Compact OCDMA encoders based on the antisymmetric waveguide Bragg grating

Optical code-division multiple-access (OCDMA) networks require simple encoders/decoders enabling the integration of optical devices for further development. In this letter, we use silica-on-silicon antisymmetric waveguide Bragg grating devices to demonstrate compact and versatile OCDMA encoder/decoders. These devices use mode conversion to perform all-optical functions on chip.