{"id":131027,"date":"1996-01-01T00:00:00","date_gmt":"1996-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/study-of-two-laser-models-mode-decomposition-of-the-electric-field-in-a-raman-laser-response-of-a-modulated-co2-laser-to-a-loss-perturbation-at-half-the-modulation-frequency\/"},"modified":"1996-01-01T00:00:00","modified_gmt":"1996-01-01T00:00:00","slug":"study-of-two-laser-models-mode-decomposition-of-the-electric-field-in-a-raman-laser-response-of-a-modulated-co2-laser-to-a-loss-perturbation-at-half-the-modulation-frequency","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/study-of-two-laser-models-mode-decomposition-of-the-electric-field-in-a-raman-laser-response-of-a-modulated-co2-laser-to-a-loss-perturbation-at-half-the-modulation-frequency\/","title":{"rendered":"Study of two laser models: mode decomposition of the electric field in a raman laser. response of a modulated co2 laser to a loss perturbation at half the modulation frequency."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jordi Cortit Subira <\/strong><\/h2>\n<p>En la primera parte se desarrollan 3 modelos de laser raman que tengan en cuenta el perfil gausiano de los laseres de bombeo y generado: se asume que el laser solo excita 1) un solo modo gausiano. 2) muchos modos gausianos pero ningun otro tipo de modos. 3) el laser excita los modos tem00, tem01 y tem10. Este estudio esta orientado a describir los comportamientos dinamicos observados hace algunos a\u00f1os por el grupo de r. Harrison, en edimburgo. Los resultados mas importantes son: el modelo tradicional de ondas planas es un caso particular del modelo 1) las inestabilidades de baja frecuencia observadas experimentalmente pueden ser debidas tanto (no hay resultados experimentales concluyentes) a una desestabilizacion mono modo del modo gausiano como a un batido entre el modo gausiano y los modos tem01 y tem10 el limite de campo uniforme tan usado en la literatura es valido incluso para valores de los parametros que no satisfacen las condiciones de este limite.  en la segunda parte se estudia un sistema dinamico no lineal particular que exhibe una cascada subarmonica de doblamientos de periodos al caos: un laser de co2 con perdidas moduladas. Estudiamos el efecto de introducir una perturbacion a la frecuencia (resonante) igual a la mitad de la de modulacion. Se muestra que por debajo del punto de bifurcacion puede haber \u00absqueezing\u00bb clasico, que lo que define como factor de ganancia a la frecuencia mitad en funcion de la amplitud de la perturbacion decrece linealmente en escala log-log y que hay buen acuerdo entre la teoria y los experimentos.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Study of two laser models: mode decomposition of the electric field in a raman laser. response of a modulated co2 laser to a loss perturbation at half the modulation frequency.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Study of two laser models: mode decomposition of the electric field in a raman laser. response of a modulated co2 laser to a loss perturbation at half the modulation frequency. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jordi Cortit Subira <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1996<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Ramon Corbalan Yuste<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Ramon Vilaseca Alavedra <\/li>\n<li>Francisco Gonzalez Fernandez (vocal)<\/li>\n<li>Gaspar Orriols  Tubella (vocal)<\/li>\n<li>Franco Prati (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jordi Cortit Subira En la primera parte se desarrollan 3 modelos de laser raman que tengan en [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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