WebDec 1, 1993 · Periodically segmented waveguides (PSWs) are used to adapt the size of the guided modes in the planar lightwave circuits (PLC) [3]- [5]. A typical PSW consists of a … WebModal properties of periodically segmented waveguides (PSWs) are analyzed by using the beam-propagation method and coupled-mode theory. The modal effective indices in a PSW are shown to be equal to those of a continuous waveguide with an averaged Delta n. As a result, guided modes spread out, particularly those that are not strongly guided. The …
Optical power management using second harmonic
WebPeriodically segmented waveguides, consisting of segments of length l indiffused with a dopant to produce an index change Dn, separated by undoped regions with a repeat period L, permit flexibility in tailoring waveguide properties. It has been shown theoretically that an average index model, in which the behavior of the PSW is approximated by ... WebThis function is useful for nonlinear waveguide devices, such as difference-frequency generators, in which modes at highly disparate wavelengths interact. We report modeling, … prince lionheart 2
Periodically segmented waveguides in Ti:LiNbO3
WebPeriodically segmented planar waveguides are modeled by using the rigorous modal method of diffraction gratings. The radiation loss, effective index, and electric-field strength distribution are analyzed for different segment duty cycles. Web1832 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 11, NO. 11, NOVEMBER 1993 no “t waveguide is inherently leaky, the eigenvalues are com- plex, (7) Fig. 1. 1D periodically segmented waveguide (PSW ... WebPeriodically segmented waveguides (PSW, see Fig. 1) have attracted considerable attention recently. They were first used for second harmonic generation (SHG) in Rb: KT i PO 4 [1, 2]. Keywords Duty Cycle Second Harmonic Generation Radiation Loss Beam Propagation Method Quasi Phase Match These keywords were added by machine and not by the … please lord let me win the lottery