Shen Zhenmin, Liu Hongying, Lan Tian, Li Shaohui, Ni Guoqiang, Liu Haojie. Dispersion and compensation of femtosecond laser pulses in the atmosphere[J]. Infrared and Laser Engineering, 2013, 42(4): 940-946.
| Citation:
|
Shen Zhenmin, Liu Hongying, Lan Tian, Li Shaohui, Ni Guoqiang, Liu Haojie. Dispersion and compensation of femtosecond laser pulses in the atmosphere[J]. Infrared and Laser Engineering, 2013, 42(4): 940-946.
|
Dispersion and compensation of femtosecond laser pulses in the atmosphere
- 1.
Key Laboratory of Photoelectronic Imaging Technology and System,Ministry of Education of China,Beijing Institute of Technology,Beijing 100081,China;
- 2.
China Academy of Space Technology,Beijing 100094,China
- Received Date: 2012-08-10
- Rev Recd Date:
2012-09-15
- Publish Date:
2013-04-25
-
Abstract
Satellite femtosecond laser ranging can theoretically achieve the ranging accuracy in the order of submicron, but femtosecond laser pulse duration broadening caused by the dispersion when it propagates in the atmosphere significantly makes the ranging accuracy decreased. To compensate the dispersion, the dispersion amount of femtosecond laser was calculated in the atmosphere. The group velocity dispersion formula and pulse duration broadening formula of femtosecond laser pluses in the atmosphere were derived. The results show that laser pulse broadening is determined by the group velocity dispersion and the propagation distance. Also shows that the dispersion is much larger when the pulse duration is much smaller under the same center wavelength, and the dispersion is much larger when the center wavelength is much smaller under the same pulse duration. Calculate the group delay, the group velocity dispersion and the three order dispersion in the atmosphere and BK7. The satellite femtosecond laser ranging system should adopt femtosecond laser with a longer center wavelength of 1 550 nm, and the pulse duration should be properly selected. Because femtosecond laser pulses have large dispersion when it transfers in the atmosphere, the dispersion compensation method is given by using single mode fiber sequence for the coarse compensation and grating pairs for the fine compensation.
-
References
|
[1]
|
Minoshima K, Matsumoto H. High-accuracy measurement of 240-m distance in an optical tunnel by use of a compact femtosecond laser[J]. Applied Optics, 2000, 39(30): 5512-5517. |
|
[2]
|
|
|
[3]
|
|
|
[4]
|
Ye J. Absolute measurement of a long, arbitrary distance to less than an optical fringe[J]. Optics Letters, 2004, 29(10): 1153-1155. |
|
[5]
|
Joo K N, Kim S W. Absolute distance measurement by dispersive interferometry using a femtosecond pulse laser[J]. Optics Express, 2006, 14(13): 5954-5960. |
|
[6]
|
|
|
[7]
|
|
|
[8]
|
Lee J, Kim Y J, Lee K, et al. Time-of-flight measurement with femtosecond light pulses[J]. Natural Photonics, 2010, 4(10): 716-720. |
|
[9]
|
|
|
[10]
|
Lee S H, Lee J, Kim Y-J, et al. Active compensation of large dispersion of femtosecond pulses for precision laser ranging[J]. Optics Express, 2011, 19(5): 4002-4008. |
|
[11]
|
Liang Quanting. Physical Optics[M]. Beijing: Mechanical Industry Press, 1980. (in Chinese) 梁铨廷. 物理光学[M]. 北京: 机械工业出版社, 1980. |
|
[12]
|
|
|
[13]
|
|
|
[14]
|
She Shouxian. Physical Basis of Wave Guilding Optics[M]. Beijing: North Jiaotong University Press, 2002: 427-432. (in Chinese) 佘守宪. 导波光学物理基础[M]. 北京: 北方交通大学出版社, 2002: 427-432. |
|
[15]
|
Lin Xuling, Zhou Feng, Zhang Jianbin, et al. High power wideband terahertz sources based on fomtosecond facility[J]. Infrared and laser Engineering, 2012, 41(1): 116-118. (in Chinese) |
|
[16]
|
|
|
[17]
|
Marini J W, Murrey C W. Correction of laser range tracking data for atmospheric refraction at elevations above 10 degrees[J]. Goddard Space Flight Center, Greenbelt MD NASA Tech Rep, 1973: X-591-73-351. |
-
-
Proportional views
-
DownLoad: