| 摘要 |
PURPOSE:To obtain a semiconductor laser diode in which thermal crosstalk is suppressed between light emitting regions in a semiconductor laser array without complicating the assembling process. CONSTITUTION:A heat sink 2 for semiconductor laser has such structure as a plurality of dielectric material layer 2a, 2b having high and low thermal conductivities, respectively, are laminated alternately in the arranging direction of a plurality of light emitting stripe regions 4a, 4b, 4c of a semiconductor laser to be mounted. A semiconductor laser chip 3 is mounted on the heat sink 2 such that at least one dielectric material layer 2b having low thermal conductivity is arranged between respective light emitting stripe regions. |
