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各向异性外腔微片Nd：YAG激光器调频回馈研究
  • ISSN号：1000-3290
  • 期刊名称：《物理学报》
  • 时间：0
  • 分类：O343.8[理学—固体力学;理学—力学] TN248.13[电子电信—物理电子学]
  • 作者机构：[1]清华大学精密测试技术与仪器国家重点实验室,北京100084
  • 相关基金：国家自然科学基金重点项目（批准号：60438010）资助的课题.
作者： 任成[1], 张书练[1]
关键词： 光回馈, 调频回馈, 各向异性外腔, 半波条纹数, optical feedback, frequency modulation optical feedback, anisotropic external cavity, fringe number within half wavelength
中文摘要：

研究了在各向异性外腔下微片Nd：YAG激光器调频回馈特性.作为对比,首先给出了在各向同性外腔下调频回馈结果,激光器输出功率的半波条纹数正比于外、内腔长度之比.在回馈外腔中内置一个四分之一波片,激光偏振态发生规律性跳变,每个纵模带宽内的偏振跳变次数正比于外、内腔长之比,相同外腔长下,回馈条纹再次倍频.进行了基于法布里-珀罗腔等效模型的理论分析,结果和实验相符合.此现象在精密测量领域有潜在应用.

英文摘要：

Optical feedback characteristics of frequency modulated microchip Nd： YAG lasers with anisotropic external cavity are investigated. With isotropic optical feedback, the modulation frequency of output intensity is proportional to the ratio of external cavity length to internal cavity length. With anisotropic optical feedback, the laser polarization periodically hops between two orthogonal directions with equal bandwidth. The times of polarization flipping in the longitudinal mode bandwidth is proportional to the ratio of external cavity length to internal cavity length, resulting in double frequency of original fringes. The theoretical analysis based on Fabry-Perot cavity equivalent model is in good agreement with the experimental results. The potential applications of this phenomenon in precision measurement are discussed.

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期刊信息
  • 《物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京603信箱(中国科学院物理研究所)
  • 邮编：100190
  • 邮箱：apsoffice@iphy.ac.cn
  • 电话：010-82649026
  • 国际标准刊号：ISSN：1000-3290
  • 国内统一刊号：ISSN：11-1958/O4
  • 邮发代号:2-425
  • 获奖情况:
  • 1999年首届国家期刊奖,2000年中科院优秀期刊特等奖,2001年科技期刊最高方阵队双高期刊居中国期刊第12位
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  • 被引量:49876