標題: | Thermal Properties of 12-Fold Quasi-Photonic Crystal Microcavity Laser With Size-Controlled Nano-Post for Electrical Driving |
作者: | Ho, Wei-De Lu, Tsan-Wen Hsiao, Yi-Hua Lee, Po-Tsung 光電工程學系 Department of Photonics |
關鍵字: | Electrically-driven structure;microcavity;nano-post fabrications;photonic crystal;semiconductor laser |
公開日期: | 1-十二月-2009 |
摘要: | In this report, we investigate the fabrication process of 12-fold quasi-photonic crystal microcavity with size-controlled nano-post beneath for electrically-driven structure by fine-tuning the wet-etching time. By finite-element method, we simulate and analyze the heat transfer behaviors of microcavities with different nano-post sizes and shapes. From the real devices, we obtain whispering-gallery (WG) single-mode lasing action with high measured quality factor of 8 250 and low threshold of 0.6 mW when the nano-post size is as large as 830 nm in diameter. By varying the substrate temperature, WG single-mode lasing action is still obtained when the substrate temperature is as high as 70 C. Besides, the lasing wavelength red-shift rate is also improved compared with the microcavity without nano-post beneath. By varying the pump condition, lasing action is still observed at room temperature when the pump duty cycle increases to 16.0%. Thus, for electrically-driven photonic crystal microcavity lasers, this nano-post can serve as current injection pathway and heat sink at the same time. |
URI: | http://dx.doi.org/10.1109/JLT.2009.2031501 http://hdl.handle.net/11536/6358 |
ISSN: | 0733-8724 |
DOI: | 10.1109/JLT.2009.2031501 |
期刊: | JOURNAL OF LIGHTWAVE TECHNOLOGY |
Volume: | 27 |
Issue: | 23 |
起始頁: | 5302 |
結束頁: | 5307 |
顯示於類別: | 期刊論文 |