Packaging for a fiber laser includes a conduit surrounding the fiber laser and a thermally conductive compound filling a gap between the fiber laser and the conduit setting the fiber laser within the conduit. The fiber laser may have a substantially circular first cross section having a first diameter and the conduit may have a substantially circular second cross section having a second diameter larger than the first diameter of the fiber laser. The conduit may have a splice window cut out from a wall of the conduit and optical potting compound may fix a portion of the fiber laser under the splice window.