Answers are grounded in this paper and cite their sources.
A Bragg grating was fabricated in a D-shaped fiber that was subsequently coated with an alpha-Si:H semiconductor film. The reflected spectrum was optically controlled by means of evanescent coupling, shifting to shorter wavelengths with increased control-light power. The effective nonlinearity of the fiber was 2.0 x 10(-10) cm(2)/W . The device was optically tuned by 4.3 x 10(-4) nm/mW , leading to 54% (>3-dB) depth modulation for 230 mW of power.
No takes yet. Share an insight, caveat, or question.
Ribeiro et al. (1999) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: