Zobrazeno 1 - 10
of 317
pro vyhledávání: '"COHERENT COMBINING"'
Autor:
XIANG Jing-song, Lü Xin-hao
Publikováno v:
Guangtongxin yanjiu, Pp 24-32 (2022)
In order to mitigate the performance fading of Free-Space Optical (FSO) communication system caused by atmospheric turbulence, a multi-aperture receiving scheme based on digital coherent beam combining is used. Digital coherent beam combining relies
Externí odkaz:
https://doaj.org/article/e7c18df6cfa8427b805fb55749998c03
Autor:
Jing-song XIANG, Xin-hao Lü
Publikováno v:
Guangtongxin yanjiu, Iss 5, Pp 24-32 (2022)
In order to mitigate the performance fading of Free-Space Optical (FSO) communication system caused by atmospheric turbulence, a multi-aperture receiving scheme based on digital coherent beam combining is used. Digital coherent beam combining relies
Externí odkaz:
https://doaj.org/article/d35d55924b5e41b38f915e933c0909c1
Autor:
Gehui Xie, Daping Luo, Zhenqiang Tang, Zejiang Deng, Lian Zhou, Jiayi Pan, Chenglin Gu, Can Li, Yang Liu, Jinyong Leng, Pu Zhou, Wenxue Li
Publikováno v:
Photonics, Vol 10, Iss 10, p 1138 (2023)
A coherent beam combination has the potential to revolutionize high-peak-power laser systems. However, achieving a high-average-power ultrashort pulse is difficult due to the accumulation of a nonlinear phase and gain narrowing. In this article, we d
Externí odkaz:
https://doaj.org/article/83466e8b360640d6bcbcfa6c99d9eabf
Publikováno v:
IEEE Access, Vol 10, Pp 79480-79490 (2022)
Free-space optical communication (FSOC) systems with variable data-rates can support different missions with different transmission distances and ensure reliable transmission in periods of unfavorable weather conditions. The temporal diversity cohere
Externí odkaz:
https://doaj.org/article/d1f60ad3d90d4995b6875445859b7593
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 2, Pp 1-10 (2020)
Digital coherent combining (DCC) technique can increase the free space optical signal collection area by combining the signals received by an array of small apertures in a coherent manner. To realize DCC the different versions of signals must be alig
Externí odkaz:
https://doaj.org/article/54f0bea56e8f415a853b45adcaeb2327
Publikováno v:
IEEE Access, Vol 8, Pp 202585-202595 (2020)
In free space optical communication systems, multi-aperture coherent optical receivers based on digital coherent beam combining (D-CBC) technique can provide exceptionally high sensitivity and are more robust to the atmosphere turbulence compared wit
Externí odkaz:
https://doaj.org/article/7b4d89df4d7446f390c47cf2c3308beb
Autor:
S.H Ghasemi, A Haghparast
Publikováno v:
مجله علوم و فنون هستهای, Vol 40, Iss 2, Pp 60-71 (2019)
In this paper, we used a coherent beam combination to design a 50 kW high power laser beam for energy applications. Because of the strong environmental turbulence, degrade the coherent beam combination advantages, low turbulence level is considered.
Externí odkaz:
https://doaj.org/article/006baad455ba44ff815d1c411679cbcb
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 6, Pp 1-11 (2019)
The free space optical communication (FSOC) signals often exhibit a much larger dynamic range and much lower OSNR than optical fiber communication signals, due to the large-scale relative motion of the terminals, change of atmospheric channel conditi
Externí odkaz:
https://doaj.org/article/1f5d53f40c694ceb88aa4a20f0bc62fb
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
The results of our investigations on the control over the orbital angular momentum (OAM) of a laser beam synthesized through combination of wave fields of a fiber array are reviewed. Peculiarities of OAM formation in the case of control over the valu
Externí odkaz:
https://doaj.org/article/85d7df15803b4db2bbd4660174e05462
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