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Optical channel waveguide in chalcogenide (Ga:La:S) glass

Optical channel waveguide in chalcogenide (Ga:La:S) glass

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Published

A novel method for fabricating optical channel waveguides in Ga:La:S chalcogenide glass, through continuous wave direct UV laser writing (λ = 244 nm) is reported. Well-formed singlemode channel structures, with low propagation losses of 0.38 ± 0.05 dB/cm at 1.3 µm, were engineered using this technique.

Inspec keywords: gallium compounds; lanthanum compounds; optical fabrication; integrated optics; optical glass; optical losses; chalcogenide glasses; laser materials processing; optical planar waveguides

Other keywords: 0.38 dB; Ga2S3-La2S3-La2O3 chalcogenide glass; Ga2S3-La2S3-La2O3; 1.3 mum; continuous wave direct UV laser writing; single-mode channel structures; optical channel waveguides; 244 nm; low propagation losses

Subjects: Optical glass; Optical waveguides and couplers; Integrated optics; Optical fabrication, surface grinding; Laser materials processing; Integrated optics; Laser materials processing; Optical waveguides

References

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      • C. Gmachl , H.Y. Hwang , R. Paiella , D.L. Sivco , J.N. Baillargeon , F. Capasso , A.Y. Cho . Quantum cascade lasers with low-loss chalcogenide lateral waveguides. IEEE Photonics Technol. Lett. , 3 , 182 - 184
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      • M. Svalgaard , M. Kristensen . Directly UV written silica-on-silicon planar waveguideswith low loss. Electron. Lett. , 10 , 861 - 863
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