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6-H single-crystal silicon carbide thermo-optic coefficient measurements for ultrahigh temperatures up to 1273 K in the telecommunications infrared band
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10.1063/1.2133897
/content/aip/journal/jap/98/10/10.1063/1.2133897
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/10/10.1063/1.2133897
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Fiber-free-space hybrid thermo-optic coefficient (TOC) measurement system that exploits the natural étalon behavior of the single-crystal 6H-SiC chip placed in air. L: laser, PBS: polarization beam splitter, QWP: quarter wave plate, SMF: single mode fiber.

Image of FIG. 2.
FIG. 2.

Normalized power measured by the power meter in Fig. 1 as the SiC chip temperature is increased from near room temperature to 1273 K.

Image of FIG. 3.
FIG. 3.

Plot of measured modulo- values of phase vs SiC chip temperature. The dots are the 37 data points while the solid line is the cubic fit to the data.

Image of FIG. 4.
FIG. 4.

Calculated 6H-SiC thermo-optic coefficient (TOC) versus SiC temperature at 1550 nm using the Fig. 3 measured cubic fit data for the phase change with temperature. The TOC expression shows a quadratic dependence on the temperature.

Image of FIG. 5.
FIG. 5.

Calculated 6H-SiC thermo-optic coefficient (TOC) versus SiC temperature at 1550 nm. Data 1 curve is from Fig. 4 using the approximate expression of Eq. (10) for TOC. Data 2 curve is using the exact expression of Eq. (7) for the TOC.

Image of FIG. 6.
FIG. 6.

Plot of the factor in Eq. (7), i.e., the difference between Data 1 and Data 2 in Fig. 5 showing the small error introduced if TOC of 6H-SiC chip is calculated without prior knowledge of 6H-SiC refractive index.

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/content/aip/journal/jap/98/10/10.1063/1.2133897
2005-11-21
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: 6-H single-crystal silicon carbide thermo-optic coefficient measurements for ultrahigh temperatures up to 1273 K in the telecommunications infrared band
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/10/10.1063/1.2133897
10.1063/1.2133897
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