减反膜外腔半导体激光器特性的研究  

Experimental study on the properties of the AR-coated external cavity diode lasers

作　　者：刘四平[1] 张玉驰[1] 张鹏飞[1] 李刚[1] 王军民[1] 张天才[1] 

机构地区：[1]量子光学与光量子器件国家重点实验室,山西大学光电研究所,太原030006

出　　处：《物理学报》2009年第1期285-289,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10434080,60578018);基金委创新团队基金(批准号:60821004);国家重点基础研究发展计划(973)项目(批准号:2006CB921102);教育部重大项目培育计划;创新团队和山西省留学基金;明星计划资助的课题~~

摘　　要：研究了镀减反膜GaAs半导体激光器在Littrow式外腔结构中的输出特性.采用电流补偿技术,得到了约30GHz的连续无跳模调谐范围.利用外差拍探测技术获得激光器输出线宽约为120kHz.还研究了激光器的强度噪声分别随着电流与波长变化的特点并对此进行了分析.该类激光器可以广泛应用在冷原子物理、激光光谱以及量子光学等许多领域.The properties of the Anti-Reflection coated（AR-coated） GaAs diode lasers are investigated systematically in Littrow configuration.The tuning range of about 30 GHz is obtained without any mode-hops by the current compensation technique.Using a heterodyne detection technique,the linewidth of the AR-coated ECDL is measured,which is about 120 kHz.We also investigate the intensity noise of the AR-coated ECDL as a function of the current and the wavelength.The relations between the intensity noise of the ECDL and the driving current and wavelength are obtained and analyzed.This laser system can be used in many areas,such as atomic physics,laser spectroscopy and quantum optics,etc.

关 键 词：减反膜 半导体激光器 线宽 强度噪声 

分 类 号：TN248.4[电子电信—物理电子学] TN248