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Hybrid glass substrates for waveguide device manufacture



Samuel D. Conzone, Joseph S. Hayden, David S. Funk, Alexana Roshko, D. L. Veasey


Hybrid glass substrates composed of active (ER/Yb co-doped) and passive phosphate glass were prepared by a novel, low temperature joining process. The resulting hybrid substrates are chemically and physically robust; they can be cut, ground and polished by conventional, water-based techniques. The entire substrate can be immersed in a molten salt bath to simultaneously produce waveguides in the active and passive regions. A low reflectance of -35 + 2dB was measured at the joint interface with 1531.2 nm light by optical low coherence reflectometry. Further, a hybrid laser waveguide device exhibited a slope efficiency of 33% at 1540 nm, when pumped at 975 nm.
Optics Letters


Er/Yb doped phosphate glass, hybrid glass substrates, hybrid laser, low temperature joining, waveguide device, waveguide laser


Conzone, S. , Hayden, J. , Funk, D. , Roshko, A. and Veasey, D. (2001), Hybrid glass substrates for waveguide device manufacture, Optics Letters, [online], (Accessed June 21, 2024)


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Created April 14, 2001, Updated October 12, 2021