| 赵旺鹏,王海龙,龚谦,严进一,高金金,荣春朝.可调谐双波长半导体外腔激光器性能研究[J].光电子激光,2016,27(7):716~721 |
| 可调谐双波长半导体外腔激光器性能研究 |
| A stable dual-mode tunable semiconductor laser based on external cavity feedbac k |
| 投稿时间：2016-01-03 |
| DOI： |
| 中文关键词: 激光器外腔 可调谐 双模 等功率输出 |
| 英文关键词:external cavity tunable dual-mode laser equal power output |
| 基金项目:山东省自然科学基金(ZR2014FM011)和信息功能材料国家重点实验室开放基金(SKL201307) 资助项目 (1.曲阜师范大学 物理系,山东省激光偏光与信息技术重点实验室,山东 曲阜 273165； 2.中科院上海微系统与信息技术研究所 信息功能材料国家重点实验室,上海 200050) |
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| 中文摘要: |
| 提出并实现了利用笼式共轴搭建的傅里叶变换外 腔结构(FTECS)产生大范围电流下双模式强度保持相等 的双波长激光器,通过改变电流实现输出功率连续可调的双模输出,可以作为混频太赫兹(THz)源的种 子源,对多波长脉冲设备的研究有借鉴意义。实验结果表明,在阈值电流8mA之上从1.45Ith到3.85Ith 范围内,用压电陶瓷推动镀金条镜改变反馈,实现了间距1THz的双模输出, 双模式峰值强度差值小于 0.07dB,边模抑制比(SMSR)可以达到 30dB以上。进一步研究了双模式的峰值强度与条镜位置和激光器电 流变化之间的关系,对后续小型化结构设计相关可快速调谐性和稳定性等参考。 。 |
| 英文摘要: |
| In this paper,a dual-mode semiconductor laser,of which the dual modes have equal peak intensity,is demonstrated.This laser is based on Fourier transform external ca vity structure (FTECS) which is fabricated using the coaxial cage.It is possible to real ize continuous tuning power output and can be used as seed source of terahertz (THz) wave sourc e in frequency mixing,and this study is of great significance for the study of multi-wavelengt h optical pulse equipment.The experimental results show that in a wide range of injected curren t from 1.45Ith to 3.85Ith,which are above the threshold cruuent of 8mA,the laser generates dual-mode output with gap of 1THz under the condit ion of closely moving mirror using piezoceramics.In this way ,the side-mode suppression ratio (SMSR) of two peaks can reach more tha n 30dB,and the difference of two peak intensities is no more than 0.07dB.We al so further research the relationship of the peak intensity of dual modes with the position of striped mirror and injected current.This stud y has a great significance on the design of miniaturization structure in the future on the rel ated fast tuning,structural stability and so on. |
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