Influence of scattering and two-photon absorption on the optical loss in GaAs-Al/sub 2/O/sub 3/ nonlinear waveguides measured using femtosecond pulses
The influence of scattering and two-photon absorption on the optical loss in GaAs-Al/sub 2/O/sub 3/ semiconductor nonlinear waveguides has been studied using femtosecond pulses. By deploying a scattering technique, loss coefficients were evaluated over an extended wavelength range of 1.3-2.1 /spl mu...
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| Veröffentlicht in: | IEEE journal of quantum electronics 2003-03, Vol.39 (3), p.478-486 |
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| container_end_page | 486 |
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| container_title | IEEE journal of quantum electronics |
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| creator | Soma Venugopal Rao Moutzouris, K. Ebrahimzadeh, M. De Rossi, A. Gintz, G. Calligaro, M. Ortiz, V. Berger, V. |
| description | The influence of scattering and two-photon absorption on the optical loss in GaAs-Al/sub 2/O/sub 3/ semiconductor nonlinear waveguides has been studied using femtosecond pulses. By deploying a scattering technique, loss coefficients were evaluated over an extended wavelength range of 1.3-2.1 /spl mu/m in the near-infrared. A systematic study involving intensity and wavelength dependence of the loss revealed the presence of two-photon absorption for wavelengths below 1.6 /spl mu/m. A simple nonlinear transmission study enabled the separation of the two-photon absorption coefficient from scattering and linear absorption. The calculated two-photon absorption coefficients were /spl sim/9-20 cm/GW. |
| doi_str_mv | 10.1109/JQE.2002.808173 |
| format | Article |
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The calculated two-photon absorption coefficients were /spl sim/9-20 cm/GW.</description><subject>Absorption</subject><subject>Frequency conversion</subject><subject>Loss measurement</subject><subject>Nonlinear optics</subject><subject>Optical losses</subject><subject>Optical pulses</subject><subject>Optical scattering</subject><subject>Optical waveguides</subject><subject>Pulse measurements</subject><subject>Ultrafast optics</subject><issn>0018-9197</issn><issn>1558-1713</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpFUMtqwzAQFKWFpo9zD73oBxzrGcvHENI0JRAK7dmsZSlxcSQj2Q39kX5vlaZQWJhZmNlhB6EHSqaUkjJ_eV1OGSFsqoiiBb9AEyqlymhB-SWaEEJVVtKyuEY3MX6kVQhFJuh77Ww3GqcN9hZHDcNgQut2GFyDh6PP-r0fvMNQRx_6oU00zbBP8rRp6HDnY8StwyuYx2ze5XGsMcu3v8hz7LzrWmcg4CN8mt3YNibig4E4BtPgMZ6yrDkMPhrtU2Y_dtHEO3RlIZH7P7xF70_Lt8Vzttmu1ov5JtOUzFSmONOlqjnMiATNCsuh5lYKrZQohGUgRGGaGeFCF6yurQbKqRSybERjQQK_Rfn5rg7pjWBs1Yf2AOGroqQ61VqlWqtTrdW51uR4PDtaY8y_mioqmeI_vq52Cg</recordid><startdate>200303</startdate><enddate>200303</enddate><creator>Soma Venugopal Rao</creator><creator>Moutzouris, K.</creator><creator>Ebrahimzadeh, M.</creator><creator>De Rossi, A.</creator><creator>Gintz, G.</creator><creator>Calligaro, M.</creator><creator>Ortiz, V.</creator><creator>Berger, V.</creator><general>IEEE</general><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>200303</creationdate><title>Influence of scattering and two-photon absorption on the optical loss in GaAs-Al/sub 2/O/sub 3/ nonlinear waveguides measured using femtosecond pulses</title><author>Soma Venugopal Rao ; Moutzouris, K. ; Ebrahimzadeh, M. ; De Rossi, A. ; Gintz, G. ; Calligaro, M. ; Ortiz, V. ; Berger, V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1068-832c98b3a605ac27f3ab3f54c88474f2a447ed6034c72bbfca1315459d4dfa5a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Absorption</topic><topic>Frequency conversion</topic><topic>Loss measurement</topic><topic>Nonlinear optics</topic><topic>Optical losses</topic><topic>Optical pulses</topic><topic>Optical scattering</topic><topic>Optical waveguides</topic><topic>Pulse measurements</topic><topic>Ultrafast optics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Soma Venugopal Rao</creatorcontrib><creatorcontrib>Moutzouris, K.</creatorcontrib><creatorcontrib>Ebrahimzadeh, M.</creatorcontrib><creatorcontrib>De Rossi, A.</creatorcontrib><creatorcontrib>Gintz, G.</creatorcontrib><creatorcontrib>Calligaro, M.</creatorcontrib><creatorcontrib>Ortiz, V.</creatorcontrib><creatorcontrib>Berger, V.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><jtitle>IEEE journal of quantum electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Soma Venugopal Rao</au><au>Moutzouris, K.</au><au>Ebrahimzadeh, M.</au><au>De Rossi, A.</au><au>Gintz, G.</au><au>Calligaro, M.</au><au>Ortiz, V.</au><au>Berger, V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of scattering and two-photon absorption on the optical loss in GaAs-Al/sub 2/O/sub 3/ nonlinear waveguides measured using femtosecond pulses</atitle><jtitle>IEEE journal of quantum electronics</jtitle><stitle>JQE</stitle><date>2003-03</date><risdate>2003</risdate><volume>39</volume><issue>3</issue><spage>478</spage><epage>486</epage><pages>478-486</pages><issn>0018-9197</issn><eissn>1558-1713</eissn><coden>IEJQA7</coden><abstract>The influence of scattering and two-photon absorption on the optical loss in GaAs-Al/sub 2/O/sub 3/ semiconductor nonlinear waveguides has been studied using femtosecond pulses. By deploying a scattering technique, loss coefficients were evaluated over an extended wavelength range of 1.3-2.1 /spl mu/m in the near-infrared. A systematic study involving intensity and wavelength dependence of the loss revealed the presence of two-photon absorption for wavelengths below 1.6 /spl mu/m. A simple nonlinear transmission study enabled the separation of the two-photon absorption coefficient from scattering and linear absorption. The calculated two-photon absorption coefficients were /spl sim/9-20 cm/GW.</abstract><pub>IEEE</pub><doi>10.1109/JQE.2002.808173</doi><tpages>9</tpages></addata></record> |
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| ispartof | IEEE journal of quantum electronics, 2003-03, Vol.39 (3), p.478-486 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Absorption Frequency conversion Loss measurement Nonlinear optics Optical losses Optical pulses Optical scattering Optical waveguides Pulse measurements Ultrafast optics |
| title | Influence of scattering and two-photon absorption on the optical loss in GaAs-Al/sub 2/O/sub 3/ nonlinear waveguides measured using femtosecond pulses |
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