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Guided photoluminescence study of Nd-doped silicon rich silicon oxide and silicon rich silicon nitride waveguides
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10.1063/1.4812470
/content/aip/journal/jap/114/1/10.1063/1.4812470
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/1/10.1063/1.4812470

Figures

Image of FIG. 1.
FIG. 1.

(a) Experimental and theoretical reflectance spectra of a 1100-nm-thick Nd-doped SRSO layer deposited on 8 m-thick thermally grown SiO on Si wafer and its schematic representation of the sample, (b) experimental and theoretical reflectance spectra of a 500-nm-thick Nd-doped SRSN layer deposited on Si substrate and its schematic representation of the sample, (c) evolution of refractive index of silica layer, Nd-doped SRSO layer and Nd-doped SRSN layer as a function of the wavelength obtained from reflectance spectrum (line) and by m-lines measurements (dots).

Image of FIG. 2.
FIG. 2.

(a) Calculated number of modes as a function of the thickness of SRSO guiding layer deposited on 8 m-thick thermally grown SiO on Si wafer for TE and TM polarization at 1064 nm, and field mode profile for TE polarization and for SRSO thickness equal to 1.1 m at 1064 nm, (b) calculated number of modes as a function of the thickness of SRSN guiding layer deposited on 8 m-thick thermally grown SiO on Si wafer for TE and TM polarization at 1064 nm, and field mode profile for TE polarization and for SRSN thickness equal to 0.4 m at 1064 nm (the interface between air and guiding layer is localized for a thickness equal to zero meter).

Image of FIG. 3.
FIG. 3.

(a) Schematic representation of the top surface pumping at 488 nm and near-field of guided PL at the output of planar optical waveguide, (b)comparison of guided PL spectra for the three lines corresponding to FI, F-I, and F-I radiative transitions for Nd-doped-SRSO and SRSN planar waveguides obtained by top-pumping.

Image of FIG. 4.
FIG. 4.

(a) Evolution of guided PL spectra by top surface pumping as a function of the pump power for Nd-doped-SRSO planar waveguides, inset: integrated PL for the two lines corresponding to FI (850–1000 nm) and F-I (1000–1200 nm) radiative transitions as a function of the pump power for Nd-doped-SRSO planar waveguides, (b) evolution of guided PL spectra by top surface pumping as a function of the pump power for Nd-doped-SRSN planar waveguides, inset: integrated PL for the two lines corresponding to FI (850–1000 nm) and F-I (1000–1200 nm) radiative transitions as a function of the pump power for Nd-doped-SRSN planar waveguides

Image of FIG. 5.
FIG. 5.

(a) Schematic representation of the top surface pumping at 488 nm, (b) evolution of guided PL spectra as a function of z, the distance between the excitation area and the output of the waveguide for Nd-doped- SRSO planar waveguides, inset: Integrated PL for the two lines corresponding to FI (850–1000 nm) and F-I (1000–1200 nm) radiative transitions for Nd-doped-SRSO planar waveguides, (c) evolution of guided PL spectra as a function of z, the distance between the excitation area and the output of the waveguide for Nd-doped-SRSN planar waveguides, inset: integrated PL for the two lines corresponding to FI (850–1000 nm) and F-I (1000–1200 nm) radiative transitions for Nd-doped- SRSN planar waveguides.

Image of FIG. 6.
FIG. 6.

(a) Guided fluorescence decays of F-I radiative transition excited at 444 nm by top surface pumping of of Nd-doped-SRSO planar waveguides, (b) guided fluorescence decays of F-I radiative transition excited at 444 nm by top surface pumping of Nd-doped-SRSN planar waveguides.

Tables

Generic image for table
Table I.

Refractive indices for different wavelengths and for different films.

Generic image for table
Table II.

Physical characteristics of SRSO and SRSN films.

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/content/aip/journal/jap/114/1/10.1063/1.4812470
2013-07-03
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Guided photoluminescence study of Nd-doped silicon rich silicon oxide and silicon rich silicon nitride waveguides
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/1/10.1063/1.4812470
10.1063/1.4812470
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