<?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>S0035-001X2009000100010</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Láser de fibra con emisión dual seleccionable usando rejillas de bragg de fibra y fibra dopada con erbio]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durán-Sánchez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Rebollar]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kuzin]]></surname>
<given-names><![CDATA[E.A.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ibarra-Escamilla]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bello-Jiménez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Rosas]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Beltrán Pérez]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Tecnológica de Puebla Centro de innovacion tecnológica ]]></institution>
<addr-line><![CDATA[Puebla Pue]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Instituto Nacional de Astrofísica óptica y Electrónica (INAOE)  ]]></institution>
<addr-line><![CDATA[Puebla ]]></addr-line>
<country>México</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla Facultad de Ciencias Físico Matemáticas ]]></institution>
<addr-line><![CDATA[Puebla Pue]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2009</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2009</year>
</pub-date>
<volume>55</volume>
<numero>1</numero>
<fpage>73</fpage>
<lpage>76</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2009000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2009000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2009000100010&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Un laser de fibra con emisión de longitud de onda dual seleccionable es propuesto y demostrado experimentalmente basado en rejillas de Bragg de fibra usando una cavidad lineal, ajustando el traslape de las rejillas de Bragg y el ancho de banda homogéneo de línea de ganancia de la fibra dopada con erbio (EDF, Erbium-doped fiber). La sola o dual longitud de onda es obtenida igualando la longitud de onda de las rejillas de Bragg.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[A switchable dual wavelength fiber laser is proposed and experimentally demonstrated based on fiber Bragg gratings by using a linear cavity, adjusting the overlap on the Bragg gratings and the homogéneous gain broadening of the erbium doped fiber (EDF). The single or dual lasing wavelength can be also obtained by matching the wavelength of the Bragg gratings.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Láseres de fibra]]></kwd>
<kwd lng="es"><![CDATA[láser de fibra seleccionable]]></kwd>
<kwd lng="es"><![CDATA[amplificadores de fibra dopada con erbio]]></kwd>
<kwd lng="es"><![CDATA[rejillas de Bragg]]></kwd>
<kwd lng="en"><![CDATA[Fiber lasers]]></kwd>
<kwd lng="en"><![CDATA[switchable fiber laser]]></kwd>
<kwd lng="en"><![CDATA[erbium doped fiber amplifiers (EDFAs)]]></kwd>
<kwd lng="en"><![CDATA[fiber Bragg gratings]]></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>L&aacute;ser de fibra con emisi&oacute;n dual seleccionable usando rejillas de bragg de fibra y fibra dopada con erbio</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>M. Dur&aacute;n&#150;S&aacute;nchez&ordf;, J.L. Hern&aacute;ndez Rebollar&ordf;, E.A. Kuzin<sup>b</sup>, B. Ibarra&#150;Escamilla<sup>b</sup>, M. Bello&#150;Jim&eacute;nez<sup>b</sup>, A. Flores&#150;Rosas<sup>b</sup> G. Beltr&aacute;n P&eacute;rez<sup>c</sup></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>&ordf; Centro de innovacion tecnol&oacute;gica, Universidad Tecnol&oacute;gica de Puebla, Antiguo Camino a la resurrecci&oacute;n No. 1002&#150;A, Zona Industrial, Puebla, Pue., M&eacute;xico, 72300, </i>e&#150;mail: <a href="mailto:jhernadez@citec.utpuebla.edu.mx">jhernadez@citec.utpuebla.edu.mx</a></font></p>     <p align="justify"><font face="verdana" size="2"> <i><sup>b </sup>Instituto Nacional de Astrof&iacute;sica &oacute;ptica y Electr&oacute;nica (INAOE), Luis Enrique Erro No. 1 Tonanzintla, Puebla, 72000, M&eacute;xico, </i>e&#150;mail: <a href="mailto:manueld@inaoep.mx">manueld@inaoep.mx</a> , <a href="mailto:ekuz@inaoep.mx">ekuz@inaoep.mx</a></font></p>     <p align="justify"><font face="verdana" size="2"> <i><sup>c</sup> Facultad de Ciencias F&iacute;sico Matem&aacute;ticas, Benem&eacute;rita Universidad Aut&oacute;noma de Puebla, Av. San Claudio esquina 18 sur, Col. San Manuel, Puebla, Pue., 72320, M&eacute;xico, </i>e&#150;mail: <a href="mailto:gbeltran@fcfm.buap.mx">gbeltran@fcfm.buap.mx</a></font></p>     <p align="justify"><font face="verdana" size="2"> &nbsp;</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"> Recibido el 21 de noviembre de 2008    <br> Aceptado el 6 de junio de 2009</font></p>     <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"> Un laser de fibra con emisi&oacute;n de longitud de onda dual seleccionable es propuesto y demostrado experimentalmente basado en rejillas de Bragg de fibra usando una cavidad lineal, ajustando el traslape de las rejillas de Bragg y el ancho de banda homog&eacute;neo de l&iacute;nea de ganancia de la fibra dopada con erbio (EDF, <i>Erbium&#150;doped fiber</i>). La sola o dual longitud de onda es obtenida igualando la longitud de onda de las rejillas de Bragg.</font></p>     <p align="justify"><font face="verdana" size="2"> <b>Descriptores: </b>L&aacute;seres de fibra; l&aacute;ser de fibra seleccionable; amplificadores de fibra dopada con erbio; rejillas de Bragg.</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"> A switchable dual wavelength fiber laser is proposed and experimentally demonstrated based on fiber Bragg gratings by using a linear cavity, adjusting the overlap on the Bragg gratings and the homog&eacute;neous gain broadening of the erbium doped fiber (EDF). The single or dual lasing wavelength can be also obtained by matching the wavelength of the Bragg gratings.</font></p>     <p align="justify"><font face="verdana" size="2"> <b>Keywords: </b>Fiber lasers; switchable fiber laser; erbium doped fiber amplifiers (EDFAs); fiber Bragg gratings.</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"> &nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"> PACS: 42.55.Wd; 42.60.Da; 42.81.Pa</font></p>     <p align="justify"><font face="verdana" size="2"> &nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"> <a href="/pdf/rmf/v55n1/v55n1a10.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"> Este  trabajo  ha  sido  apoyado  por proyecto  PROMEP 103.5/07/2764</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.D. Kersey y W.W. 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