A Review of Polarization Dependence Applications for Asymmetric Waveguides Vertical Couplers in Compound Semiconductor Indium Phosphide
This paper reviews and presents a coherent approach to the design of compact vertical coupler (VC) in InP-based compound semiconductor with variable polarization dependence. As a polarization-independent (PI) coupler, the VC is shown to transfer light with more than 90% efficiency for both transvers...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Optics |
| Online Access: | http://dx.doi.org/10.1155/2011/164023 |
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| _version_ | 1850166901146124288 |
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| author | Chee-Wei Lee |
| author_facet | Chee-Wei Lee |
| author_sort | Chee-Wei Lee |
| collection | DOAJ |
| description | This paper reviews and presents a coherent approach to the design of compact vertical coupler (VC) in InP-based compound semiconductor with variable polarization dependence. As a polarization-independent (PI) coupler, the VC is shown to transfer light with more than 90% efficiency for both transverse-electric (TE) and transverse-magnetic (TM) polarizations. As a polarization-mode splitter (PMS), the VC is shown to preferentially couple TE or TM modes with a contrast ratio of up to 20 dB. We further demonstrate the single-mesa VC, which simplifies the fabrication process and potentially could improve the process yield, and its integration with a multimode interferometer (MMI). The versatility makes the VC a compact and useful input-stage device that not only maximizes input/output coupling efficiency to small active devices but also provides a degree of polarization control before the actual device. |
| format | Article |
| id | doaj-art-e4f027dcd855439894a4f5b76b5cef0b |
| institution | OA Journals |
| issn | 1687-9384 1687-9392 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Optics |
| spelling | doaj-art-e4f027dcd855439894a4f5b76b5cef0b2025-08-20T02:21:19ZengWileyInternational Journal of Optics1687-93841687-93922011-01-01201110.1155/2011/164023164023A Review of Polarization Dependence Applications for Asymmetric Waveguides Vertical Couplers in Compound Semiconductor Indium PhosphideChee-Wei Lee0Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, UKThis paper reviews and presents a coherent approach to the design of compact vertical coupler (VC) in InP-based compound semiconductor with variable polarization dependence. As a polarization-independent (PI) coupler, the VC is shown to transfer light with more than 90% efficiency for both transverse-electric (TE) and transverse-magnetic (TM) polarizations. As a polarization-mode splitter (PMS), the VC is shown to preferentially couple TE or TM modes with a contrast ratio of up to 20 dB. We further demonstrate the single-mesa VC, which simplifies the fabrication process and potentially could improve the process yield, and its integration with a multimode interferometer (MMI). The versatility makes the VC a compact and useful input-stage device that not only maximizes input/output coupling efficiency to small active devices but also provides a degree of polarization control before the actual device.http://dx.doi.org/10.1155/2011/164023 |
| spellingShingle | Chee-Wei Lee A Review of Polarization Dependence Applications for Asymmetric Waveguides Vertical Couplers in Compound Semiconductor Indium Phosphide International Journal of Optics |
| title | A Review of Polarization Dependence Applications for Asymmetric Waveguides Vertical Couplers in Compound Semiconductor Indium Phosphide |
| title_full | A Review of Polarization Dependence Applications for Asymmetric Waveguides Vertical Couplers in Compound Semiconductor Indium Phosphide |
| title_fullStr | A Review of Polarization Dependence Applications for Asymmetric Waveguides Vertical Couplers in Compound Semiconductor Indium Phosphide |
| title_full_unstemmed | A Review of Polarization Dependence Applications for Asymmetric Waveguides Vertical Couplers in Compound Semiconductor Indium Phosphide |
| title_short | A Review of Polarization Dependence Applications for Asymmetric Waveguides Vertical Couplers in Compound Semiconductor Indium Phosphide |
| title_sort | review of polarization dependence applications for asymmetric waveguides vertical couplers in compound semiconductor indium phosphide |
| url | http://dx.doi.org/10.1155/2011/164023 |
| work_keys_str_mv | AT cheeweilee areviewofpolarizationdependenceapplicationsforasymmetricwaveguidesverticalcouplersincompoundsemiconductorindiumphosphide AT cheeweilee reviewofpolarizationdependenceapplicationsforasymmetricwaveguidesverticalcouplersincompoundsemiconductorindiumphosphide |