Table 1 Parameters related to fabrication techniques.

From: Hacking continuous-variable quantum key distribution using the photorefractive effect on proton-exchanged/annealed-proton-exchanged waveguide

Techniques

A

(\(\times 10^{-7} \textrm{cm}^2/\textrm{W}\))

B

(\(\times 10^{-3} \textrm{cm}^2/\textrm{W}\))

\(\kappa\)/a

(\(\times 10^{-6}\))

Ti-diffused

(\(\lambda _\textrm{ir}\)=633 nm)

\(1595\pm 56\)

\(342\pm 27\)

\(2.8\pm 0.3\)

Proton-exchanged

(\(\lambda _\textrm{ir}\)=488 nm)

\(0.9 \pm 0.1\)

\(0.4 \pm 0.1\)

\(10.6 \pm 7.2\)

Annealed-proton-exchanged

(\(\lambda _\textrm{ir}\)=488 nm)

\(6.6 \pm 0.4\)

\(6.1 \pm 3.2\)

\(1.1 \pm 0.9\)

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