Thermal properties of sapphire-bonded photonic crystal defect lasers
|關鍵字:||光子晶體雷射;熱特性;Photonic crystal laser;Thermal properties|
Photonic crystal (PhC) defect cavities attracted much attention of scientist because of its ability to confine light within a tiny region even sub-wavelength scale. A PhC defect cavity which owns high quality factor and small mode volume has much potential for being a high efficient light source. However, amount of heat accumulation occur simultaneously when light is confined in a dense area. For future application, photonic integrated circuit for example, a continuous-wave (CW) operated laser source is one of significant devices, and it might be destroyed by the heat accumulation that generate during CW operation. To solve the heat accumulation problem, sapphire which has higher thermal conductivity than air is introduced to be the material of substrate. In this thesis, CW operated sapphire-bonded PhC defect lasers are introduced and characterized by simulation and experiment. By comparing with suspended PhC defect lasers, the superior thermal properties of sapphire-bonded devices are also illustrated.