红外与毫米波学报2024，Vol.43Issue(4)：497-502,6.DOI:10.11972/j.issn.1001-9014.2024.04.009
8.5 μm高性能长波红外量子级联激光器的光学腔面镀膜研究
Optical facet coatings for high-performance LWIR quantum cascade lasers at λ ∼ 8.5 μm
摘要
Abstract
We report on the performance improvement of long-wave infrared quantum cascade lasers(LWIR QCLs)by studying and optimizing the anti-reflection(AR)optical facet coating.Compared to the Al2O3 AR coat-ing,the Y2O3 AR coating exhibits higher catastrophic optical mirror damage(COMD)level,and the optical facet coatings of both material systems have no beam steering effect.A 3-mm-long,9.5-μm-wide buried-heterostruc-ture(BH)LWIR QCL of λ～8.5 μm with Y2O3 metallic high-reflection(HR)and AR of～0.2%reflectivity coating demonstrates a maximum pulsed peak power of 2.19 W at 298 K,which is 149%higher than that of the uncoated device.For continuous-wave(CW)operation,by optimizing the reflectivity of the Y2O3 AR coating,the maximum output power reaches 0.73 W,which is 91%higher than that of the uncoated device.关键词
量子级联激光器/长波红外/光学腔面镀膜/腔面光学灾变Key words
quantum cascade lasers/long-wave infrared/optical facet coatings/catastrophic optical mirror damage分类
数理科学引用本文复制引用
马源,林羽喆,万晨杨,王紫纤,周旭彦,张锦川,刘峰奇,郑婉华..8.5 μm高性能长波红外量子级联激光器的光学腔面镀膜研究[J].红外与毫米波学报,2024,43(4):497-502,6.基金项目
Supported by the National Natural Science Foundation of China(12393830) （12393830）
