標題: | Mode Switching of High Index Contrast Photonic Crystal Surface Emitting Lasers |
作者: | Hong, Kuo-Bin Yang, Chun-Chieh Lu, Tien-Chang 光電工程學系 Department of Photonics |
關鍵字: | GaAs;photonic crystals;guided waves |
公開日期: | 五月-2016 |
摘要: | This paper investigates the phenomenon of mode switching for GaAs-based high index contrast photonic crystal surface emitting lasers (PCSELs) with deeply etched air holes. The room-temperature lasing characteristics and angular resolved photoluminescence spectra of PCSELs show that the lasing mode would change from the fundamental guided mode to a high-order guided mode as the filling factor (FF) increased, resulting from the diffraction of deeply etched semiconductor/air arrays with high index contrast. Higher order guided modes could coherently couple out of photonic crystal and would significantly influence the laser output of PCSELs with a larger air FF, leading to rich far-field characteristics. |
URI: | http://dx.doi.org/10.1109/JQE.2016.2545399 http://hdl.handle.net/11536/133635 |
ISSN: | 0018-9197 |
DOI: | 10.1109/JQE.2016.2545399 |
期刊: | IEEE JOURNAL OF QUANTUM ELECTRONICS |
Volume: | 52 |
Issue: | 5 |
顯示於類別: | 期刊論文 |