Compact Broadband Directional Couplers Using Subwavelength Gratings
We experimentally demonstrate compact broadband directional couplers using subwavelength gratings for silicon-on-insulator wafers with silicon layers of 220 nm. The dispersion properties of the optical modes are engineered using subwavelength gratings, which allow broadband operation. Finite-differe...
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| Veröffentlicht in: | IEEE photonics journal 2016-06, Vol.8 (3), p.1-8 |
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| creator | Wang, Yun Lu, Zeqin Ma, Minglei Yun, Han Zhang, Fan Jaeger, Nicolas A. F. Chrostowski, Lukas |
| description | We experimentally demonstrate compact broadband directional couplers using subwavelength gratings for silicon-on-insulator wafers with silicon layers of 220 nm. The dispersion properties of the optical modes are engineered using subwavelength gratings, which allow broadband operation. Finite-difference time-domain (FDTD)-based band structure calculations, with significantly reduced simulation time, were used to analyze the design, which included both the structure and material dispersions. Compact broadband direction couplers, with device lengths shorter than 14 \mu\text{m}, which cover a bandwidth of 100 nm for power splitting ratios of 50/50, 40/60, 30/70, and 20/80, are designed and fabricated for the fundamental transverse electric mode with a central operating wavelength of 1550 nm. |
| doi_str_mv | 10.1109/JPHOT.2016.2574335 |
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Compact broadband direction couplers, with device lengths shorter than 14 <inline-formula> <tex-math notation="LaTeX">\mu\text{m}</tex-math></inline-formula>, which cover a bandwidth of 100 nm for power splitting ratios of 50/50, 40/60, 30/70, and 20/80, are designed and fabricated for the fundamental transverse electric mode with a central operating wavelength of 1550 nm.</description><identifier>ISSN: 1943-0655</identifier><identifier>EISSN: 1943-0647</identifier><identifier>DOI: 10.1109/JPHOT.2016.2574335</identifier><identifier>CODEN: PJHOC3</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>Bandwidth ; Broadband ; Couplers ; Couplings ; Design analysis ; Devices ; Diffraction gratings ; Directional couplers ; Dispersion ; Gratings (spectra) ; Mathematical analysis ; Optical device fabrication ; Optical waveguides ; Subwavelength structures ; Time-domain analysis ; Waveguide devices</subject><ispartof>IEEE photonics journal, 2016-06, Vol.8 (3), p.1-8</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2016</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c504t-bd0a6e6d6ba382ba8fc54ada8a02b6562e8cef3292ca1d2334f240cbf7c8caf23</citedby><cites>FETCH-LOGICAL-c504t-bd0a6e6d6ba382ba8fc54ada8a02b6562e8cef3292ca1d2334f240cbf7c8caf23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7480755$$EHTML$$P50$$Gieee$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,860,2096,27610,27901,27902,54908</link.rule.ids></links><search><creatorcontrib>Wang, Yun</creatorcontrib><creatorcontrib>Lu, Zeqin</creatorcontrib><creatorcontrib>Ma, Minglei</creatorcontrib><creatorcontrib>Yun, Han</creatorcontrib><creatorcontrib>Zhang, Fan</creatorcontrib><creatorcontrib>Jaeger, Nicolas A. F.</creatorcontrib><creatorcontrib>Chrostowski, Lukas</creatorcontrib><title>Compact Broadband Directional Couplers Using Subwavelength Gratings</title><title>IEEE photonics journal</title><addtitle>JPHOT</addtitle><description>We experimentally demonstrate compact broadband directional couplers using subwavelength gratings for silicon-on-insulator wafers with silicon layers of 220 nm. The dispersion properties of the optical modes are engineered using subwavelength gratings, which allow broadband operation. Finite-difference time-domain (FDTD)-based band structure calculations, with significantly reduced simulation time, were used to analyze the design, which included both the structure and material dispersions. Compact broadband direction couplers, with device lengths shorter than 14 <inline-formula> <tex-math notation="LaTeX">\mu\text{m}</tex-math></inline-formula>, which cover a bandwidth of 100 nm for power splitting ratios of 50/50, 40/60, 30/70, and 20/80, are designed and fabricated for the fundamental transverse electric mode with a central operating wavelength of 1550 nm.</description><subject>Bandwidth</subject><subject>Broadband</subject><subject>Couplers</subject><subject>Couplings</subject><subject>Design analysis</subject><subject>Devices</subject><subject>Diffraction gratings</subject><subject>Directional couplers</subject><subject>Dispersion</subject><subject>Gratings (spectra)</subject><subject>Mathematical analysis</subject><subject>Optical device fabrication</subject><subject>Optical waveguides</subject><subject>Subwavelength structures</subject><subject>Time-domain analysis</subject><subject>Waveguide devices</subject><issn>1943-0655</issn><issn>1943-0647</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpdkU9P3DAQxSNUpFLKFyiXSL30kq3_xs6xDbBLhQQScLbG9nibVTbe2kkrvj1ZFu2hpxmNfu_paV5RfKFkQSlpvv96WN0_LRih9YJJJTiXJ8UZbQSvSC3Uh-Mu5cfiU84bQuqGyuasaNu43YEby58pgrcw-PKqS-jGLg7Ql22cdj2mXD7nbliXj5P9B3-xx2E9_i6XCcb5mj8XpwH6jBfv87x4vrl-alfV3f3ytv1xVzlJxFhZT6DG2tcWuGYWdHBSgAcNhNla1gy1w8BZwxxQzzgXgQnibFBOOwiMnxe3B18fYWN2qdtCejEROvN2iGltII2d69FQRn2wxMnAqRDUa4pUIgaq0FnB917fDl67FP9MmEez7bLDvocB45QN1UxKpuYUM_r1P3QTpzR_Z6ZUo3UjmFIzxQ6USzHnhOEYkBKz78i8dWT2HZn3jmbR5UHUIeJRoIQmSkr-CmXbjXo</recordid><startdate>20160601</startdate><enddate>20160601</enddate><creator>Wang, Yun</creator><creator>Lu, Zeqin</creator><creator>Ma, Minglei</creator><creator>Yun, Han</creator><creator>Zhang, Fan</creator><creator>Jaeger, Nicolas A. 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F. ; Chrostowski, Lukas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c504t-bd0a6e6d6ba382ba8fc54ada8a02b6562e8cef3292ca1d2334f240cbf7c8caf23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Bandwidth</topic><topic>Broadband</topic><topic>Couplers</topic><topic>Couplings</topic><topic>Design analysis</topic><topic>Devices</topic><topic>Diffraction gratings</topic><topic>Directional couplers</topic><topic>Dispersion</topic><topic>Gratings (spectra)</topic><topic>Mathematical analysis</topic><topic>Optical device fabrication</topic><topic>Optical waveguides</topic><topic>Subwavelength structures</topic><topic>Time-domain analysis</topic><topic>Waveguide devices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Yun</creatorcontrib><creatorcontrib>Lu, Zeqin</creatorcontrib><creatorcontrib>Ma, Minglei</creatorcontrib><creatorcontrib>Yun, Han</creatorcontrib><creatorcontrib>Zhang, Fan</creatorcontrib><creatorcontrib>Jaeger, Nicolas A. F.</creatorcontrib><creatorcontrib>Chrostowski, Lukas</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE Xplore Open Access Journals</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><collection>DOAJ Directory of Open Access Journals</collection><jtitle>IEEE photonics journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Yun</au><au>Lu, Zeqin</au><au>Ma, Minglei</au><au>Yun, Han</au><au>Zhang, Fan</au><au>Jaeger, Nicolas A. F.</au><au>Chrostowski, Lukas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Compact Broadband Directional Couplers Using Subwavelength Gratings</atitle><jtitle>IEEE photonics journal</jtitle><stitle>JPHOT</stitle><date>2016-06-01</date><risdate>2016</risdate><volume>8</volume><issue>3</issue><spage>1</spage><epage>8</epage><pages>1-8</pages><issn>1943-0655</issn><eissn>1943-0647</eissn><coden>PJHOC3</coden><abstract>We experimentally demonstrate compact broadband directional couplers using subwavelength gratings for silicon-on-insulator wafers with silicon layers of 220 nm. The dispersion properties of the optical modes are engineered using subwavelength gratings, which allow broadband operation. Finite-difference time-domain (FDTD)-based band structure calculations, with significantly reduced simulation time, were used to analyze the design, which included both the structure and material dispersions. 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| source | DOAJ Directory of Open Access Journals; Free E-Journal (出版社公開部分のみ）; IEEE Xplore Open Access Journals |
| subjects | Bandwidth Broadband Couplers Couplings Design analysis Devices Diffraction gratings Directional couplers Dispersion Gratings (spectra) Mathematical analysis Optical device fabrication Optical waveguides Subwavelength structures Time-domain analysis Waveguide devices |
| title | Compact Broadband Directional Couplers Using Subwavelength Gratings |
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