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Coupling efficiency of monolithic, waveguide-integrated Si photodetectors
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10.1063/1.3089359
/content/aip/journal/apl/94/8/10.1063/1.3089359
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/8/10.1063/1.3089359
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic structure of a top-WG-coupled Si PD device. (b) Cross-section of the WG-coupled PD device. Some notations used in the equations are shown.

Image of FIG. 2.
FIG. 2.

Measured and fitted data of (a) normalized optical power output through the WGs coupled with PDs and (b) PD quantum efficiency vs detector coupling length. The sample is coupled with a relatively low index-contrast WG ( with ).

Image of FIG. 3.
FIG. 3.

Measured and fitted data of (a) normalized optical power output through the WGs coupled with PDs and (b) PD quantum efficiency vs detector coupling length. The samples are coupled with relatively high index-contrast WGs ( with and with ).

Image of FIG. 4.
FIG. 4.

Cross-section view of the mode profile immediately (at ) after coupling region to the PD begins. (a) In the coupling structure with smaller high index-contrast WG with flat rectangular shape (, ) (b) In the coupling structure with lower index-contrast WG with larger square dimensions (, ).

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/content/aip/journal/apl/94/8/10.1063/1.3089359
2009-02-24
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Coupling efficiency of monolithic, waveguide-integrated Si photodetectors
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/8/10.1063/1.3089359
10.1063/1.3089359
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