Inverse Design of Silicon Photonic Modulators
A novel shape optimization procedure is formulated for obtaining a higher phase change while maintaining high transmission in phase modulators. The formulation is implemented as a shape optimization tool. Subwavelength grating-based Si carrier depletion and carrier injection modulators are considere...
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| Veröffentlicht in: | Journal of lightwave technology 2022-10, Vol.40 (20), p.6939-6945 |
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| container_issue | 20 |
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| container_title | Journal of lightwave technology |
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| creator | B., Maragathaeswari Saleem, Hudhaifah Ibn Sadasivan, Viswas |
| description | A novel shape optimization procedure is formulated for obtaining a higher phase change while maintaining high transmission in phase modulators. The formulation is implemented as a shape optimization tool. Subwavelength grating-based Si carrier depletion and carrier injection modulators are considered for testing the optimizer. Carrier transport simulations were performed to extract the carrier concentration profiles and were used in the optimizer. The optimized structures are then validated using simulation for transmission and phase change. The results show that the optimization tool developed can optimize both carrier injection and depletion type modulators, in terms of both transmission and phase modulation. The optimized structures can be placed in a ring or Mach-Zehnder modulator to make compact modulators with low drive voltages. |
| doi_str_mv | 10.1109/JLT.2022.3189098 |
| format | Article |
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The formulation is implemented as a shape optimization tool. Subwavelength grating-based Si carrier depletion and carrier injection modulators are considered for testing the optimizer. Carrier transport simulations were performed to extract the carrier concentration profiles and were used in the optimizer. The optimized structures are then validated using simulation for transmission and phase change. The results show that the optimization tool developed can optimize both carrier injection and depletion type modulators, in terms of both transmission and phase modulation. The optimized structures can be placed in a ring or Mach-Zehnder modulator to make compact modulators with low drive voltages.</description><identifier>ISSN: 0733-8724</identifier><identifier>EISSN: 1558-2213</identifier><identifier>DOI: 10.1109/JLT.2022.3189098</identifier><identifier>CODEN: JLTEDG</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Adjoint shape optimization ; Carrier density ; Carrier injection ; Carrier transport ; Depletion ; Indexes ; interconnects ; Inverse design ; Mach-Zehnder interferometers ; Modulation ; Modulators ; nanowires ; Optimization ; Phase change ; Phase modulation ; Refractive index ; Shape ; Shape optimization ; Silicon ; silicon modulator ; Silicon photonics</subject><ispartof>Journal of lightwave technology, 2022-10, Vol.40 (20), p.6939-6945</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c221t-e3d6159d6886d2c89ea68d06e66b9c7bffdf8fe19558a8123e784c5b39618e513</citedby><cites>FETCH-LOGICAL-c221t-e3d6159d6886d2c89ea68d06e66b9c7bffdf8fe19558a8123e784c5b39618e513</cites><orcidid>0000-0002-5335-0915</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9817652$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9817652$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>B., Maragathaeswari</creatorcontrib><creatorcontrib>Saleem, Hudhaifah Ibn</creatorcontrib><creatorcontrib>Sadasivan, Viswas</creatorcontrib><title>Inverse Design of Silicon Photonic Modulators</title><title>Journal of lightwave technology</title><addtitle>JLT</addtitle><description>A novel shape optimization procedure is formulated for obtaining a higher phase change while maintaining high transmission in phase modulators. The formulation is implemented as a shape optimization tool. Subwavelength grating-based Si carrier depletion and carrier injection modulators are considered for testing the optimizer. Carrier transport simulations were performed to extract the carrier concentration profiles and were used in the optimizer. The optimized structures are then validated using simulation for transmission and phase change. The results show that the optimization tool developed can optimize both carrier injection and depletion type modulators, in terms of both transmission and phase modulation. The optimized structures can be placed in a ring or Mach-Zehnder modulator to make compact modulators with low drive voltages.</description><subject>Adjoint shape optimization</subject><subject>Carrier density</subject><subject>Carrier injection</subject><subject>Carrier transport</subject><subject>Depletion</subject><subject>Indexes</subject><subject>interconnects</subject><subject>Inverse design</subject><subject>Mach-Zehnder interferometers</subject><subject>Modulation</subject><subject>Modulators</subject><subject>nanowires</subject><subject>Optimization</subject><subject>Phase change</subject><subject>Phase modulation</subject><subject>Refractive index</subject><subject>Shape</subject><subject>Shape optimization</subject><subject>Silicon</subject><subject>silicon modulator</subject><subject>Silicon photonics</subject><issn>0733-8724</issn><issn>1558-2213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kM9LAzEQhYMoWKt3wcuC562ZZJNMjuLPSkXBeg7b7ES31E1NtoL_vVtaPM3le-8NH2PnwCcA3F49zeYTwYWYSEDLLR6wESiFpRAgD9mIGylLNKI6Zic5LzmHqkIzYuW0-6GUqbil3H50RQzFW7tqfeyK18_Yx671xXNsNqu6jymfsqNQrzKd7e-Yvd_fzW8ey9nLw_Tmelb6Ya4vSTYalG00om6ER0u1xoZr0nphvVmE0AQMBHZ4sEYQkgxWXi2k1YCkQI7Z5a53neL3hnLvlnGTumHSCSMMr5QReqD4jvIp5pwouHVqv-r064C7rRQ3SHFbKW4vZYhc7CItEf3jFsFoJeQfHAZb2w</recordid><startdate>20221015</startdate><enddate>20221015</enddate><creator>B., Maragathaeswari</creator><creator>Saleem, Hudhaifah Ibn</creator><creator>Sadasivan, Viswas</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-5335-0915</orcidid></search><sort><creationdate>20221015</creationdate><title>Inverse Design of Silicon Photonic Modulators</title><author>B., Maragathaeswari ; Saleem, Hudhaifah Ibn ; Sadasivan, Viswas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c221t-e3d6159d6886d2c89ea68d06e66b9c7bffdf8fe19558a8123e784c5b39618e513</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Adjoint shape optimization</topic><topic>Carrier density</topic><topic>Carrier injection</topic><topic>Carrier transport</topic><topic>Depletion</topic><topic>Indexes</topic><topic>interconnects</topic><topic>Inverse design</topic><topic>Mach-Zehnder interferometers</topic><topic>Modulation</topic><topic>Modulators</topic><topic>nanowires</topic><topic>Optimization</topic><topic>Phase change</topic><topic>Phase modulation</topic><topic>Refractive index</topic><topic>Shape</topic><topic>Shape optimization</topic><topic>Silicon</topic><topic>silicon modulator</topic><topic>Silicon photonics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>B., Maragathaeswari</creatorcontrib><creatorcontrib>Saleem, Hudhaifah Ibn</creatorcontrib><creatorcontrib>Sadasivan, Viswas</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of lightwave technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>B., Maragathaeswari</au><au>Saleem, Hudhaifah Ibn</au><au>Sadasivan, Viswas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Inverse Design of Silicon Photonic Modulators</atitle><jtitle>Journal of lightwave technology</jtitle><stitle>JLT</stitle><date>2022-10-15</date><risdate>2022</risdate><volume>40</volume><issue>20</issue><spage>6939</spage><epage>6945</epage><pages>6939-6945</pages><issn>0733-8724</issn><eissn>1558-2213</eissn><coden>JLTEDG</coden><abstract>A novel shape optimization procedure is formulated for obtaining a higher phase change while maintaining high transmission in phase modulators. The formulation is implemented as a shape optimization tool. Subwavelength grating-based Si carrier depletion and carrier injection modulators are considered for testing the optimizer. Carrier transport simulations were performed to extract the carrier concentration profiles and were used in the optimizer. The optimized structures are then validated using simulation for transmission and phase change. The results show that the optimization tool developed can optimize both carrier injection and depletion type modulators, in terms of both transmission and phase modulation. The optimized structures can be placed in a ring or Mach-Zehnder modulator to make compact modulators with low drive voltages.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/JLT.2022.3189098</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-5335-0915</orcidid></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Adjoint shape optimization Carrier density Carrier injection Carrier transport Depletion Indexes interconnects Inverse design Mach-Zehnder interferometers Modulation Modulators nanowires Optimization Phase change Phase modulation Refractive index Shape Shape optimization Silicon silicon modulator Silicon photonics |
| title | Inverse Design of Silicon Photonic Modulators |
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