Design of diode laser using slab coupled optical waveguide with graded refractive index structure
•Improvement of slab coupled optical waveguide laser characteristics is main target.•Optical Power, Power conversion efficiency and slope efficiency were evaluated.•Graded refractive index and Graded dopant is proposed for slab layer.•The asymmetric barrier was used for increasing of internal quantu...
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| Veröffentlicht in: | Optics and laser technology 2022-03, Vol.147, p.107654, Article 107654 |
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| container_title | Optics and laser technology |
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| creator | Abbasi, Seyed Peyman Mahdieh, Mohammad Hossein |
| description | •Improvement of slab coupled optical waveguide laser characteristics is main target.•Optical Power, Power conversion efficiency and slope efficiency were evaluated.•Graded refractive index and Graded dopant is proposed for slab layer.•The asymmetric barrier was used for increasing of internal quantum efficiency.•The cavity length was optimized for power conversion efficiency.
Thickness and refractive index of slab layer have major effects in the electro-optical characteristics of slab coupled optical waveguide diode lasers. In this research, ordinary step refractive index profile was replaced by a broadened waveguide with linear graded refractive index profile and optimized doping. The results show such design can significantly improve the power conversion efficiency (PCE). According to these results, by using the asymmetric barrier in the sides of active region, the threshold current decreases and slop efficiency (SE) increases. The PCE and SE in the proposed structure are respectively 12% and 0.21 W/A higher than those in conventional step profile. |
| doi_str_mv | 10.1016/j.optlastec.2021.107654 |
| format | Article |
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Thickness and refractive index of slab layer have major effects in the electro-optical characteristics of slab coupled optical waveguide diode lasers. In this research, ordinary step refractive index profile was replaced by a broadened waveguide with linear graded refractive index profile and optimized doping. The results show such design can significantly improve the power conversion efficiency (PCE). According to these results, by using the asymmetric barrier in the sides of active region, the threshold current decreases and slop efficiency (SE) increases. The PCE and SE in the proposed structure are respectively 12% and 0.21 W/A higher than those in conventional step profile.</description><identifier>ISSN: 0030-3992</identifier><identifier>EISSN: 1879-2545</identifier><identifier>DOI: 10.1016/j.optlastec.2021.107654</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Electro-optical effect ; Energy conversion efficiency ; Graded Refractive Index ; Laser Diode ; Optical properties ; Optical waveguides ; Power conversion efficiency ; Refractivity ; Semiconductor lasers ; Slab coupled optical waveguide laser ; Thickness ; Threshold currents</subject><ispartof>Optics and laser technology, 2022-03, Vol.147, p.107654, Article 107654</ispartof><rights>2021 Elsevier Ltd</rights><rights>Copyright Elsevier BV Mar 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-f809585108d6253b18bcd888e7649d822918f4ef5268feab1347702ca108d5e33</citedby><cites>FETCH-LOGICAL-c343t-f809585108d6253b18bcd888e7649d822918f4ef5268feab1347702ca108d5e33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0030399221007428$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Abbasi, Seyed Peyman</creatorcontrib><creatorcontrib>Mahdieh, Mohammad Hossein</creatorcontrib><title>Design of diode laser using slab coupled optical waveguide with graded refractive index structure</title><title>Optics and laser technology</title><description>•Improvement of slab coupled optical waveguide laser characteristics is main target.•Optical Power, Power conversion efficiency and slope efficiency were evaluated.•Graded refractive index and Graded dopant is proposed for slab layer.•The asymmetric barrier was used for increasing of internal quantum efficiency.•The cavity length was optimized for power conversion efficiency.
Thickness and refractive index of slab layer have major effects in the electro-optical characteristics of slab coupled optical waveguide diode lasers. In this research, ordinary step refractive index profile was replaced by a broadened waveguide with linear graded refractive index profile and optimized doping. The results show such design can significantly improve the power conversion efficiency (PCE). According to these results, by using the asymmetric barrier in the sides of active region, the threshold current decreases and slop efficiency (SE) increases. The PCE and SE in the proposed structure are respectively 12% and 0.21 W/A higher than those in conventional step profile.</description><subject>Electro-optical effect</subject><subject>Energy conversion efficiency</subject><subject>Graded Refractive Index</subject><subject>Laser Diode</subject><subject>Optical properties</subject><subject>Optical waveguides</subject><subject>Power conversion efficiency</subject><subject>Refractivity</subject><subject>Semiconductor lasers</subject><subject>Slab coupled optical waveguide laser</subject><subject>Thickness</subject><subject>Threshold currents</subject><issn>0030-3992</issn><issn>1879-2545</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEqXwDVhineJHnDjLqjylSmxgbTn2JDgKSbCdFv4eV0VsWY00c--dmYPQNSUrSmhx263GKfY6RDArRhhN3bIQ-QlaUFlWGRO5OEULQjjJeFWxc3QRQkcIyQvBF0jfQXDtgMcGWzdawCkJPJ6DG1ocel1jM85TDxanLc7oHu_1DtrZJenexXfcem3T1EPjtYluB9gNFr5wiH42cfZwic4a3Qe4-q1L9PZw_7p5yrYvj8-b9TYzPOcxaySphBSUSFswwWsqa2OllFAWeWUlYxWVTQ6NYIVsQNeU52VJmNEHhwDOl-jmmDv58XOGEFU3zn5IKxUrGCtoJVmeVOVRZfwYQrpaTd59aP-tKFEHnqpTfzzVgac68kzO9dEJ6YmdA6-CcTAYsM6DicqO7t-MH9Vxg0A</recordid><startdate>202203</startdate><enddate>202203</enddate><creator>Abbasi, Seyed Peyman</creator><creator>Mahdieh, Mohammad Hossein</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>202203</creationdate><title>Design of diode laser using slab coupled optical waveguide with graded refractive index structure</title><author>Abbasi, Seyed Peyman ; Mahdieh, Mohammad Hossein</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-f809585108d6253b18bcd888e7649d822918f4ef5268feab1347702ca108d5e33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Electro-optical effect</topic><topic>Energy conversion efficiency</topic><topic>Graded Refractive Index</topic><topic>Laser Diode</topic><topic>Optical properties</topic><topic>Optical waveguides</topic><topic>Power conversion efficiency</topic><topic>Refractivity</topic><topic>Semiconductor lasers</topic><topic>Slab coupled optical waveguide laser</topic><topic>Thickness</topic><topic>Threshold currents</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Abbasi, Seyed Peyman</creatorcontrib><creatorcontrib>Mahdieh, Mohammad Hossein</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Optics and laser technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Abbasi, Seyed Peyman</au><au>Mahdieh, Mohammad Hossein</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Design of diode laser using slab coupled optical waveguide with graded refractive index structure</atitle><jtitle>Optics and laser technology</jtitle><date>2022-03</date><risdate>2022</risdate><volume>147</volume><spage>107654</spage><pages>107654-</pages><artnum>107654</artnum><issn>0030-3992</issn><eissn>1879-2545</eissn><abstract>•Improvement of slab coupled optical waveguide laser characteristics is main target.•Optical Power, Power conversion efficiency and slope efficiency were evaluated.•Graded refractive index and Graded dopant is proposed for slab layer.•The asymmetric barrier was used for increasing of internal quantum efficiency.•The cavity length was optimized for power conversion efficiency.
Thickness and refractive index of slab layer have major effects in the electro-optical characteristics of slab coupled optical waveguide diode lasers. In this research, ordinary step refractive index profile was replaced by a broadened waveguide with linear graded refractive index profile and optimized doping. The results show such design can significantly improve the power conversion efficiency (PCE). According to these results, by using the asymmetric barrier in the sides of active region, the threshold current decreases and slop efficiency (SE) increases. The PCE and SE in the proposed structure are respectively 12% and 0.21 W/A higher than those in conventional step profile.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.optlastec.2021.107654</doi></addata></record> |
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| ispartof | Optics and laser technology, 2022-03, Vol.147, p.107654, Article 107654 |
| issn | 0030-3992 1879-2545 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Electro-optical effect Energy conversion efficiency Graded Refractive Index Laser Diode Optical properties Optical waveguides Power conversion efficiency Refractivity Semiconductor lasers Slab coupled optical waveguide laser Thickness Threshold currents |
| title | Design of diode laser using slab coupled optical waveguide with graded refractive index structure |
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