Patent ID: 8073028

Claim:
A light emitting apparatus comprising: a surface emitting laser having plural individual electrodes disposed on an upper surface thereof and a common electrode disposed on a lower surface thereof; and a ceramic package having an opening portion and a metal mount portion disposed on a bottom surface of the opening portion for mounting the surface emitting laser, wherein the common electrode of the surface emitting laser is electrically connected with the mount portion, the ceramic package including a first back-surface electrode disposed at an edge on a back surface of the ceramic package, and a back-surface heat-dissipating electrode disposed at a center portion of the back surface of the ceramic package, wherein the mount portion, to which the common electrode is electrically connected, is electrically connected to a second back-surface electrode disposed at the edge on the back surface of the ceramic package via a common electrode lead, the second back-surface electrode being connected to ground, wherein the mount portion is also thermally connected to the back-surface heat-dissipating electrode via a penetrating electrode that penetrates the ceramic package between the bottom surface of the opening portion and the back surface of the ceramic package, wherein a plurality of the penetrating electrodes are provided below an area of the mount portion where the surface emitting laser is not mounted, and wherein each of the penetrating electrodes is spaced apart from the surface emitting laser by 0.2 mm or more in plan view.