Reconfigurable opto-thermal graded-index waveguiding in bulk chalcogenide glasses

Optics Letters
Soroush ShabahangAyman F Abouraddy

Abstract

In the absence of suitable deposition processes, the fabrication of graded-index chalcogenide waveguides or fibers remains an outstanding challenge. Here, by exploiting the strong thermo-optic effect present in chalcogenide glasses, we experimentally demonstrate non-permanent optically-induced waveguides in bulk As<sub>2</sub>Se<sub>3</sub> rods using a 1.55 μm wavelength laser. This single-step process can be used not only to self-trap the writing beam, but also to guide another optical beam at a different wavelength in the opto-thermally inscribed waveguide channel. These results could pave the way towards harnessing nonlinear effects in graded-index chalcogenide guided settings.

References

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Jun 30, 2012·Optics Letters·Guangming TaoAyman F Abouraddy

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Citations

Sep 28, 2017·Physical Review Letters·Georgios G PyrialakosDemetrios N Christodoulides

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