High-temperature distributed feedback quantum cascade lasers with wide tuning range wavelength

摘要：

In this paper, high performance of distributed feedback quantum cascade lasers operation at 7.7μm and 8.4 μm have been investigated. With a broad gain spectrum, the DFB QCLs employing different grating periods exhibit a wavelength span of 0.17μm at room temperature and total wavelength coverage of 0.33μm at various heatsink temperatures. For the 8.4μm DFB-QCLs with a high side mode suppression ratio of about 30dB, a low threshold current density of 1.73kA/cm2 at 300K and a high operating temperature of 420K are achieved in pulsed mode. The DFB-QCLs emission at 7.7μm have been successfully used in N2O absorption line detection.

作者: Lin Wei Yao-yao Li Ai-zhen Li Gang-Yi Xu Yong-gang Zhang

作者单位: State Key Laboratory of Functional materials for Informatics, Shanghai Institute of Microsystem and Information technology,Chinese Academy of Sciences, shanghai 200050, China

会议类型: 国际会议

会议名称: 2008亚洲光纤通讯与光电博览会暨国际会议(Asia Optical Fiber Communication & Optoelectronic Ezposition & Conference)

会议地点: 上海

会议语种:英文

页码: 1-3

在线出版日期: 2008-10-30（万方平台首次上网日期，不代表论文的发表时间）