نتایج جستجو برای: stimulated brillouin scattering
تعداد نتایج: 222659 فیلتر نتایج به سال:
We numerically demonstrate that Lithium Niobate on Insulator (LNOI) waveguides may support confined short-wavelength surface acoustic waves interact strongly with optical fields through backward stimulated Brillouin scattering in both $Z$ and $X$-cut orientation. conduct fully anisotropic simulations consider not only moving boundary photoelastic forces, but also roto-optic forces for the inter...
The polarization-related properties of stimulated Brillouin scattering (SBS) processes in long, randomly birefringent, standard optical fibers are examined. Evolution equations for the pump and signal waves, in the presence of both birefringence and SBS, are provided in Jones and Stokes spaces. It is shown that in the undepleted pump regime, the amplification of the SBS signal wave is equivalen...
The growth of optical radiation, scattered transverse to the pump axis by stimulated Brillouin scattering (SBS) in optical windows, is considered. Basic equations are presented, and an analytic expression that determines the parasitic buildup time is derived for a transverse SBS geometry. Losses suffered by the scattered optical radiation are included in a bulk-loss term. Calculations are perfo...
The energy transfer by stimulated Brillouin backscatter from a long pump pulse (15 ps) to a short seed pulse (1 ps) has been investigated in a proof-of-principle demonstration experiment. The two pulses were both amplified in different beamlines of a Nd:glass laser system, had a central wavelength of 1054 nm and a spectral bandwidth of 2 nm, and crossed each other in an underdense plasma in a c...
An approach to evolving the photonics-based real-time Fourier transform or microwave frequency measurement system into a time–frequency analysis (TFA) is proposed by adding new dimension system. Combining above with stimulated Brillouin scattering (SBS)-assisted frequency-to-time mapping, two TFA links, namely parallel SBS link and time-division link, are proposed. The can be utilized perform o...
A complete linear model for Raman and Brillouin side scattering is analyzed with infinite finite boundary conditions. Analytic formulas of absolute thresholds convective gains scatterings are derived when assumed. Finite beam width introduces conditions to the scattering, which could influence both gains. Using these models, we have evaluated importance stimulated at ignition conditions, includ...
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