[11p-S223-1~16] 13.8 Optical properties and light-emitting devices

[11p-S223-1] Analysis of Quantum Cascade Lasers using high thermal conductivity submounts

〇Tsutomu Kakuno¹, Rei Hashimoto¹, Kei Kaneko¹, Shinji Saito¹, Shigeyuki Takagi² (1.Toshiba, 2.Tokyo Univ. of Tech.)

Keywords:QCL

We present the analysis of thermal conduction of the Quantum Cascade Lasers (QCLs) using polycrystalline diamond materials as submounts.The submounts contribute to the thermal spread and the reduction of device temperature rising in our thermal simulations.The results of current-light output evaluation shows that the diamond submounts are effective to elevate the output power of the QCLs.