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Article: Theoretical Analysis of Diffused Quantum-well Lasers and Optical Amplifiers

TitleTheoretical Analysis of Diffused Quantum-well Lasers and Optical Amplifiers
Authors
KeywordsDiffused quantum well (DFQW)
Distributed feedback (DFB) lasers
Optical amplifiers
Polarization independence
Quantum-well interdiffusion
Quantum-well intermixing
Wavelength tuning
Issue Date2003
PublisherIEEE.
Citation
Ieee Journal On Selected Topics In Quantum Electronics, 2003, v. 9 n. 3, p. 698-707 How to Cite?
AbstractDiffused quantum-well (QW) distributed feedback (DFB) lasers and optical amplifiers will be theoretically analyzed in this paper. For DFB lasers, a design rule will be proposed and the validity of the design rule will be discussed with respect to changes in the injected carrier density. The range of grating period, which can be used in the design, is discussed. As a consequence, the maximum tuning range of the emission wavelength can be estimated without involving the time-consuming self-consistent simulation. The features of polarization independence of optical amplifiers achieved by using diffused QWs are also discussed. Our theoretical results successfully explain why polarization independence can achieve in the long-wavelength tail of the modal gain and absorption coefficient but not at photon energies above the transition edge. This explanation applies to other tensile-strained QWs for polarization-independent applications. The understanding is crucial for optimizing polarization-independent devices. To conclude, our analysis of the diffused QW optical devices demonstrates that QW intermixing technology is a practical candidate for not only realizing monolithic photonic integrated circuit, but also enhancing optical device performance.
Persistent Identifierhttp://hdl.handle.net/10722/42975
ISSN
2015 Impact Factor: 3.466
2015 SCImago Journal Rankings: 1.632
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChoy, WCHen_HK
dc.contributor.authorChan, KSen_HK
dc.date.accessioned2007-03-23T04:35:50Z-
dc.date.available2007-03-23T04:35:50Z-
dc.date.issued2003en_HK
dc.identifier.citationIeee Journal On Selected Topics In Quantum Electronics, 2003, v. 9 n. 3, p. 698-707en_HK
dc.identifier.issn1077-260Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/42975-
dc.description.abstractDiffused quantum-well (QW) distributed feedback (DFB) lasers and optical amplifiers will be theoretically analyzed in this paper. For DFB lasers, a design rule will be proposed and the validity of the design rule will be discussed with respect to changes in the injected carrier density. The range of grating period, which can be used in the design, is discussed. As a consequence, the maximum tuning range of the emission wavelength can be estimated without involving the time-consuming self-consistent simulation. The features of polarization independence of optical amplifiers achieved by using diffused QWs are also discussed. Our theoretical results successfully explain why polarization independence can achieve in the long-wavelength tail of the modal gain and absorption coefficient but not at photon energies above the transition edge. This explanation applies to other tensile-strained QWs for polarization-independent applications. The understanding is crucial for optimizing polarization-independent devices. To conclude, our analysis of the diffused QW optical devices demonstrates that QW intermixing technology is a practical candidate for not only realizing monolithic photonic integrated circuit, but also enhancing optical device performance.en_HK
dc.format.extent437567 bytes-
dc.format.extent2113 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE Journal on Selected Topics in Quantum Electronicsen_HK
dc.rights©2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectDiffused quantum well (DFQW)en_HK
dc.subjectDistributed feedback (DFB) lasersen_HK
dc.subjectOptical amplifiersen_HK
dc.subjectPolarization independenceen_HK
dc.subjectQuantum-well interdiffusionen_HK
dc.subjectQuantum-well intermixingen_HK
dc.subjectWavelength tuningen_HK
dc.titleTheoretical Analysis of Diffused Quantum-well Lasers and Optical Amplifiersen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1077-260X&volume=9&issue=3&spage=698&epage=707&date=2003&atitle=Theoretical+analysis+of+diffused+quantum-well+lasers+and+optical+amplifiersen_HK
dc.identifier.emailChoy, WCH:chchoy@eee.hku.hken_HK
dc.identifier.authorityChoy, WCH=rp00218en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/JSTQE.2003.818842en_HK
dc.identifier.scopuseid_2-s2.0-0346276719en_HK
dc.identifier.hkuros91557-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0346276719&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume9en_HK
dc.identifier.issue3en_HK
dc.identifier.spage698en_HK
dc.identifier.epage707en_HK
dc.identifier.isiWOS:000186993000003-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChoy, WCH=7006202371en_HK
dc.identifier.scopusauthoridChan, KS=35777714700en_HK

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