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


文件中的檔案:

  1. 000270724600012.pdf