Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Shengqian Mao"'
Publikováno v:
Optics express. 28(12)
The ray transfer matrix method is widely used for analyzing beam-transmission properties and designing multi-pass systems. In this paper, a modified ray transfer matrix method is proposed for tracing an accurate non-sequential ray in three-dimensiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd7e7809190ef4696222f9e53c6a3a46
https://pubmed.ncbi.nlm.nih.gov/32679977
https://pubmed.ncbi.nlm.nih.gov/32679977
Publikováno v:
Optics express. 28(10)
In this paper, the propagation properties of the Laguerre-Gaussian (LG) beam passing through Cassegrain antenna system in a turbulent atmosphere have been researched. The accurate analytical function for the diffraction field of LG beam passing throu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df8e15372a37958e445ba8e0cb993331
https://pubmed.ncbi.nlm.nih.gov/32403484
https://pubmed.ncbi.nlm.nih.gov/32403484
Autor:
Shengqian Mao, Biao Cao, Miaofang Zhou, Weinan Caiyang, Yan Qin, Renxuan Liu, Huajun Yang, Ping Jiang
Publikováno v:
Applied optics. 59(12)
With the improvement of the transmission efficiency, the Cassegrain antenna can be widely used in space optical communication. In this paper, the Bessel–Gaussian (BG) beam is used to avoid the central energy loss of a Cassegrain antenna system. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0bae3d3005d0975a2d84653582668c0
https://pubmed.ncbi.nlm.nih.gov/32400500
https://pubmed.ncbi.nlm.nih.gov/32400500
Publikováno v:
Applied optics. 58(13)
Central energy loss is a critical factor decreasing the transmission efficiency of a Cassegrain antenna. In this paper, a pair of conic lenses are designed and set in front of a Cassegrain antenna to improve the transmission efficiency of the antenna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a694858c0655fbc19c322c6fd48b7ee6
https://pubmed.ncbi.nlm.nih.gov/31044836
https://pubmed.ncbi.nlm.nih.gov/31044836
Publikováno v:
Optik. 127:1734-1737
In order to reduce the chromatic aberration problem of the multiple wavelength, reflex cassegrain antenna is widely used in space optical communication system. There are many external factors such as temperature and vibration that may cause defocusin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5002c9ada3e219bb09ba188c15ee9ba4
https://doi.org/10.1016/j.ijleo.2015.11.087
https://doi.org/10.1016/j.ijleo.2015.11.087
Publikováno v:
The International Photonics and Optoelectronics Meeting (POEM).
A practical design method is demonstrated to construct off-axis optical antenna when direction of incident rays, shape of secondary mirror and transmission direction of emergent light are given. A non-conicoid antenna is designed by this method.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20e76996f6da097efd90e4b83d960e26
https://doi.org/10.1364/oedi.2018.ot4a.61
https://doi.org/10.1364/oedi.2018.ot4a.61
Publikováno v:
Optik - International Journal for Light and Electron Optics. 126:2167-2170
Cassegrain antenna is a very important type of optical antenna, which is widely used in space optical communications. However, the secondary mirror barrier may cause lower transmission efficiency in practice. This paper studies the factors affecting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a1be04e6b90bbc187fdd3a01910f7ed
https://doi.org/10.1016/j.ijleo.2015.05.089
https://doi.org/10.1016/j.ijleo.2015.05.089
Publikováno v:
Journal of the Optical Society of Korea. 18:485-494
A novel antenna with ellipsoid-paraboloid surfaces configuration is designed for matching the incident radial radiation fiber laser distribution for maximum transmission efficiency. The on-axial and off-axial defocus effects on the optical antenna sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5269e99e0b4e76063bbdf32ec379e7d
https://doi.org/10.3807/josk.2014.18.5.485
https://doi.org/10.3807/josk.2014.18.5.485
Publikováno v:
Applied Optics. 58:1356
We propose a novel annular focus antenna with an off-axial parabolic primary mirror and slanting hyperbolic secondary mirror. Ray tracing based on three-dimensional vector reflection theory is utilized to design and analyze the structural parameters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::301cb9530126fcdeaad62a67e8c985b9
https://doi.org/10.1364/ao.58.001356
https://doi.org/10.1364/ao.58.001356
Publikováno v:
Optics Express. 27:4176
Designing a cavity with a high quality factor for omnidirectionally emitting laser (OEL) can extend its potential applications in optical communication and biomedical detection. We demonstrate a method including five steps to design a high-Q cavity f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aadb4be1b17d173a1a75017c4433c536
https://doi.org/10.1364/oe.27.004176
https://doi.org/10.1364/oe.27.004176