Abstract: A process for manufacturing by moulding an optical component includes at least the following steps: a step of providing at least one mould, during which a glass profile is provided, said glass profile including a doping according to a predetermined geometry and having a refractive index profile depending on said doping and including at least an end including at least a structuring obtained by chemically etching of said doping, said structuring forming said at least one mould, and a moulding step, during which at least a moulding material suitable for forming at least an optical component is provided and arranged in said mould in order to shape said optical component.