Abstract
Low loss, single mode waveguides in fused silica have been formed by implantation with 5 MeV Ge ions. The implanted region was characterized by an increase in refractive index of ∼ 1.1%. The distribution of Ge as a function of depth showed a peak concentration of 3.9 mole % at a dose of 8 × 1016 Ge/cm2. This concentration profile of Ge was thermally stable to a temperature of ≥ 850°C. For doses in the range of 8 × 1014-8 × 1015 Ge/cm2, the loss coefficient, α, was 1.0 dB/cm for the as-implanted waveguides and 0.10-0.15 dB/cm following annealing at 500°C measured at a wavelength of 1.3 μm.
| Original language | English |
|---|---|
| Pages (from-to) | 442-446 |
| Number of pages | 5 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
| Volume | 106 |
| Issue number | 1-4 |
| DOIs | |
| Publication status | Published - 2 Dec 1995 |
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