Design of transmitting optical antenna of a terrestrial line-sight optical communication

Jian-wen Chen; Zi-li Liu; Zai-lu Huang

doi:10.1117/12.674228

9 June 2006 Design of transmitting optical antenna of a terrestrial line-sight optical communication

Jian-wen Chen, Zi-li Liu, Zai-lu Huang

Proceedings Volume 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 614914 (2006) https://doi.org/10.1117/12.674228
Event: 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2005, Xian, China

Abstract

By using the Gaussian light beam approximation and from the viewpoint of mode matching, the optical coupling theory between single mode fiber and optical antenna, which is based on the matrix optical theory and the ABCD law, is employed to present a universal designing method for transmitting optical antenna of a terrestrial line-sight optical communication system .The physical meaning and choosing method with its relative parameter are also discussed in detail, and an experimental example of the transmitting optical antenna for a terrestrial line-sight optical communication system is given as well. Through the testing of the designed transmitting optical antenna with the help of a laser light beam analysis instrument, the incident Gaussian light beam waist spot radius is 4.7μm, while the divergence angles of the transmitting Gaussian light beam in the two perpendicular directions are 1.9mrad and 1.5mrad, respectively, which can almost agree with the parameters of the designing theory above. In the end, the possibility of improving the quality of transmitting optical antenna and the reliability of space optical communication through applying technologies such as converting the elliptical Gaussian light beam into the round Gaussian light beam, the plane coupling into the spherical coupling and film-plating the optical antenna etc is discussed.

Citation Download Citation

Jian-wen Chen, Zi-li Liu, and Zai-lu Huang "Design of transmitting optical antenna of a terrestrial line-sight optical communication", Proc. SPIE 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 614914 (9 June 2006); https://doi.org/10.1117/12.674228

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