Far-field correlation of bidirectional tracking beams due to wave-front deformation in inter-satellites optical communication links.

In some applications of optical communication systems, such as inter-satellites optical communication, the correlation of the bidirectional tracking beams changes in far-field as a result of wave-front deformation. Far-field correlation model with wave-front deformation on tracking stability is established. Far-field correlation function and factor have been obtained. Combining with parameters of typical laser communication systems, the model is corrected. It shows that deformation pointing-tracking errors θ(A) and θ(B), far-field correlation factor δ depend on RMS of deformation error rms, which decline with a increasing rms including Tilt and Coma. The principle of adjusting far-field correlation factor with wave-front deformation to compensate deformation pointing-tracking errors has been given, through which the deformation pointing-tracking error is reduced to 18.12″ (Azimuth) and 17.65″ (Elevation). Work above possesses significant reference value on optimization design in inter-satellites optical communication.

[1]  M. Toyoshima,et al.  Mutual alignment errors due to the variation of wave-front aberrations in a free-space laser communication link. , 2001, Optics express.

[2]  Akio Yamamoto,et al.  Engineering model test of LUCE (Laser Utilizing Communications Equipment) , 1996, Photonics West.

[3]  Isaac I. Kim,et al.  Lessons learned for STRV-2 satellite-to-ground lasercom experiment , 2001, SPIE LASE.

[4]  Yu Si-yuan.  Methods of Improving Acquisition Probability of Scanning in Intersatellite Optical Communications , 2005 .

[5]  Toshihiko Yamawaki,et al.  Completion of Optical Inter-Orbit Communications Engineering Test Satellite (OICETS) , 2006 .

[6]  Eric Perez,et al.  Simulation model and on-ground performances validation of the PAT system for the SILEX program , 1991, Photonics West - Lasers and Applications in Science and Engineering.

[7]  Andreas Mauroschat.  Reliability analysis of a multiple-laser-diode beacon for intersatellite links , 1991, Photonics West - Lasers and Applications in Science and Engineering.

[8]  Lingyu Wan,et al.  Mutual alignment errors due to wave-front aberrations in intersatellite laser communications. , 2005, Applied optics.

[9]  Rodrigo J. Noriega-Manez,et al.  Rytov theory for Helmholtz-Gauss beams in turbulent atmosphere. , 2007, Optics express.

[10]  V.W.S. Chan,et al.  Optical space communications , 2000, IEEE Journal of Selected Topics in Quantum Electronics.

[11]  Jing Ma,et al.  Analytical expression and optimization of spatial acquisition for intersatellite optical communications. , 2011, Optics express.

[12]  V. Mahajan.  Zernike annular polynomials for imaging systems with annular pupils , 1984 .

[13]  Shinhak Lee,et al.  Development of a lasercom testbed for the pointing, acquisition, and tracking subsystem of satellite-to-satellite laser communications link , 2008, SPIE LASE.

[14]  J. Y. Wang,et al.  Wave-front interpretation with Zernike polynomials. , 1980, Applied optics.

[15]  Shutian Liu,et al.  Generation of hollow Gaussian beams by spatial filtering. , 2007, Optics letters.

[16]  F. Heine,et al.  5.625 Gbps bidirectional laser communications measurements between the NFIRE satellite and an Optical Ground Station , 2011, 2011 International Conference on Space Optical Systems and Applications (ICSOS).

[17]  A. Siegman,et al.  Analysis of laser beam quality degradation caused by quartic phase aberrations. , 1993, Applied optics.