Patent ID: 7113686

Claim:
An optical circuit enclosure enclosing at least one optical circuit or optical circuit component; the said enclosure comprising: a tray-type container containing at least one circuit or components, a tray-type closure member having a base with an external surface and arranged with the external surface covering the container, the closure member carrying on the opposite side thereof from the container at least one further optical circuit component for connecting the enclosed circuit or component to an external circuit or component, and sealing means providing a moisture-resistant seal between the container and the closure member; wherein the sealing means provides a moisture resistant seal between the container, the closure member and fibre optic connecting cables exiting an enclosed region of the container from the enclosed circuit or component; and wherein the sealing means comprises a pair of sealing strip members and the optical fibres are located between the sealing strip members and sealed to the sealing strip members by the application of heat and/or pressure.