<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2008000500011</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Encadenamiento por inyección óptica de un láser DFB con la dispersión de brillouin]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro Muñoz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Spirin]]></surname>
<given-names><![CDATA[V.V.]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Centro de Investigación Científica y de Educación Superior de Ensenada  ]]></institution>
<addr-line><![CDATA[Ensenada B.C.]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2008</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2008</year>
</pub-date>
<volume>54</volume>
<numero>5</numero>
<fpage>400</fpage>
<lpage>406</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2008000500011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2008000500011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2008000500011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Reportamos configuraciones nuevas de encadenamiento por inyección óptica (Optical Injection Locking, OIL) para generar una señal de Stokes estable en frecuencia e intensidad sin la necesidad de generadores de mieroondas ni moduladores electro-ópticos. La primera configuración está basada en el OIL de un láser DFB con la radiación de un láser de Brillouin con cavidad en anillo y la segunda en el auto-encadenamiento con la amplificación de Brillouin. Comparando los niveles de ruido en ambas configuraciones encontramos que la segunda entrega una señal de Stokes más estable en intensidad y en frecuencia. Estas configuraciones pueden ser utilizadas ventajosamente en la generación de la señales de sonda de Stokes en sensores distribuidos de Brillouin de fibra óptica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[We reported novel optieal injection locking (OIL) configurations to generate a frequency and intensity stable Stokes signal without microwave generator and optic modulator. The first configuration based on OIL of DFB laser on Brillouin fiber ring laser radiation and second one on self-injection locking on Brillouin amplified radiation. Comparing the noise level of both configurations we found that second provides significantly more intensity and frequency stable Stokes signal. These configurations can advantageously be utilized in probe Stokes signal generation for distributed fiber optical Brillouin sensing.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Encadenamiento por inyección]]></kwd>
<kwd lng="es"><![CDATA[dispersión de Brillouin]]></kwd>
<kwd lng="es"><![CDATA[sensores distribuidos de fibra óptica]]></kwd>
<kwd lng="en"><![CDATA[Injection-locking]]></kwd>
<kwd lng="en"><![CDATA[Brillouin scattering]]></kwd>
<kwd lng="en"><![CDATA[distributed fiber optical sensor]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Instrumentaci&oacute;n</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Encadenamiento por inyecci&oacute;n &oacute;ptica de un l&aacute;ser DFB con la dispersi&oacute;n de brillouin</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>M. Castro Mu&ntilde;oz y V.V. Spirin</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Centro de Investigaci&oacute;n Cient&iacute;fica y de Educaci&oacute;n Superior de Ensenada (CICESE), km 107 carretera Tijuana&#150;Ensenada, Ensenada, B.C. M&eacute;xico, Tel (646) 175&#150;05&#150;54 Ext. 25328,</i> e&#150;mail: <a href="mailto:castrom@cicese.mx">castrom@cicese.mx</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 14 de diciembre de 2007    <br> Aceptado el 29 de julio de 2008</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">Reportamos configuraciones nuevas de encadenamiento por inyecci&oacute;n &oacute;ptica <i>(Optical Injection Locking, </i>OIL) para generar una se&ntilde;al de <i>Stokes </i>estable en frecuencia e intensidad sin la necesidad de generadores de mieroondas ni moduladores electro&#150;&oacute;pticos. La primera configuraci&oacute;n est&aacute; basada en el OIL de un l&aacute;ser DFB con la radiaci&oacute;n de un l&aacute;ser de Brillouin con cavidad en anillo y la segunda en el auto&#150;encadenamiento con la amplificaci&oacute;n de Brillouin. Comparando los niveles de ruido en ambas configuraciones encontramos que la segunda entrega una se&ntilde;al de <i>Stokes </i>m&aacute;s estable en intensidad y en frecuencia. Estas configuraciones pueden ser utilizadas ventajosamente en la generaci&oacute;n de la se&ntilde;ales de sonda de <i>Stokes </i>en sensores distribuidos de Brillouin de fibra &oacute;ptica.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Encadenamiento por inyecci&oacute;n; dispersi&oacute;n de Brillouin; sensores distribuidos de fibra &oacute;ptica.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">We reported novel optieal injection locking (OIL) configurations to generate a frequency and intensity stable Stokes signal without microwave generator and optic modulator. The first configuration based on OIL of DFB laser on Brillouin fiber ring laser radiation and second one on self&#150;injection locking on Brillouin amplified radiation. Comparing the noise level of both configurations we found that second provides significantly more intensity and frequency stable Stokes signal. These configurations can advantageously be utilized in probe Stokes signal generation for distributed fiber optical Brillouin sensing.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Injection&#150;locking; Brillouin scattering; distributed fiber optical sensor.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 05.45.Xt; 42.5542.65.Es; 42.68.Wt</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v54n5/v54n5a11.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Agradecimientos</b></font></p>     <p align="justify"><font face="verdana" size="2">Agradecemos el apoyo del CONACYT a trav&eacute;s del Proyecto 45919 y de SEMARNAT a trav&eacute;s del Proyecto 23770. Marcial Castro Mu&ntilde;oz agradece la beca de doctorado 190045 otorgada por el CONACYT.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. A.E. Siegman, <i>Lasers, </i>Mill Valley, CA (Univ. Sci. 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