Download or read book Study of Limiting Factors and Methods of Optical Phase Conjugation by Stimulated Brillouin Scattering written by Igorʹ Yu Anikeev and published by . This book was released on 2001 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of phase conjugation by stimulated Brillouin scattering is presented with emphasis on the limiting factors, such as aperture and polarization losses, spatial coherence and saturation of the incident wave on the quality of phase conjugation, as well as the application of stimulated Brillouin scattering to loop phase-cojugated mirror and intracavity-SBS-cell-phase-conjugated oscillator.

Download or read book Stimulated Brillouin Scattering written by M J Damzen and published by CRC Press. This book was released on 2003-09-01 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stimulated Brillouin scattering (SBS) is the most important example of a stimulated scattering process-light scattering that occurs when the intensity of the light field itself affects the propagating medium. A phenomenon that has been known of for some 35 years in solid state laser research, it has recently become relevant in the optical fiber ind

Download or read book Limitations to the Quality of Optical Phase Conjugation by Stimulated Brillouin Scattering written by Thomas Richard Moore and published by . This book was released on 1993 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Phase Conjugation by Stimulated Brillouin Scattering written by Walter Andreas Schroeder and published by . This book was released on 1987 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Limitations to the Quality of Optical Phase Conjugation by Stimulated Brillouin Scattering written by Thomas Richard Moore and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fidelity of Optical Phase Conjugation Using Stimulated Brillouin Scattering written by Vladimyros Devrelis and published by . This book was released on 1997 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Study of Stimulated Brillouin Scattering in Open Cells and Multimode Optical Fibres written by Allan Chi-Lun Wong and published by . This book was released on 2005 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study of the stimulated Brillouin scattering (SBS) was carried out by performing optical phase conjugation in open cells and multimode optical fibres using a Q-switched, pulsed Nd:YAG laser. Experiments were done with test tubes that contained two SBS liquids - Fluorinert and Acetone, and multimode optical fibres. The three fundamental parameters of SBS: the threshhold energy, reflectivity and phase conjugate fidelity were characterised and analysed. In addition, the temporal behaviour of Stokes beam, phase correction, optical beakdown, and pulse compression were investigated. --p. vii.

Download or read book An Experimental Study of Phase Conjugation Via Stimulated Brillouin Scattering Applied to a High Power Nd YAG Oscillator written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Developments in Optical Phase Conjugation written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this review two major areas of investigation in optical phase conjugation are discussed: stimulated Brillouin scattering and dynamic effects in photorefractive media. 5 refs., 10 figs.

Download or read book Phase Conjugate Fidelity of Focused Stimulated Brillouin Scattering written by Lee Paul Schelonka and published by . This book was released on 1988 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first measurements of the effect of the focal intensity on the fidelity of phase conjugation in focused stimulated Brillouin scattering (SBS) are reported. Regardless of the strength of aberration, laser beams with focal intensities above 5 times the SBS threshold were conjugated accurately. As the focal intensity declined below this value, the phase conjugate fidelity declined. The maximum correctable aberration strength was that which reduced the focal intensity to near the SBS threshold. Higher laser powers corrected stronger aberrations. The pump laser was a single axial mode, tripled, Q-switched Neodymium:YAG, with a 6 nm pulse-width, operating at 355 nm. A computerized far-field image analysis system directly measured the focal intensity reduction due to aberrations. The focal intensity of the brightest far-field spot controlled both the reflectivity and the fidelity. A pair of laminar airflow, hot-wire array aberrators provided continuously variable, nearly sinusoidal phase modulation in the transverse axes. Lateral shearing interferometry and energy in the bucket measurements gave the Strehl ratio of the backscattered (reconstructed) beam, and hence the phase conjugate fidelity. A phenomenoligical theory for the phase conjugate fidelity of focused SBS was developed using resonator boundary conditions and a Gauss-Hermite mode decomposition. Analytical solutions for the case of no pump depletion were in qualitative agreement with the data. Keywords: Theses; Stimulated Brillouin scattering; Optical phase conjugation; Phase reconstruction; Nonlinear optics. (JHD).

Download or read book A Study of Stimulated Brillouin Scattering and Its Application to Phase Conjugate Oscillators written by Martin Victor O'Connor and published by . This book was released on 1997 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of stimulated Brillouin scattering and its use for correcting phase aberrations in laser oscillators.

Download or read book Stimulated Brillouin Scattering Phase Conjugation written by Kyunam Choi and published by . This book was released on 1988 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Phase Conjugation and Instabilities written by and published by . This book was released on 1983 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review written by and published by . This book was released on 1988 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Theoretical Investigation of Stimulated Brillouin Scattering in Optical Fibers and Their Applications written by Daisy Williams and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1920, Leon Brillouin discovered a new kind of light scattering --Brillouin scattering --which occurs as a result of the interaction of light with a transparent material's temporal periodic variations in density and refractive index. Many advances have since been made in the study of Brillouin scattering, in particular in the field of fiber optics. An in-depth investigation of Brillouin scattering in optical fibers has been carried out in this thesis, and the theory of stimulated Brillouin scattering (SBS) and combined Brillouin gain and loss has been extended. Additionally, several important applications of SBS have been found and applied to current technologies. Several mathematical models of the pump-probe interaction undergoing SBS in the steady-state regime have emerged in recent years. Attempts have been made to find analytical solutions of this system of equations, however, previously obtained solutions are numerical with analytical portions and, therefore, qualify as hybrid solutions. Though the analytical portions provide useful information about intensity distributions along the fiber, they fall short of describing the spectral characteristics of the Brillouin amplification and the lack of analytical expressions for Brillouin spectra substantially limits the utility of the hybrid solutions for applications in spectral measurement techniques. In this thesis, a highly accurate, fully analytic solution for the pump wave and the Stokes wave in Brillouin amplification in optical fibers is given. It is experimentally confirmed that the reported analytic solution can account for spectral distortion and pump depletion in the parameter space that is relevant to Brillouin fiber sensor applications. The analytic solution provides a valid characterization of Brillouin amplification in both the low and high nonlinearity regime, for short fiber lengths. Additionally, a 3D parametric model of Brillouin amplification is proposed, which reflects the effects of input pump and Stokes powers on the level of pump wave depletion in the fiber, and acts as a classification tool to describe the level of similarity between various Brillouin amplification processes in optical fibers. At present, there exists a multitude of electro-optic modulators (EOM), which are used to modulate the amplitude, frequency, phase and polarization of a beam of light. Among these modulators, phase modulation provides the highest quality of transmitted signal. As such, an improved method of phase-modulation, based on the principles of stimulated Brillouin scattering, as well as an optical phase-modulator and optical phase network employing the same, has been developed. Due to its robustness, low threshold power, narrow spectrum and simplicity of operation, stimulated Brillouin scattering (SBS) has become a favourable underlying mechanism in fiber-based devices used for both sensing and telecommunication applications. Since birefringence is a detrimental effect for both, it is important to devise a comprehensive characterization of the SBS process in the presence of birefringence in an optical fiber. In this thesis, the most general model of elliptical birefringence in an optical fiber has been developed for a steady-state and transient stimulated Brillouin scattering (SBS) interaction, as well as the combined Brillouin gain and loss regime. The impact of the elliptical birefringence is to induce a Brillouin frequency shift and distort the Brillouin spectrum --which varies with different light polarizations and pulse widths. The model investigates the effects of birefringence and the corresponding evolution of spectral distortion effects along the fiber, and proposes regimes that are more favourable for sensing applications related to SBS --providing a valuable prediction tool for distributed sensing applications. In recent years, photonic computing has received considerable attention due to its numerous applications, such as high-speed optical signal processing, which would yield much faster computing times and higher bandwidths. For this reason, optical logic has been the focus of many research efforts and several schemes to improve conventional logic gates have been proposed. In view of this, a combined Brillouin gain and loss process has been proposed in a polarization maintaining optical fiber to realize all-Optical NAND/NOT/AND/OR logic gates in the frequency domain. A model describing the interaction of a Stokes, anti-Stokes and a pump wave, and two acoustic waves inside a fiber, ranging in length from 350m-2300m, was used to theoretically model the gates. Through the optimization of the pump depletion and gain saturation in the combined gain and loss process, switching contrasts of 20-83% have been simulated for different configurations.

Download or read book Transient Phase Conjugation Using Stimulated Brillouin Scattering written by Shahraam Afshaarvahid and published by . This book was released on 2001 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Develops a one and three dimensional transient model of Stimulated Brillouin Scattering to investigate the transient regime of Stimulated Brillouin Scattering and recognize different transient phenomena that affect its performance.

Download or read book Brillouin Scattering Part 2 written by and published by Academic Press. This book was released on 2022-08-27 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brillouin Scattering, Part Two, Volume 110 in the Semiconductors and Semimetal series, marks the centenary of Leon Brillouin's seminal 1922 paper which provided a detailed theory on the effect that now bears his name. Sections in this new release include Optical Fiber Sensors Based on Stimulated Brillouin scattering, Brillouin-based RF frequency sources, SBS for Microwave Photonics (MWP), Engineerable Brillouin processes for integrated photonics, SBS in optical communication systems - the good, the bad and the ugly, Slow light, dynamic gratings and light storage, Non-reciprocity in Brillouin scattering, Electromechanical Brillouin Scattering, and Brillouin light scattering for studying mechanics of biological systems. Stimulated Brillouin Scattering (SBS) is the strongest third order nonlinearity and plays an important role in contemporary science and applications, particularly lasers, communications, fiber optics and basic physics. This volume provides different perspectives on current technological contexts of SBS in a range of different application areas, including sensing, communications, radar, imaging and information storage. - Presented by the leading researchers in the field - Covers both scientific and technological perspectives - Provides different perspectives on current technological contexts of SBS in a range of different application areas, including sensing, communications, radar, imaging and information storage