The electronic package contains an electronic component or components generating and/or receiving light-based signals, an optical element or elements for transceiving the signals and a housing encapsulating the electronic component or components. According to the invention the optical elements for transceiving the signals are diffractive/refractive optical elements (D/ROEs), which are also part of a sealing device for the housing. Accordingly, the diffractive/refractive optical elements (D/ROEs) have both optical and sealing functions.