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| 改善外腔半导体激光器调谐特性的新方法 | |
| 引用本文： | 徐惠真,邱怡申,徐斌.改善外腔半导体激光器调谐特性的新方法[J].应用光学,2008,29(6):975-977. |
| 作者姓名： | 徐惠真 邱怡申 徐斌 |
| 作者单位： | 1. 集美大学,理学院,福建,厦门,361021 2. 福建师范大学,物理与光电信息科技学院,福建,福州,350007 3. 厦门大学,物理与机电工程学院,福建,厦门,361005 |
| 摘 要： | 基于原有的Littman结构外腔半导体激光器，提出采用一种新的光学方法来实现波长调谐。该方法采用了包含一个旋转楔形棱镜的“光杠杆”系统来降低调谐的机械要求，提高波长选择精度。通过选择不同的楔形棱镜顶角和光线入射角，机械要求可以降低1～2个数量级，波长选择精度也得到相同量级的提高。该方法使Littman结构外腔半导体激光器的调谐特性得到极大的改善，并大大降低了震动的敏感性。 |
| 关 键 词： | 外腔半导体激光器 波长调谐 闪耀光栅 |
| 收稿时间： | 2008/5/7 |
Wavelength tuning characteristic improvement of external cavity diode lasers |
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| XU Hui-zhen,QIU Yi-shen,XU Bin.Wavelength tuning characteristic improvement of external cavity diode lasers[J].Journal of Applied Optics,2008,29(6):975-977. | |
| Authors: | XU Hui-zhen QIU Yi-shen XU Bin |
| Institution: | 1.School of Science, Jimei University, Xiamen 361021, China; 2.School of Physics and Optoelectronics Technology, Fujian Normal University, Fuzhou 350007, China; 3.School of Physics and Electrical and Mechanical Engineering, Xiamen University, Xiamen 361005, China |
| Abstract: | On the basis of the traditional Littman external cavity diode laser,a novel optical method for wavelength tuning is proposed. A “refractive optical lever” system which consists of a rotating optical wedge prism is employed to reduce the requirement of the rotation mechanism for tuning and improve the accuracy of wavelength selection. By optimizing the vertex angle of the wedge prism and the incident angle of the light ray,the requirement of the rotation mechanism can be reduced by one or two orders of magnitude,and the wavelength selection accuracy can be improved as well. The characteristics of external cavity diode lasers are improved and its sensitivity to the vibration is reduced. |
| Keywords: | external cavity diode laser wavelength tuning blazed grating |
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