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Raman gain and nonlinear optical absorption measurements in a low-loss silicon waveguide
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10.1063/1.1794862
/content/aip/journal/apl/85/12/10.1063/1.1794862
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/12/10.1063/1.1794862
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Scanning electron microscope image of a silicon-on-insulator rib waveguide cross section. FOX: field oxide.

Image of FIG. 2.
FIG. 2.

Schematic pump–probe setup for SRS gain and nonlinear loss measurements. Pump: pump laser; probe: tunable probe laser; Mx: wavelength multiplexer; PC: polarization controller; ,, and : objective lenses; WG: S-shaped SOI waveguide; P: polarizer; F: optical filter; PD: photodetector; DAQ: data acquisition unit.

Image of FIG. 3.
FIG. 3.

(a) Raman gain profile at a pump power of . A Gaussian curve (solid line) is fitted to the measurement data. (b) Measured peak Raman gain as a function of the input pump power.

Image of FIG. 4.
FIG. 4.

Measured (symbols) and modeled (solid curve) transmitted optical intensity as a function of the input intensity for a -long waveguide. A carrier lifetime of is used in the modeling.

Image of FIG. 5.
FIG. 5.

Transient probe signal attenuation caused by free carriers generated by a short pump pulse. Fitting to the measurement data with an exponential curve (solid line) gives a decay time constant of .

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/content/aip/journal/apl/85/12/10.1063/1.1794862
2004-09-24
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Raman gain and nonlinear optical absorption measurements in a low-loss silicon waveguide
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/12/10.1063/1.1794862
10.1063/1.1794862
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