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|Title:||Fabrication of low-cost thermo-optic variable wave plate based on waveguides patterned on di-ureasil hybrids|
|Author:||Vicente, C. M. S.|
Lima, P. P.
de Zea Bermudez, V.
Carlos, L. D.
Andre, P. S.
Ferreira, R. A. S.
|Publisher:||OPTICAL SOC AMER|
|Abstract:||An integrated variable wave plate device based on a thermo-optic (TO) effect was fabricated by patterning a waveguide channel through direct UV laser writing on the surface of sol-gel derived organic-inorganic hybrid (di-ureasil) films. The di-ureasil layer is stable up to 250 degrees C and has a high TO coefficient calculated as -(4.9 +/- 0.5) x 10(-4) degrees C-1 at 1550 nm. The waveguide temperature was tuned, inducing optical phase retardation between the transverse electric and transverse magnetic modes, resulting in a controllable wave plate. A maximum phase retardation of 77 degrees was achieved for a waveguide induced temperature increase of 5C above room temperature, with a power consumption of 0.4 W. The thermal linear retardation coefficient was calculated to be 19 +/- 1 degrees/ degrees C. (C) 2014 Optical Society of America.|
|Appears in Collections:||CICECO - Artigos|
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|Fabrication of low-cost thermo-optic variable wave plate based on waveguides patterned on di-ureasil hybrids_10.1364OE.22.027159.pdf||2.21 MB||Adobe PDF|
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