期刊文献+

一种可降低Littman-Metcalf光栅外腔半导体激光器衍射损耗的结构设计 被引量:1

Optimal design for reducing diffraction loss of Littman-Metcalf grating external cavity semiconductor laser
下载PDF
导出
摘要 基于原有Littman-Metcalf型光栅外腔半导体激光器的工作原理,设计了一种可以降低衍射损耗的外腔结构。在Littman-Metcalf结构的基础上增加一个反射镜,将闪耀光栅二次衍射产生的零级衍射光反馈回半导体激光器本征腔。推导了新结构模型外腔损耗的表达式,通过等效腔的概念对两种结构激光器的外腔损耗、阈值电流、输出线宽以及输出功率进行了仿真分析。结果表明:将二次衍射产生的零级光反馈回有源区可有效降低Littman-Metcalf结构激光器的外腔损耗,提高了系统的耦合效率,从而降低阈值电流,提高了激光器的输出功率。同时,由于提高了外腔反射效率,该外腔结构进一步压窄激光器的输出线宽。对影响低损耗Littman-Metcalf外腔激光器输出线宽以及输出功率的因素(端面反射率、内外腔长、闪耀光栅衍射效率以及反射镜反射率等)也进行了仿真分析,为后期激光器制作提高了理论指导。 Based on the working principle of Littman-Metcalf type grating external cavity semiconductor laser,an external cavity structure which can reduce diffraction loss is designed. Based on the Littman-Metcalf structure,a reflector is added to feed back the zero-order diffraction light generated by the secondary diffraction of the shining grating to the intrinsic cavity of the semiconductor laser. The expression of the external cavity loss of the new structure model is derived, and the external cavity loss, threshold current, output line width and output power of the two laser structures are simulated by the concept of equivalent cavity. The results show that the zero-order light fed back to the active region can effectively reduce the external cavity loss of the Littman-Metcalf structure laser and improve the coupling efficiency of the system, thus reducing the threshold current and improving the output power of the laser. At the same time, the output linewidth of the laser is further narrowed by improving the reflection efficiency of the external cavity. The factors affecting the output linewidth and output power of low loss Littman-Metcalf external cavity laser(end reflectivity, internal and external cavity length, blazed grating diffraction efficiency and mirror reflectivity) are also simulated and analyzed. It improves the theoretical guidance for the later laser production.
作者 周平 吴永前 张蓉竹 Zhou Ping;Wu Yongqian;Zhang Rongzhu(College of Electronic Information,Sichuan University,Chengdu 610065,China;Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu 610209,China)
出处 《红外与激光工程》 EI CSCD 北大核心 2023年第1期92-98,共7页 Infrared and Laser Engineering
关键词 外腔反馈 外腔损耗 阈值电流 外腔半导体激光器 线宽 external cavity feedback external cavity loss threshold current external cavity diode lasers line width
  • 相关文献

参考文献6

二级参考文献35

  • 1江鹏飞,周燕,谢福增.闪耀光栅外腔反馈压窄半导体激光器线宽技术的研究[J].光学技术,2006,32(6):869-870. 被引量:5
  • 2葛剑虹,项震,刘崇,陈军.外腔半导体激光器的空间模式特性分析[J].中国激光,2006,33(12):1601-1604. 被引量:5
  • 3苏宙平,楼祺洪,董景星,周军,魏运荣.激光二极管阵列的窄线宽、可调谐输出[J].中国激光,2007,34(6):751-754. 被引量:10
  • 4William C Stone, Maris Juberts, Nick Dagalakis. Performance Analysis of Next-Generation LADAR for Man ufacturing, Construction, and Mobility [ R ]. NIST Report, NISTIR- 7117 National Institute of Standards and Technology, 2004.
  • 5Barry L Stann, Mark Giza. A scannerless imaging ladar using a laser diode illuminatou and FM/cw radar principles for submunition application[J].SPIE, 2004,35:192-203.
  • 6王兆欣 辛德胜 张剑家.半导体激光距离图像处理技术的研究.测试技术学报,2006,20:203-207.
  • 7李利平 熊桂生 陈景标.首批系列化国产外腔半导体激光器.光学学报,2008,28(1):54-60.
  • 8Bob Shine. Tunable diode lasers stand up to research and commercial applications [J]. Photonics Spectra, 1999, 33(1): 102-105.
  • 9B. Mroziewicz. External cavity wavelength tunable semiconductor laser-a review [J]. Opto-Electronics Review, 2008, 16(4) : 347-366.
  • 10管桦,黄贵龙,黄学人,郭彬,舒华林,高克林.基于Littrow结构的可调谐半导体激光器[J].中国激光,2007,34(1):33-36. 被引量:10

共引文献26

同被引文献4

引证文献1

二级引证文献6

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部