Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Guijun Hu"'
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 1, Pp 1-7 (2023)
This paper experimentally investigates the perform-ance of free-space optical (FSO) communication based on mode diversity reception (MDR) using nonmode selective photonic lantern (NSPL) and equal gain combining (EGC). By employing a mode demultiplexe
Externí odkaz:
https://doaj.org/article/635321a836b24ad3ab48413a3bc5c91b
Publikováno v:
IEEE Access, Vol 9, Pp 35968-35972 (2021)
In this paper, a novel two-dimensional (2D) beamforming system based on mode diversity and true-time delay (TTD) of optical fiber is proposed. The system is composed of two cascaded TTD units, which are single-mode fiber TTD line array and mode TTD l
Externí odkaz:
https://doaj.org/article/b77e722b998a435fb4f3f7990a261bd6
Publikováno v:
IEEE Access, Vol 8, Pp 116470-116477 (2020)
In this paper, an on-chip electro-optic (EO) modulator with loss compensation based on polymeric active-integrated waveguides was demonstrated. An erbium-doped waveguide amplifier was investigated and integrated with the EO modulator to compensate fo
Externí odkaz:
https://doaj.org/article/e1a994e8a4054722828e88eff94d76ff
Simultaneous Measurement of MDL and DMGD in FMFs by Analyzing the Rayleigh Backscattering Amplitudes
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 2, Pp 1-13 (2019)
In this paper, we propose and experimentally demonstrate a novel method for simultaneously measuring mode-dependent loss (MDL) and differential modal group delay (DMGD) in few mode fibers (FMFs). This method is based on analyzing the Rayleigh backsca
Externí odkaz:
https://doaj.org/article/d2aa5ef817634087a6f2b43b84697dd8
Publikováno v:
IEEE Access, Vol 7, Pp 142280-142286 (2019)
Coherent optical transmission systems have a four-dimensional (4-D) signal space (two quadratures in two polarizations), which can be used to create 4-D modulation formats that have better sensitivity than traditional two-dimensional modulation signa
Externí odkaz:
https://doaj.org/article/35bf18b6b53d4d34859b30a13a4df042
Publikováno v:
Nanomaterials, Vol 12, Iss 17, p 2937 (2022)
A Si3N4 slot waveguide has the ability to confine light tightly in the slot, shows weak absorption of 980 nm pump light, and has lower transmission loss compared to a Si slot. Hence, the optical waveguide amplifier based on Er3+ and Yb3+codoped was p
Externí odkaz:
https://doaj.org/article/24943262c0e349c9b3a3900bc749e775
Autor:
Guijun Hu, Chengbin Huang
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 2, Pp 1-12 (2018)
Mode-division multiplexing (MDM) over few-mode fibers has been proposed to break through the Shannon limit of the single-mode fiber. Mode coupling and differential mode group delay are two major drawbacks, which limit the performance of the system. I
Externí odkaz:
https://doaj.org/article/3b5439e7b7404712a01979910bcaea35
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 2, Pp 1-11 (2016)
We propose a mode demultiplexing method based on multichannel blind deconvolution (MBD) for a mode-division multiplexing (MDM) system. A 6 χ 6 MDM transmission system is simulated to verify the performance of MBD. Compared with the frequently used l
Externí odkaz:
https://doaj.org/article/e7171e7e610548fbb10f3d4658708f4b
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 4, Pp 1-9 (2016)
In this paper, we propose a novel high-dimensional mapping scheme based on erroneous bits minimization. Analysis and simulation results show that the proposed mapping can improve the bit-error-rate (BER) performance in comparison with random mapping
Externí odkaz:
https://doaj.org/article/4032fae67eab4de2ab0c8f46f157da28
Publikováno v:
In Optics Communications 1 July 2019 442:65-70