Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/80453
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dc.titleFrequency characteristics of an avalanche photodiode in super-high-speed optical demodulation with electronic mixing
dc.contributor.authorLi, L.
dc.contributor.authorMendis, F.V.C.
dc.contributor.authorHaldar, M.K.
dc.contributor.authorNakajima, M.
dc.date.accessioned2014-10-07T02:57:43Z
dc.date.available2014-10-07T02:57:43Z
dc.date.issued1997-12
dc.identifier.citationLi, L.,Mendis, F.V.C.,Haldar, M.K.,Nakajima, M. (1997-12). Frequency characteristics of an avalanche photodiode in super-high-speed optical demodulation with electronic mixing. Journal of Optical Communications 18 (6) : 202-207. ScholarBank@NUS Repository.
dc.identifier.issn01734911
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/80453
dc.description.abstractAn analysis is presented for super-high-speed optical demodulation by an avalanche photodiode (APD) with electronic mixing. A normalized gain is defined to evaluate the performance of the demodulation. Unlike previous work, we include the effect of the non-linear variation of the APD capacitance with bias voltage as well as the effect of parasitic and amplifer input capacitance. As a result, the normalzed gain is dependent on the signal frequency and the frequency difference between the signal frequency and the local oscillator frequency. However, the current through the equivalent resistance of the APD is almost independent of signal frequency. The mixing output is mainly attributed to the nonlineanty of the multiplication factor. We show also that there is an optimal local oscillator voltage at which the normalized gain is maximized for a given avalanche photodiode.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentELECTRICAL ENGINEERING
dc.description.sourcetitleJournal of Optical Communications
dc.description.volume18
dc.description.issue6
dc.description.page202-207
dc.description.codenJOCOD
dc.identifier.isiutNOT_IN_WOS
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