Volume 34 Issue 05
May  2008
Turn off MathJax
Article Contents
Ma Zongfeng, Zhang Chunxi, Wang Xiaxiao, et al. All-fiber laser radar at 1.55μm for speed measurement[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(05): 596-599. (in Chinese)
Citation: Ma Zongfeng, Zhang Chunxi, Wang Xiaxiao, et al. All-fiber laser radar at 1.55μm for speed measurement[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(05): 596-599. (in Chinese)

All-fiber laser radar at 1.55μm for speed measurement

  • Received Date: 14 May 2007
  • Publish Date: 31 May 2008
  • Strict optical alignment is essential for conventional coherent laser radar to match the local oscillator (LO) and signal modes. The scheme and system design of simple, continuous-wave (CW) coherent laser radar at 1.55 μm for speed measurement were presented. The system was based on all fiber instruments. A polarization-independent fiber-optic circulator and a Cassegrain telescope were used as the monostatic optical antenna. The fiber mixing technique of the receiver, the coupling efficiency between antenna and single-mode fiber (SMF) for spatial light, signal detection, digital data acquisition and processing were discussed. The experimental results indicate that the laser radar system has good robustness to random fluctuation noise of spatial light. In addition, the interference fringe visibility and the performance of the laser radar system are enhanced greatly. The speed resolution is less than 0.5mm/s, and the output nonlinearity of this laser radar is less than 0.1%.

     

  • loading
  • [1] Bruce M G, Chen Huailin, Li S X. Wind measurements with 355-nm molecular Doppler lidar[J]. Optics Letters, 2000, 25(17): 1231-1233 [2] Bruneau D. Mach-Zehnder interferometer as a spectral analyzer for molecular Doppler wind lidar[J]. Applied Optics, 2001, 40(3): 391-399 [3] Ridley K D, Pearson Guy N, Michael H. Improved speckle statistics in coherent differential absorption lidar with in-fiber wavelength multiplexing[J]. Applied Optics, 2001, 40(12): 2017-2023 [4] Pearson G N, Ridley K D, Willetts David V. Chirp pulse compression three dimensional lidar imager with fiber optics[J]. Applied Optics, 2005, 44(2): 257-265 [5] Takenaka T, Tanaka K, Fukumitsu O. Optical heterodyne detection of an Airy signal field with a Gaussian local oscillator field Kamerman G W. Select Papers on Laser Radar. Washington: SPIE, 1997: 419-425 [6] 马宗峰, 张春熹, 高爽, 等.相干激光雷达接收机混频效率[J]. 光学技术, 2006, 32(增刊): 377-379 Ma Zongfeng, Zhang Chunxi, Gao Shuang, et al. Mixing efficiency in coherent lidar receiver[J]. Optical Technique, 2006, 32(Suppl): 377-379(in Chinese) [7] Donald K J, Martin B M, Bradley D D. Heterodyne ladar system efficiency enhancement using single mode optical fiber mixers[J]. Optical Engineering, 1995, 34(11): 3122-3129 [8] Weyrauch T, Vorontsov M A, Gowens J W, et al. Fiber coupling with adaptive optics for free-space optical communication Voelz D G, Ricklin J C. Free-Space Laser Communication and Laser Imaging. Washington: SPIE, 2002: 177-184 [9] McGrath A. An Erbium: glass coherent laser radar for remote sensing of wind velocity . Australia: The Flinders University of South Australia, 1998 [10] 江志红, 袁俊泉, 王展, 等. 一种新的多频连续波雷达数据采集系统设计[J]. 现代雷达, 2006, 28(3): 51-54 Jiang Zhihong, Yuan Junquan, Wang Zhan, et al. A new design of multifrequency radar data acquisition system[J]. Modern Radar, 2006, 28(3): 51-54(in Chinese)
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(3353) PDF downloads(1667) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return