The present invention provides methods for fabricating interferometric fiber optic transceivers having integrated components in which a polymer-on-silicon and beam splitter module replaces the conventional LiNbO.sub.3 crystal. The polymer-on-silicon waveguides permit the hybridization of the transceiver and its semi-automated production by semi-conductor processing equipment.It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of the claims.