Abstract: An integrated optical transceiver, comprising a laser component, comprising an array of VCSEL diodes formed on a laser diode substrate; a laser driving component, comprising laser diode driving circuitry formed on a laser driving circuitry substrate; a photodiode component, comprising an array of photodiodes formed on a photodiode substrate; and a photodiode driving component, comprising photodiode driving circuitry formed on a photodiode driving circuitry substrate; a first heat sink comprising a connected piece of material to transport excess heat away from the integrated optical transceiver and connected to both the laser and photodiode driving components; and an electrically insulating material separating the photodiode substrate from the first heat sink and being air or dielectric material with a relative dielectric constant ?<10, wherein the electrically insulating material provides a gap having an effective electrical distance of at least 80 ?m between the photodiode substrate and the first heat si

Abstract: A waist belt for an absorbent article has an inner surface facing the wearer during use and an outer surface facing away from the wearer during use. The belt includes a first belt end section provided with a fastening component and a second belt end section provided with a mating fastening component. Each one of the fastening component and the mating fastening component includes a first mechanical connector structure and a second mechanical connector structure. Each mechanical connector structure is capable of forming a mechanical interconnection with the other mechanical connector structure, and is incapable of forming a mechanical interconnection with an identical structure. Further, the fastening component and the mating fastening component are mechanically connectable via the first mechanical connector structure and the second mechanical connector structure. The disclosure also relates to a disposable article including a chassis and a waist belt.