846nm半导体激光器线宽压窄的研究  

Research on Narrow Line Width External Cavity 846 nm Semiconductor Laser

作　　者：苏展 何世均 沈乃瀓[2] 于闯[3] 

机构地区：[1]河南省自动化工程技术研究中心,郑州450008 [2]中国科学院物理研究所,北京100080 [3]北京大学信息科学技术学院,北京100081

出　　处：《北京交通大学学报》2007年第6期42-45,共4页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

摘　　要：研制了用于倍频蓝光的单模、可调谐的窄线宽光栅外腔反馈半导体激光器,它是由激光器底座、激光管组件、准直透镜组件和光栅组成.经过精密控制电流和温度,利用光栅反馈可获得激光单纵模输出,外腔的结构还使输出光的谱线宽度得以压窄.对研制的半导体激光器的特性测试表明,其输出功率稳定,阈值变小,模式单一稳定,波长可调谐,谱线宽度小于1 MHz.A single narrow line width tunable external cavity feedback semiconductor used in frequency doubling blue light is proposed. It is constructed with laser base, laser tube, collimation system, and optical grating. Via the current and temperature precise control, It is selected the mode of semiconductor laser used in the feedback of grating. The structure of external cavity makes the spectral line width of output light to be narrowed. Thus a single longitudinal mode, narrow spectral line width and stable frequency external cavity semiconductor laser is realized, and its spectral line width is compressed to be less than 1 MHz.

关 键 词：激光技术 外腔半导体激光器 外腔光栅反馈 单纵模 窄线宽 

分 类 号：TN248.4[电子电信—物理电子学]